US20060289539A1 - Outdoor pedestal closure assembly with flood protection - Google Patents
Outdoor pedestal closure assembly with flood protection Download PDFInfo
- Publication number
- US20060289539A1 US20060289539A1 US11/432,769 US43276906A US2006289539A1 US 20060289539 A1 US20060289539 A1 US 20060289539A1 US 43276906 A US43276906 A US 43276906A US 2006289539 A1 US2006289539 A1 US 2006289539A1
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- United States
- Prior art keywords
- dome
- base
- assembly
- lock
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/10—Installations of electric cables or lines in or on the ground or water in cable chambers, e.g. in manhole or in handhole
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5009—For portable articles
- Y10T70/5031—Receptacle
Definitions
- the present invention relates to an improved pedestal closure assembly and more particularly, to a pedestal closure assembly that is easy and quick to install, easy to open and close and very stable in the ground into which the assembly is placed.
- Telecommunications, cable television, power distribution equipment and the like include primary cable loops, terminal blocks, wires and connectors. These elements are commonly located out of plant and subject to ambient weather conditions. Since the necessary equipment is located outside, a protective covering is required to safeguard the equipment from human interference as well as from the environment. Therefore, such protective covering must provide structural as well as environmental protection.
- the pedestal structure includes a housing with a sufficient volume but occupying a small area and placeable in a convenient working orientation. Inside the housing cable pairs may be connected to each other and such connections are made at connector blocks which are mounted to a mounting plate inside the pedestal structure.
- the connector blocks include a number of terminals where the pairs of wires and the cable are stripped of their insulation and connected.
- a base portion of the pedestal closure assembly is substantially buried in the ground but includes a passageway to permit underground cables to be received into the interior of the pedestal.
- the cables extend through the base section and are covered by a top or dome which is mounted on the base and attached to it.
- the pedestal closure assembly when assembled and installed, should have sufficient structural strength to resist minor impacts as well as to resist environmental conditions such as wind, rain and blowing contaminants.
- a pedestal closure assembly comprising a substantially monolithic upper dome and a two-sectioned base for attaching to the dome.
- Each section of the base includes inner and outer ribs for stabilizing the pedestal in the ground.
- the pedestal disclosed here is easy and quick to install in the ground and once installed, has good stability.
- the pedestal does not pull out easily nor easily tilt away from a vertical position.
- the pedestal also is easy to open and close to facilitate service.
- There is only one lock mechanism to open (referred to as “one point of entry”) where a technician need only twist a lock one quarter turn or about 90 degrees with a lock opening tool to gain entry.
- the pedestal disclosed here provides good closure security and is strong, relatively inexpensive and very reliable.
- a further advantage is that the lock/dome combination may be moved past wires and cables without snagging.
- FIG. 1 is an isometric view of a pedestal closure assembly embodiment disclosed herein having a dome and a short base.
- FIG. 2 is an exploded isometric view of the pedestal closure assembly having a spade base and also illustrating an internally attached mounting plate.
- FIG. 3 is a front elevation view of the pedestal closure assembly shown in FIG. 2 .
- FIG. 4 is a side elevation view of the pedestal closure assembly shown in FIGS. 2 and 3 .
- FIG. 5 is a rear elevation view of the pedestal closure assembly shown in FIGS. 2-4 .
- FIG. 6 is a top plan view of the base portion of the pedestal closure assembly shown in FIGS. 2-5 and of the attached mounting plate.
- FIG. 7 is an enlarged front isometric view of the dome part of the pedestal closure assembly shown in FIGS. 1-5 .
- FIG. 8 is a rear isometric view of the dome shown in FIG. 7 .
- FIG. 9 is a rear upside down isometric view of the dome shown in FIGS. 7 and 8 .
- FIG. 10 is a bottom plan view of the dome shown in FIGS. 7-9 .
- FIG. 11 is a sectional elevation view of the dome taken along line 11 - 11 of FIG. 10 .
- FIG. 12 is an enlarged view taken within the circle 12 - 12 of FIG. 10 .
- FIG. 13 is a front isometric view of a front section of the base of the pedestal closure assembly.
- FIG. 14 is a rear isometric view of the front section of the base shown in FIG. 13 .
- FIG. 15 is an upside down rear isometric view of the front section of the base shown in FIGS. 13 and 14 .
- FIG. 16 is a rear elevation view of the front section of the base shown in FIGS. 13-15 .
- FIG. 17 is a sectional view taken along line 17 - 17 of FIG. 16 .
- FIG. 18 is a top plan view of the front section of the base shown in FIGS. 13-15 .
- FIG. 19 is a section view taken along line 19 - 19 of FIG. 16 .
- FIG. 20 is a front isometric view of the rear section of the base.
- FIG. 21 is a rear isometric view of the rear section of the base shown in FIG. 20 .
- FIG. 22 is an upside down rear isometric view of the rear section of the base shown in FIGS. 20 and 21 .
- FIG. 23 is a front elevation view of the rear section of the base shown in FIGS. 20-22 .
- FIG. 24 is a bottom plan view of the rear section of the base shown in FIGS. 20-23 .
- FIG. 25 is a sectional plan view taken along line 25 - 25 of FIG. 23 .
- FIG. 26 is a sectional plan view taken along line 26 - 26 of FIG. 23 .
- FIG. 27 is a sectional elevation view taken along line 27 - 27 of FIG. 23 .
- FIG. 28 is a side elevation view of the short version of the rear section of the base.
- FIG. 29 is an enlarged front isometric view of a slide lock.
- FIG. 30 is a rear isometric view of the slide lock assembly shown in FIG. 29 .
- FIG. 31 is a front elevation view of the slide lock assembly shown in FIGS. 29 and 30 .
- FIG. 32 is a sectional plan view taken along line 32 - 32 of FIG. 31 .
- FIG. 33 is a sectional elevation view taken along line 33 - 33 of FIG. 31 .
- FIG. 1 there is illustrated a pedestal closure assembly 10 showing an embodiment with a cover or dome part 12 and a base part 14 .
- the base is a short version.
- FIGS. 2-5 a second embodiment of the base part 18 is illustrated where the dome 12 is identical to the dome shown in FIG. 1 but the base part 20 has an extension or spade 22 integrally molded with the remainder of the base and extending downwardly.
- the mounting plate allows wires from an underground cable to be attached to connectors which are supported by the mounting plate.
- Underground cables are received by the pedestal closure assembly from below the pedestal.
- the pedestal is anchored in the ground to approximately the level shown by front and rear “ground lines” 26 , 28 .
- the dome 12 includes a front wall 30 , left and right side walls 32 , 34 , a rear wall 36 and a top wall 38 .
- the dome includes interior surfaces, such as the surface 40 , FIG. 9 , and an internal chamber 42 formed by the front, rear, side and top walls.
- a bulge 44 is formed by the front, rear, side and top walls.
- the bottom 46 of the dome is open and it is intended that the dome be received in a telescoping fashion by the base.
- three openings 50 , 52 , 54 are formed in vertical alignment, two small openings 50 , 54 for rivets to attach the lock to the dome, and a central opening 52 for insertion of a lock tool to rotate the lock mechanism through 90 degrees to “unlock” the dome from the base and allow removal of the dome for service of the equipment within the pedestal or for replacement of the dome should it be damaged.
- the dome is a single molded piece. This is important to operation in the field. It is desirable that the dome perform as a “bell jar” in flood situations. By bell jar, it is meant that water rising from beneath the dome will cause an increasing air pressure in the upper portion of the dome above the water level. This has the effect of suppressing the rising water to keep the water away from the electrical wires and connectors inside the pedestal.
- the dome is formed of a suitable synthetic resin, such as high density polyethylene, and has a normal wall thickness of 0.180 inches generally and about 0.200 inches at the bulge.
- the dome has two oppositely disposed vertically extending ribs 60 , 62 projecting outwardly from the inner surfaces of the dome into the chamber formed by the dome.
- the vertical ribs start about one inch from the bottom 46 of the dome. As will be explained, these ribs engage with corresponding slots formed in the base thereby securing the rear of the dome to the base while the lock secures the front of the dome to the base.
- the dome includes a front interior surface 66 , a left side interior surface 40 , a right side interior surface 68 and a rear interior surface 70 .
- the lock bulge 44 is formed in the front wall and the lock will attach to the front interior surface 66 .
- the lock mechanism has a thickness generally matching the extent of the bulge so that the lock mechanism does not extend in any substantial way into the internal chamber formed by the dome. This facilitates moving the dome past the mounting plate 24 when wires and connectors are attached to the mounting plate and not causing a “catch” or snag.
- the lock ribs 60 , 62 are formed along the left and right side interior surfaces 40 , 68 near the rear interior surface 70 .
- the ribs provide for an engagement between the dome and the base at the rear of the assembly to complement an abutment between the lock mechanism and the base at the front of the assembly. This ensures good security.
- the vertical ribs and slots also provide an alignment feature when placing the dome over the base and the ribs act to strengthen the dome and make it more robust.
- a small tab 72 Integrally formed with the dome is a small tab 72 which is used to key the location of the lock mechanism and facilitate assembly of the lock mechanism and the dome.
- the dome is strong and relatively inexpensive since the dome is molded as one piece, and the dome and lock mechanism will provide good security.
- Each base 14 , 20 is known as a split base and includes a front or cover section and a rear section.
- the cover section includes an upper portion 82 of smaller dimensions to receive the dome in a telescoping fashion and a lower portion 84 of larger dimensions, most of which portion is to be placed below ground level in use.
- the upper portion includes a front wall 85 , a locking rib 86 in the configuration of an “E” extending from the front wall and an alignment flange 88 , also extending from the front wall.
- the alignment flange ensures alignment of the lock body when the dome and base are being secured.
- the E rib provides with the lock an interference fit as will be explained below.
- the lower portion 84 of the base cover section includes a front wall 90 , a left side wall 92 and a right side wall 94 .
- Integral with an outer surface 96 of the front and side walls are three horizontally disposed ribs, an upper rib 98 , a middle rib 100 and a lower rib 102 .
- the ribs extend generally in a continuous fashion around the cover section of the base.
- Four vertical ribs 106 , 108 , 110 , 112 are integral with the horizontal ribs and the first vertical rib 106 extends from the right side wall, the second vertical rib 108 extends from the left side wall 92 and two vertical ribs 110 , 112 extend from the front wall 90 .
- Integral with the inner surfaces 116 , 118 of the side walls are two horizontally disposed ribs 120 , 122 that are located elevationally about the same level as the outer upper rib 98 and the middle rib 100 .
- Also molded integrally with the base cover section are two curved walls 124 , 126 which form with the inner surface of the front wall an internal wire channel.
- the channel allows underground wires or cables to be inserted through a front opening 130 and extended within the channel upwardly in the pedestal assembly.
- the wall thickness of the base is a nominal 0.180 inches and the material is high density polyethylene.
- the wire channel is shown in FIGS. 16-19 as are the inner and outer horizontal ribs.
- the base cover section also includes vertical flanges 132 , 134 , FIG. 14 , that extend away from the side walls so as to engage with the rear section of the base. Openings 136 , 138 are provided as are fasteners 140 , 142 .
- a lower portion 168 of the rear base section 144 includes a left wall 170 , a right wall 172 and a rear wall 174 .
- Integral with outer surfaces 176 , 178 , 180 of the side and rear walls are a set of three horizontally spaced ribs 182 , 184 , 186 and four vertically spaced ribs 190 , 192 , 194 , 196 .
- Integrally formed with the walls but extending from interior surfaces 200 , 202 , 204 are three spaced horizontal ribs 206 , 208 , 210 and two attached vertical ribs 212 , 214 , FIG. 23 .
- the horizontal and vertical ribs extending from the outer surfaces of the walls of the rear base section are formed into box-like structures to enhance strength and resistance to ground extraction.
- the three outer horizontal ribs include the upper rib 182 , the middle rib 184 and the lower rib 186 .
- the inner and outer ribs are also shown in FIGS. 23-27 along with a horizontal step 220 and three supporting vertical flanges 222 , 224 , 226 extending from the rear surface 178 of the downwardly projecting spade portion of the rear base section.
- the side walls 170 , 172 also include two pairs of slots 230 , 232 and 234 , 236 , FIG. 20 , for receiving connectors that are used on the cover base section or added after the cover and rear base sections are brought together.
- the short variation 240 of the base section is illustrated along with one slot 242 of a pair of slots in the upper portion 244 for receiving the vertical ribs 60 , 62 , FIG. 11 , of the dome.
- the short version of the base also includes the same geometric pattern of outer, horizontal and vertical ribs 250 , 252 , 254 and 256 , 258 .
- the short version also includes three inner horizontal ribs and two vertical ribs, as shown and described in relation to the embodiment shown in FIGS. 20-27 .
- the lock includes a base 272 , a cover 274 , a slider 276 , a rotator 278 and two compression springs 277 , 279 .
- the base 272 includes an outside surface having two slanted end panels 290 , 292 , two slanted sides 294 , 296 and a grill-like top 298 .
- the end panels are slanted at about 40-45 degrees from a horizontal reference and the sides are slanted at about 30-35 degrees from a horizontal reference and all intersections are rounded as shown.
- the base also includes a rear wall 300 and a slider channel formed by the rear wall, two spaced apart lateral walls 302 , 304 and a base side wall 306 .
- the base also includes two spring guides 307 , 308 , four snap openings 310 , 312 , 314 , 316 and two rivet receiving openings 318 , 320 .
- a hole 322 is formed in the base wall 306 for the rotator.
- the base further includes a key groove 324 , a pair of drain ports 326 , 328 in the lateral wall 302 and another pair of drain ports 330 , 332 in the bottom end 334 of the base.
- the cover includes a key groove 340 along its upper edge.
- the key grooves 324 , 340 of the base and the cover mate with the key tab 72 , FIG. 11 , formed in the dome.
- Two aligned openings 342 , 344 are formed in the cover and these align themselves with the opening 318 , 320 in the lock base and the two small openings 50 , 54 , FIG. 7 , in the dome 12 .
- the aligned openings allow rivets to be attached to the dome and to the lock so as to fasten the lock to the dome.
- the cover also includes a large central opening 345 , a surrounding security ring 346 to prevent tampering and four snap arms 347 , 348 , 349 , 350 .
- the rotator 278 has a hex shaped head 351 as shown in FIG. 29 .
- the hex head extends through the central opening 345 in the cover.
- the security ring around the head formed integral with the cover prevents a typical household tool, such as pliers, or a wrench from effectively engaging the hex head. This arrangement makes the hex head accessible only to a specially constructed opening tool.
- the rotator 278 also includes a cylindrical body 352 and a cam arm 354 .
- the slider 276 includes outer slide walls 360 , 362 , an end wall 364 and an outer cam follower wall 366 .
- the slider also has a base wall 368 with a slot opening 370 to receive the rotator, an inner cam follower wall 372 and two limit tabs 374 , 376 .
- the cam arm 354 bears against the inner cam follower wall 372 of the slider and thereby retracts the slider to the left, when viewed as in FIG. 36 , from its extended position shown in FIG. 35 . Moving the slider to the left compresses the two springs and creates a sufficient rightward biasing force to return the slider to its extended position when the opening tool is removed.
- the E rib 86 acts as a cam to bear against the outer cam follower wall 366 of the slider causing it to retract until the slider passes the E-rib. Once passed, the springs bias the slider to its extended position to cause an interference fit between the E-rib and the slider wall 360 .
- the slanted outer surfaces 290 , 292 , 293 , 296 of the lock mechanism which extend into the interior of the pedestal closure assembly do not snag wires situated there as the dome is moved relative to the pedestal base during dome removal or installation. This is because there are no sharp corners and because the lock mechanism is located in the bulge of the dome.
- the purpose of the outer and inner ribs on the pedestal base is to provide greater stability to the pedestal closure assembly when it is installed in the ground.
- Customers of such pedestals prefer to excavate shallow pits in which pedestal assemblies are then installed.
- the short or shallow pedestal embodiment shown in FIG. 1 may be situated in a hole dug to a depth of only about ten inches.
- the pedestal is then positioned and earth or sand or other ground medium is used to compact around the base both outside and inside. It has been found that a spacing of about three and one half inches between horizontal ribs gives good results against easy pullout from the ground.
- the width of each rib is approximately one inch.
- the spacing of the inner ribs is analogous to that of the outer ribs and the inner ribs are a little less than an inch in width.
- openings, 380 , 382 , FIG. 1 are provided to attach a metal stake which may be used to enhance ground stability of a short base pedestal. Once again, however, there is no requirement that a stake be used.
- the internal vertical ribs of the dome and the slots in the pedestal base provide for an inner lock along the rear of the pedestal.
- a strong, secure arrangement is provided for attachment of the dome to the pedestal base.
- a technician need only use a special tool with the lock mechanism and rotate the tool ninety degrees to cause the lock to disengage and allow the removal of the dome from the pedestal base.
- a technician need only go to a single point to allow disengagement of the dome.
- the technician need only use a single tool and a simple ninety degree twist for the unlocking step.
- To reassemble the dome with the pedestal base a technician merely aligns the ribs of the dome and the slots of the base and pushes downwardly. The slider of the lock will be retracted by the camming action of the E rib and will automatically snap into a locking position once the E rib has been passed.
- the pedestal In operation the pedestal is installed over an underground cable and is typically buried in the ground to about ten inches not including a spike or the spade version of the pedestal. Because of the outer and inner ribs around the pedestal base, a relatively shallow hole or pit need be dug. This is a time and labor saving advantage for the pedestal of the present application. Once the pedestal is placed in the ground, soil, sand or the like is compacted around the pedestal to ensure that the pedestal remains upright. Because of the ribs, great stability in the ground is achieved.
- the pedestal After installation in the ground, the pedestal may be easily opened for service. To gain access to the cables, wires, connectors and the like that are housed within the pedestal, a technician need only place a tool on the hex head rotator of the slide lock and twist the hex head a quarter turn. This retracts the slider of the lock away from abutting engagement with the E rib on the pedestal base so that the dome may be raised upwardly and away from the base. After completion of service, the dome may be replaced on the pedestal base simply by aligning the vertical ribs of the dome with the slots in the base and pushing downwardly so that the E rib cams the slider of the lock to a retracted position. When the E rib has been passed by the lock, the slider automatically extends so as to create an interference abutment thereby locking the dome to the base.
Abstract
Description
- This application is a divisional of U.S. application Ser. No. 10/712,612 filed Nov. 11, 2003, the entire disclosure of which is incorporated herein by reference.
- Not applicable.
- 1. Field of the Invention
- The present invention relates to an improved pedestal closure assembly and more particularly, to a pedestal closure assembly that is easy and quick to install, easy to open and close and very stable in the ground into which the assembly is placed.
- 2. Description of the Related Art
- Telecommunications, cable television, power distribution equipment and the like include primary cable loops, terminal blocks, wires and connectors. These elements are commonly located out of plant and subject to ambient weather conditions. Since the necessary equipment is located outside, a protective covering is required to safeguard the equipment from human interference as well as from the environment. Therefore, such protective covering must provide structural as well as environmental protection.
- One such protective covering is in the form of a pedestal closure assembly. The pedestal structure includes a housing with a sufficient volume but occupying a small area and placeable in a convenient working orientation. Inside the housing cable pairs may be connected to each other and such connections are made at connector blocks which are mounted to a mounting plate inside the pedestal structure. The connector blocks include a number of terminals where the pairs of wires and the cable are stripped of their insulation and connected.
- A base portion of the pedestal closure assembly is substantially buried in the ground but includes a passageway to permit underground cables to be received into the interior of the pedestal. The cables extend through the base section and are covered by a top or dome which is mounted on the base and attached to it. The pedestal closure assembly, when assembled and installed, should have sufficient structural strength to resist minor impacts as well as to resist environmental conditions such as wind, rain and blowing contaminants.
- Examples of such pedestals may be found in U.S. Pat. Nos. 5,384,427; 5,412,960; 6,182,846; 6,198,041; 6,244,635 and 6,598,949, all of which are owned by the assignee of the present application. The disclosures of the above mentioned patents are included herein by reference.
- Improvements in the above mentioned pedestals are always desirable. What is described here is a pedestal closure assembly comprising a substantially monolithic upper dome and a two-sectioned base for attaching to the dome. Each section of the base includes inner and outer ribs for stabilizing the pedestal in the ground.
- There are a number of advantages, features and objects achieved with the present invention which are believed not to be available in earlier related devices. The pedestal disclosed here is easy and quick to install in the ground and once installed, has good stability. The pedestal does not pull out easily nor easily tilt away from a vertical position. The pedestal also is easy to open and close to facilitate service. There is only one lock mechanism to open (referred to as “one point of entry”) where a technician need only twist a lock one quarter turn or about 90 degrees with a lock opening tool to gain entry. Nevertheless, the pedestal disclosed here provides good closure security and is strong, relatively inexpensive and very reliable. A further advantage is that the lock/dome combination may be moved past wires and cables without snagging.
- A more complete understanding of the present invention and other objects, advantages and features thereof will be gained from a consideration of the following description of preferred embodiments read in conjunction with the accompanying drawing provided herein. The preferred embodiments disclosed represent examples of the invention which are described here in compliance with Title 35 U.S.C. section 112 (first paragraph), but the invention itself is defined by the attached claims.
-
FIG. 1 is an isometric view of a pedestal closure assembly embodiment disclosed herein having a dome and a short base. -
FIG. 2 is an exploded isometric view of the pedestal closure assembly having a spade base and also illustrating an internally attached mounting plate. -
FIG. 3 is a front elevation view of the pedestal closure assembly shown inFIG. 2 . -
FIG. 4 is a side elevation view of the pedestal closure assembly shown inFIGS. 2 and 3 . -
FIG. 5 is a rear elevation view of the pedestal closure assembly shown inFIGS. 2-4 . -
FIG. 6 is a top plan view of the base portion of the pedestal closure assembly shown inFIGS. 2-5 and of the attached mounting plate. -
FIG. 7 is an enlarged front isometric view of the dome part of the pedestal closure assembly shown inFIGS. 1-5 . -
FIG. 8 is a rear isometric view of the dome shown inFIG. 7 . -
FIG. 9 is a rear upside down isometric view of the dome shown inFIGS. 7 and 8 . -
FIG. 10 is a bottom plan view of the dome shown inFIGS. 7-9 . -
FIG. 11 is a sectional elevation view of the dome taken along line 11-11 ofFIG. 10 . -
FIG. 12 is an enlarged view taken within the circle 12-12 ofFIG. 10 . -
FIG. 13 is a front isometric view of a front section of the base of the pedestal closure assembly. -
FIG. 14 is a rear isometric view of the front section of the base shown inFIG. 13 . -
FIG. 15 is an upside down rear isometric view of the front section of the base shown inFIGS. 13 and 14 . -
FIG. 16 is a rear elevation view of the front section of the base shown inFIGS. 13-15 . -
FIG. 17 is a sectional view taken along line 17-17 ofFIG. 16 . -
FIG. 18 is a top plan view of the front section of the base shown inFIGS. 13-15 . -
FIG. 19 is a section view taken along line 19-19 ofFIG. 16 . -
FIG. 20 is a front isometric view of the rear section of the base. -
FIG. 21 is a rear isometric view of the rear section of the base shown inFIG. 20 . -
FIG. 22 is an upside down rear isometric view of the rear section of the base shown inFIGS. 20 and 21 . -
FIG. 23 is a front elevation view of the rear section of the base shown inFIGS. 20-22 . -
FIG. 24 is a bottom plan view of the rear section of the base shown inFIGS. 20-23 . -
FIG. 25 is a sectional plan view taken along line 25-25 ofFIG. 23 . -
FIG. 26 is a sectional plan view taken along line 26-26 ofFIG. 23 . -
FIG. 27 is a sectional elevation view taken along line 27-27 ofFIG. 23 . -
FIG. 28 is a side elevation view of the short version of the rear section of the base. -
FIG. 29 is an enlarged front isometric view of a slide lock. -
FIG. 30 is a rear isometric view of the slide lock assembly shown inFIG. 29 . -
FIG. 31 is a front elevation view of the slide lock assembly shown inFIGS. 29 and 30 . -
FIG. 32 is a sectional plan view taken along line 32-32 ofFIG. 31 . -
FIG. 33 is a sectional elevation view taken along line 33-33 ofFIG. 31 . - While the present invention is open to various modifications and alternative constructions, the preferred embodiments shown in the various figures of the drawing will be described herein in detail. It is understood, however, that there is no intention to limit the invention to the particular embodiments, forms or examples which are disclosed here. On the contrary, the intention is to cover all modifications, equivalent structures and methods, and alternative constructions falling within the spirit and scope of the invention as expressed in the appended claims, pursuant to Title 35 U.S.C. section 112 (second paragraph).
- Referring now to
FIG. 1 , there is illustrated a pedestal closure assembly 10 showing an embodiment with a cover ordome part 12 and abase part 14. In theFIG. 1 embodiment, the base is a short version. InFIGS. 2-5 , a second embodiment of thebase part 18 is illustrated where thedome 12 is identical to the dome shown inFIG. 1 but thebase part 20 has an extension orspade 22 integrally molded with the remainder of the base and extending downwardly. - Attached to the base for mounting in the interior of the pedestal assembly is a mounting
plate 24. The mounting plate allows wires from an underground cable to be attached to connectors which are supported by the mounting plate. Underground cables are received by the pedestal closure assembly from below the pedestal. In normal usage, the pedestal is anchored in the ground to approximately the level shown by front and rear “ground lines” 26, 28. - More detail of similar pedestals and their operation may be acquired by reference to the four above mentioned patents.
- Referring now to
FIGS. 1-9 , thedome 12 includes afront wall 30, left andright side walls rear wall 36 and atop wall 38. The dome includes interior surfaces, such as thesurface 40,FIG. 9 , and aninternal chamber 42 formed by the front, rear, side and top walls. At thelower end portion 43 of the front wall is abulge 44 to accommodate a lock mechanism as will be described below in relation toFIGS. 29-36 . The bottom 46 of the dome is open and it is intended that the dome be received in a telescoping fashion by the base. - At the
bulge 44 threeopenings small openings central opening 52 for insertion of a lock tool to rotate the lock mechanism through 90 degrees to “unlock” the dome from the base and allow removal of the dome for service of the equipment within the pedestal or for replacement of the dome should it be damaged. - It is to be noted that above the three openings, the dome is a single molded piece. This is important to operation in the field. It is desirable that the dome perform as a “bell jar” in flood situations. By bell jar, it is meant that water rising from beneath the dome will cause an increasing air pressure in the upper portion of the dome above the water level. This has the effect of suppressing the rising water to keep the water away from the electrical wires and connectors inside the pedestal.
- The dome is formed of a suitable synthetic resin, such as high density polyethylene, and has a normal wall thickness of 0.180 inches generally and about 0.200 inches at the bulge.
- Referring now to
FIGS. 10-12 , the dome has two oppositely disposed vertically extendingribs - The dome includes a front
interior surface 66, a left sideinterior surface 40, a right sideinterior surface 68 and a rearinterior surface 70. Thelock bulge 44 is formed in the front wall and the lock will attach to the frontinterior surface 66. The lock mechanism has a thickness generally matching the extent of the bulge so that the lock mechanism does not extend in any substantial way into the internal chamber formed by the dome. This facilitates moving the dome past the mountingplate 24 when wires and connectors are attached to the mounting plate and not causing a “catch” or snag. Thelock ribs interior surface 70. The ribs provide for an engagement between the dome and the base at the rear of the assembly to complement an abutment between the lock mechanism and the base at the front of the assembly. This ensures good security. The vertical ribs and slots also provide an alignment feature when placing the dome over the base and the ribs act to strengthen the dome and make it more robust. - Integrally formed with the dome is a
small tab 72 which is used to key the location of the lock mechanism and facilitate assembly of the lock mechanism and the dome. - It is now apparent that above the three aligned
openings - Each
base FIGS. 13-15 , thebase cover section 80 is illustrated and is the same for both theFIG. 1 and theFIG. 2 embodiments. The cover section includes anupper portion 82 of smaller dimensions to receive the dome in a telescoping fashion and alower portion 84 of larger dimensions, most of which portion is to be placed below ground level in use. The upper portion includes afront wall 85, a lockingrib 86 in the configuration of an “E” extending from the front wall and analignment flange 88, also extending from the front wall. The alignment flange ensures alignment of the lock body when the dome and base are being secured. The E rib provides with the lock an interference fit as will be explained below. - The
lower portion 84 of the base cover section includes afront wall 90, a left side wall 92 and a right side wall 94. Integral with anouter surface 96 of the front and side walls are three horizontally disposed ribs, anupper rib 98, amiddle rib 100 and alower rib 102. The ribs extend generally in a continuous fashion around the cover section of the base. Fourvertical ribs vertical rib 106 extends from the right side wall, the secondvertical rib 108 extends from the left side wall 92 and twovertical ribs front wall 90. - Integral with the
inner surfaces ribs upper rib 98 and themiddle rib 100. Also molded integrally with the base cover section are twocurved walls front opening 130 and extended within the channel upwardly in the pedestal assembly. The wall thickness of the base is a nominal 0.180 inches and the material is high density polyethylene. - The wire channel is shown in
FIGS. 16-19 as are the inner and outer horizontal ribs. The base cover section also includesvertical flanges FIG. 14 , that extend away from the side walls so as to engage with the rear section of the base.Openings fasteners - Referring now to
FIGS. 20-22 , therear base section 144 of thebase 20, including the spade or scoop 22 shown inFIGS. 2-5 , is illustrated in greater detail. The rear base section includes anupper portion 150 having aleft side wall 152, aright side wall 154 and arear wall 156. Each side wall includes aslot ribs FIGS. 10 and 1 1, of the dome. The upper portion also includes a pair ofchannel structures plate 24,FIG. 2 . - A
lower portion 168 of therear base section 144 includes a left wall 170, a right wall 172 and arear wall 174. Integral withouter surfaces ribs ribs interior surfaces horizontal ribs vertical ribs FIG. 23 . As illustrated, the horizontal and vertical ribs extending from the outer surfaces of the walls of the rear base section are formed into box-like structures to enhance strength and resistance to ground extraction. The three outer horizontal ribs include theupper rib 182, themiddle rib 184 and thelower rib 186. The same is true for the three interior ribs, theupper rib 206, themiddle rib 208 and thelower rib 210. - The inner and outer ribs are also shown in
FIGS. 23-27 along with ahorizontal step 220 and three supportingvertical flanges rear surface 178 of the downwardly projecting spade portion of the rear base section. - The side walls 170, 172 also include two pairs of
slots FIG. 20 , for receiving connectors that are used on the cover base section or added after the cover and rear base sections are brought together. - Referring now to
FIG. 28 , theshort variation 240 of the base section is illustrated along with oneslot 242 of a pair of slots in theupper portion 244 for receiving thevertical ribs FIG. 11 , of the dome. The short version of the base also includes the same geometric pattern of outer, horizontal andvertical ribs FIGS. 20-27 . - Referring now to
FIGS. 29-36 , there is illustrated a preferred embodiment of a lock mechanism 270. As is explained in more detail in co-pending application Ser. No. 10/712,226 filed on Nov. 13, 2003 and owned by the assignee of the present invention, the lock includes abase 272, acover 274, aslider 276, a rotator 278 and two compression springs 277, 279. - The
base 272 includes an outside surface having twoslanted end panels sides like top 298. The end panels are slanted at about 40-45 degrees from a horizontal reference and the sides are slanted at about 30-35 degrees from a horizontal reference and all intersections are rounded as shown. The base also includes arear wall 300 and a slider channel formed by the rear wall, two spaced apartlateral walls base side wall 306. The base also includes two spring guides 307, 308, foursnap openings rivet receiving openings hole 322 is formed in thebase wall 306 for the rotator. The base further includes akey groove 324, a pair ofdrain ports lateral wall 302 and another pair ofdrain ports bottom end 334 of the base. - The cover includes a
key groove 340 along its upper edge. Thekey grooves key tab 72,FIG. 11 , formed in the dome. This allows the lock to be correctly and quickly aligned in and assembled with the dome. Two alignedopenings opening small openings FIG. 7 , in thedome 12. The aligned openings allow rivets to be attached to the dome and to the lock so as to fasten the lock to the dome. The cover also includes a largecentral opening 345, a surroundingsecurity ring 346 to prevent tampering and foursnap arms - The rotator 278 has a hex shaped
head 351 as shown inFIG. 29 . The hex head extends through thecentral opening 345 in the cover. The security ring around the head formed integral with the cover prevents a typical household tool, such as pliers, or a wrench from effectively engaging the hex head. This arrangement makes the hex head accessible only to a specially constructed opening tool. The rotator 278 also includes acylindrical body 352 and acam arm 354. - The
slider 276 includesouter slide walls end wall 364 and an outercam follower wall 366. The slider also has abase wall 368 with aslot opening 370 to receive the rotator, an innercam follower wall 372 and twolimit tabs cam arm 354 bears against the innercam follower wall 372 of the slider and thereby retracts the slider to the left, when viewed as inFIG. 36 , from its extended position shown inFIG. 35 . Moving the slider to the left compresses the two springs and creates a sufficient rightward biasing force to return the slider to its extended position when the opening tool is removed. In a similar fashion, when the dome and lock are brought together with the pedestal base, theE rib 86,FIG. 13 , acts as a cam to bear against the outercam follower wall 366 of the slider causing it to retract until the slider passes the E-rib. Once passed, the springs bias the slider to its extended position to cause an interference fit between the E-rib and theslider wall 360. - It is noted that the slanted
outer surfaces - The purpose of the outer and inner ribs on the pedestal base is to provide greater stability to the pedestal closure assembly when it is installed in the ground. Customers of such pedestals prefer to excavate shallow pits in which pedestal assemblies are then installed. For example, the short or shallow pedestal embodiment shown in
FIG. 1 may be situated in a hole dug to a depth of only about ten inches. The pedestal is then positioned and earth or sand or other ground medium is used to compact around the base both outside and inside. It has been found that a spacing of about three and one half inches between horizontal ribs gives good results against easy pullout from the ground. The width of each rib is approximately one inch. The spacing of the inner ribs is analogous to that of the outer ribs and the inner ribs are a little less than an inch in width. - When the spade version of the pedestal is used, ground stability is improved but the spade is not essential to the proper functioning of the pedestal. Also, openings, 380, 382,
FIG. 1 , are provided to attach a metal stake which may be used to enhance ground stability of a short base pedestal. Once again, however, there is no requirement that a stake be used. - The internal vertical ribs of the dome and the slots in the pedestal base provide for an inner lock along the rear of the pedestal. In combination with the lock mechanism at the front of the pedestal, a strong, secure arrangement is provided for attachment of the dome to the pedestal base.
- While a strong all around attachment is made, a technician need only use a special tool with the lock mechanism and rotate the tool ninety degrees to cause the lock to disengage and allow the removal of the dome from the pedestal base. Thus, a technician need only go to a single point to allow disengagement of the dome. Furthermore, the technician need only use a single tool and a simple ninety degree twist for the unlocking step. To reassemble the dome with the pedestal base, a technician merely aligns the ribs of the dome and the slots of the base and pushes downwardly. The slider of the lock will be retracted by the camming action of the E rib and will automatically snap into a locking position once the E rib has been passed.
- In operation the pedestal is installed over an underground cable and is typically buried in the ground to about ten inches not including a spike or the spade version of the pedestal. Because of the outer and inner ribs around the pedestal base, a relatively shallow hole or pit need be dug. This is a time and labor saving advantage for the pedestal of the present application. Once the pedestal is placed in the ground, soil, sand or the like is compacted around the pedestal to ensure that the pedestal remains upright. Because of the ribs, great stability in the ground is achieved.
- After installation in the ground, the pedestal may be easily opened for service. To gain access to the cables, wires, connectors and the like that are housed within the pedestal, a technician need only place a tool on the hex head rotator of the slide lock and twist the hex head a quarter turn. This retracts the slider of the lock away from abutting engagement with the E rib on the pedestal base so that the dome may be raised upwardly and away from the base. After completion of service, the dome may be replaced on the pedestal base simply by aligning the vertical ribs of the dome with the slots in the base and pushing downwardly so that the E rib cams the slider of the lock to a retracted position. When the E rib has been passed by the lock, the slider automatically extends so as to create an interference abutment thereby locking the dome to the base.
- The above specification describes in detail two preferred embodiments of the present invention. Other examples, embodiments, modifications and variations will, under both the literal claim language and the doctrine of equivalents, come within the scope of the invention defined by the appended claims. For example, slightly different shapes for the dome and pedestal base or the lock and E rib are still considered equivalent structures and will also come within the literal language of the claims. Still other alternatives will also be equivalent as will many new technologies. There is no desire or intention here to limit in any way the application of the doctrine of equivalents nor to limit or restrict the scope of the invention.
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/432,769 US20060289539A1 (en) | 2003-11-13 | 2006-05-11 | Outdoor pedestal closure assembly with flood protection |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/712,612 US20050103780A1 (en) | 2003-11-13 | 2003-11-13 | Pedestal closure assembly |
US11/432,769 US20060289539A1 (en) | 2003-11-13 | 2006-05-11 | Outdoor pedestal closure assembly with flood protection |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/712,612 Division US20050103780A1 (en) | 2003-11-13 | 2003-11-13 | Pedestal closure assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060289539A1 true US20060289539A1 (en) | 2006-12-28 |
Family
ID=34573581
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/712,612 Abandoned US20050103780A1 (en) | 2003-11-13 | 2003-11-13 | Pedestal closure assembly |
US11/432,769 Abandoned US20060289539A1 (en) | 2003-11-13 | 2006-05-11 | Outdoor pedestal closure assembly with flood protection |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/712,612 Abandoned US20050103780A1 (en) | 2003-11-13 | 2003-11-13 | Pedestal closure assembly |
Country Status (4)
Country | Link |
---|---|
US (2) | US20050103780A1 (en) |
CA (1) | CA2546062A1 (en) |
MX (1) | MXPA06005312A (en) |
WO (1) | WO2005050806A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050235589A1 (en) * | 2002-02-25 | 2005-10-27 | Haworth, Ltd. | Raised access floor system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4692118B2 (en) * | 2005-07-15 | 2011-06-01 | トヨタ自動車株式会社 | Engine control device |
US9297186B2 (en) * | 2011-09-30 | 2016-03-29 | Emerson Network Power, Energy Systems, North America, Inc. | Lock assemblies for telecommunications enclosures |
JP5453568B1 (en) * | 2013-11-25 | 2014-03-26 | 達哉 芦川 | OBD connector protective cover |
CA2995954C (en) | 2015-08-19 | 2023-03-28 | Hubbell Incorporated | Utility enclosure pedestal |
US10910802B2 (en) * | 2016-04-20 | 2021-02-02 | Hubbell Incorporated | Pedestal enclosure for utility components |
US10256616B1 (en) * | 2018-02-19 | 2019-04-09 | Maclean Power, L.L.C. | Self centering enclosure |
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-
2003
- 2003-11-13 US US10/712,612 patent/US20050103780A1/en not_active Abandoned
-
2004
- 2004-11-12 WO PCT/US2004/038163 patent/WO2005050806A1/en active Application Filing
- 2004-11-12 MX MXPA06005312A patent/MXPA06005312A/en not_active Application Discontinuation
- 2004-11-12 CA CA 2546062 patent/CA2546062A1/en not_active Abandoned
-
2006
- 2006-05-11 US US11/432,769 patent/US20060289539A1/en not_active Abandoned
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US3872234A (en) * | 1974-02-11 | 1975-03-18 | Roart Plastics Inc | Electrical cable pedestal structure |
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US4029348A (en) * | 1976-04-13 | 1977-06-14 | Edson Tool And Manufacturing Company, Inc. | Self-locking devices |
US4097683A (en) * | 1976-09-15 | 1978-06-27 | Coil Sales & Manufacturing Co. | Terminal housing for buried electrical cables and method of expanding same |
US4365108A (en) * | 1981-07-09 | 1982-12-21 | Bright William L | Secondary power pedestal for electrical equipment |
US4631353A (en) * | 1984-10-31 | 1986-12-23 | Reliance Electric Company | Terminal pedestal for buried cable installation |
US4892978A (en) * | 1989-03-06 | 1990-01-09 | William Axworthy | Self-supporting pedestal |
US5384427A (en) * | 1991-09-20 | 1995-01-24 | Reliance Comm/Tec Corporation | Flood protection pedestal |
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US6244635B1 (en) * | 1999-09-13 | 2001-06-12 | Marconi Communications, Inc. | Latching mechanism for mounting plate of pedestal closure assembly |
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US6316722B1 (en) * | 2000-03-01 | 2001-11-13 | Marconi Communications, Inc. | Vented pedestal for electronics housing |
US6598949B2 (en) * | 2001-04-06 | 2003-07-29 | Marconi Communications, Inc. | Data transmission pedestal with two piece base |
US6462269B1 (en) * | 2001-07-06 | 2002-10-08 | Marconi Communications, Inc. | Data transmission pedestal with internal service line passage |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20050235589A1 (en) * | 2002-02-25 | 2005-10-27 | Haworth, Ltd. | Raised access floor system |
US7650726B2 (en) * | 2002-02-25 | 2010-01-26 | Haworth, Ltd. | Raised access floor system |
Also Published As
Publication number | Publication date |
---|---|
WO2005050806A1 (en) | 2005-06-02 |
MXPA06005312A (en) | 2007-01-26 |
US20050103780A1 (en) | 2005-05-19 |
CA2546062A1 (en) | 2005-06-02 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMEIC Free format text: CHANGE OF NAME;ASSIGNOR:EMERSUB XCII, INC.;REEL/FRAME:018994/0540 Effective date: 20040816 Owner name: EMERSUB XCII, INC., MISSOURI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARCONI INTELLECTUAL PROPERTY (RINGFENCE) INC.;REEL/FRAME:018994/0451 Effective date: 20040812 Owner name: MARCONI INTELLECTUAL PROPERTY (RINGFENCE) INC., PE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARCONI COMMUNICATIONS, INC.;REEL/FRAME:018994/0404 Effective date: 20040405 Owner name: MARCONI COMMUNICATIONS, INC., OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MALONEY, JEROME A.;MCGOVERN, ALBERT;REEL/FRAME:018994/0289;SIGNING DATES FROM 20031117 TO 20031201 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |