US3625289A - Sprinkler - Google Patents
Sprinkler Download PDFInfo
- Publication number
- US3625289A US3625289A US34184A US3625289DA US3625289A US 3625289 A US3625289 A US 3625289A US 34184 A US34184 A US 34184A US 3625289D A US3625289D A US 3625289DA US 3625289 A US3625289 A US 3625289A
- Authority
- US
- United States
- Prior art keywords
- strut
- lever
- sprinkler
- engagement
- frame
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
Definitions
- a sprinkler is provided which includes a frame, a deflector, seat closure cap, a strut and a lever bearing against [52] 0.8.
- This invention relatesto a sprinkler of the strut and lever type having a transverse retaining tube containing a heatresponsive alloy element, a disk and a ball engaged with and preventing lever and seat closure cap release, until predeter mined temperatures are attained.
- the sprinkler of the invention is free from alloy cold-flow problems as the strut and lever assembly is always securely retained in place, and when released does not interfere with waterflow.
- the sprinkler of the invention has none of the disadvantages of prior sprinklers and has additional desirable characteristics.
- a sprinkler having a seat closure cap held in closed position by a strut and lever.
- the strut and lever are prevented from movement by a ball and a pellet of heat-sensitive material contained in a tube which pellet collapses when a predetermined temperature is reached, permits the ball to move inwardly and releases the lever, strut-and-seat closure cap to permit water to be discharged from the sprinkler.
- FIG. 1 is a side elevational view of one preferred embodiment of the invention
- FIG. 2 is a view similar to FIG. 1 but as seen from the opposite side;
- FIG. 3 is a vertical sectional view taken approximately on the line 3-3 ofFIG. 1;
- FIG. 4 is a horizontal sectional view taken approximately on the line 4-4 of FIG. 1;
- FIG. 5 is a fragmentary sectional view similar to FIG. 3 showing the sprinkler in released position
- FIG. 6 is a view similar to FIG. 1 but illustrating another preferred embodiment of the invention.
- FIG. 7 is a vertical sectional view taken approximately on the line 7-7 ofFIG. 6.
- FIGS. 1 to 5 one embodiment of the sprinkler 10 is therein illustrated as having a frame 11.
- the frame 11 has an externally threaded base 12 which has a tapered vertical bore 14, and valve seat 15.
- the base 12 is of generally cylindrical configuration and has a pair of opposed arms 16 integral therewith which extend outwardly and upwardly until they converge and are connected to a crosshead 17.
- a compression screw 18 is in threaded engagement in the crosshead 17 and has a head 19 thereon and carries a baffle plate 20.
- the screw 18 has a conical terminal end 21 which is engaged in a recess 22 in plate 23 of a lever 24.
- the lever 24 has a vertical rib 25 on the side of plate 23 opposite to recess 22, a vertical plate 26 connected to plate 23, and an L-shaped plate 27 connected to the plate 26.
- a strut 30 has its rail member 31 normally retained between the rib 25 and the plate 26.
- the strut 30 is of rectangular configuration in cross section with rail member 32 parallel to and spaced from rail member 31 and with side members 23 connecting the ends of the rail members 31 and 32.
- the rail member 32 has a projection 34 which is engaged in a recess 35 of valve seat closure cap 36.
- the cap 36 on valve seat 15 has a sealing disc or plate 37 therebelow to prevent water leakage from bore 14 past seat 15.
- the strut 30 and lever 24 are normally restrained from relative movement by a transversely disposed retaining assembly 38 which extends between the inner walls 40 of side rail members 33 which are seated in a recess 41 in each side wall and is engaged by plate 27 of lever 24.
- the retaining assembly 38 is of cylindrical configuration and includes an outer tube 42, an end projection 43 as seen at left in FIG. 4, and a cavity 45, which contains a pellet 46 of eutectic fusible alloy of well-known type, which may have melting temperatures of 135, 165, 2 l 2, 286, 360, 400 or 500 as desired.
- a disc 49 retains the pellet 46 in cavity 45, and distributes the load from a ball 50 which bears against the disc 49 and is seated in one of the recesses 41.
- the sprinkler 100 has a frame 111, an externally threaded base portion 112 with a bore 114 and valve seat 115.
- the base 112 is of cylindrical configuration with a pair of opposed arms 116 extending up wardly to a crosshead 117.
- a compression screw 118 is in threaded engagement with the crosshead 117 and has a head 119 thereon which carries a baffle plate 120.
- the screw 118 has a tapered end 121 opposite to head 119, with an end recess 122 in the end 121.
- a valve closure cap 136 is provided on valve seat 115, with an interposed sealing disc or plate 137 to prevent water leakage from bore 1 14.
- the cap 136 is provided with a projection 135 thereon which is normally engaged in a recess 123 of plate 124 of a lever 125.
- the lever 125 has an end projection 134 of a strut engaged between its rib 126 and vertical plate 127, with an L-shaped portion 128 connected to the plate 127.
- the strut 130 has a plate 131 engaged in the recess 122 and has side rail members 133 connecting plates 131 and 132.
- the L-shaped portion 127 and lever 125 are normally prevented from movement by a transversely extending retaining assembly 138 which extends between the inner walls 140 of side rail members 133 in recesses 141.
- the retaining assembly 138 is of cylindrical configuration with an outer tube 142, an end projection 143 at one end of tube 142, and a cavity 145 at the other end of the tube.
- the cavity 145 contains a pellet 146 of eutectic fusible alloy of well-known type which may have melting temperatures of 135, 165, 2l2, 285, 360, 400 or 500 as-desired.
- a disc (not shown) but similar to disc 49 retains the pellet 146 in cavity 145 and distributes the force from ball in cavity 145 exerted on the disc (not shown) from the action of lever 124 trying to force it further into the cavity 145.
- valve 10 or 100 When the temperature in the vicinity of valve 10 or 100 is reached which is the melting temperature of the pellet 46 or 146 the pellet 46 or 146 collapses.
- the ball 50 or 150 moves into cavity 45 or 145 and the assembly 38 or 138, due to pressure from lever 24 or 124 moves between and through the side rail members 33 or 133.
- The'strut 30 or 130 is therefore released from recess 35 in closure cap 36 or recess 122 in screw 1 l8 permitting the closure caps 36 or 136 to move under pressure of water in bore 14 or 114 so that the water flows out past seat 15 of 115, strikes baffle plate or 120 and is dispersed.
- a sprinkler which comprises a frame
- said frame having a base with a hollow bore
- closure means for said seat normally closing said bore
- fusible retaining means engaging said lever and strut and normally preventing relative motion thereof but disengaging therefrom upon attainment of a predetennined temperatures
- said last mentioned means including an outer hollow tube having an internal cavity closed at one end by an integral strut engaging end projection, a pellet in said cavity of eutectic alloy having a predetermined melting temperature, a disc in said cavity in engagement with said pellet, and a ball in said cavity and extending outwardly therefrom for strut engagement, said lever engaging an external portion of said tube intermediate the ends of said retaining means.
Abstract
A sprinkler is provided which includes a frame, a deflector, seat closure cap, a strut and a lever bearing against the strut, which is held from seat cap release by a transversely disposed interengaged tube containing a ball and a heat-sensitive collapsible alloy element.
Description
United States Patent in] 3,625,289
[72] Inventor Fred A. Gloeckler [56] Rdenm Cited UNITED STATES PATENTS 2| 1 Appl. No. 34,184 [22] Fil d M 4, 1970 3,498,383 3/l970 Vorkapich 169/39 ,[45] Patent d I) 7, 1971 2,502,754 4/ i950 Rowley 169/38 [73] Assignee Star Sprinkler Corporation of Florida primary i Philadelphia, Pa. Assistant Examiner-Edwin D. Grant Attorney-Zachary T. Wobensmith. ll
[$4] SPRINKLER 3 Claims 7 8 ABSTRACT: A sprinkler is provided which includes a frame, a deflector, seat closure cap, a strut and a lever bearing against [52] 0.8. CI 169/39 5|] Int Cl A62c 37/08 the strut, which Is held from seat cap release by a transversely 501 Field of Search i69/38 39 dislwsed ine'engaged mining and heat'sensi' tive collapsible alloy element.
- SPRINKLER BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relatesto a sprinkler of the strut and lever type having a transverse retaining tube containing a heatresponsive alloy element, a disk and a ball engaged with and preventing lever and seat closure cap release, until predeter mined temperatures are attained.
2. Description of the Prior Art Sprinklers for water discharge havebeen in use for many years and a considerable number of different designs have been used. When working with higher water pressures which provide better dispersion of the water and therefore greater fire suppressant effect the eutectic alloys used as heat-sensitive links tend to cold-flow and permit premature unwanted release of the sprinkler valve.
The sprinkler of the invention is free from alloy cold-flow problems as the strut and lever assembly is always securely retained in place, and when released does not interfere with waterflow. The sprinkler of the invention has none of the disadvantages of prior sprinklers and has additional desirable characteristics.
SUMMARY OF THE INVENTION In accordance with the invention, a sprinkler is provided having a seat closure cap held in closed position by a strut and lever. The strut and lever are prevented from movement by a ball and a pellet of heat-sensitive material contained in a tube which pellet collapses when a predetermined temperature is reached, permits the ball to move inwardly and releases the lever, strut-and-seat closure cap to permit water to be discharged from the sprinkler.
It is the principal object of the invention to provide a sprinkler having a leverand-strut assembly that is used with high water pressure and wherein there is no premature water release due to cold-working of the eutectic alloy.
It is a further object of the invention to provide a sprinkler which is simple and inexpensive to construct but sturdy and reliable in operation.
Other objects and advantageous features of the invention will be apparent from the description and claims.
BRIEF DESCRIPTION OF THE DRAWINGS The nature and characteristic features of the invention will be more readily understood from the following description taken in connection with the accompanying drawings forming part thereof, in which:
FIG. 1 is a side elevational view of one preferred embodiment of the invention;
FIG. 2 is a view similar to FIG. 1 but as seen from the opposite side;
FIG. 3 is a vertical sectional view taken approximately on the line 3-3 ofFIG. 1;
FIG. 4 is a horizontal sectional view taken approximately on the line 4-4 of FIG. 1;
FIG. 5 is a fragmentary sectional view similar to FIG. 3 showing the sprinkler in released position;
FIG. 6 is a view similar to FIG. 1 but illustrating another preferred embodiment of the invention, and
FIG. 7 is a vertical sectional view taken approximately on the line 7-7 ofFIG. 6.
It should, of course, be understood that the description and drawings herein are illustrative merely and that various modifications and changes can be made in the structure disclosed without departing from the spirit of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now more particularly to the drawings, and FIGS. 1 to 5 thereof, one embodiment of the sprinkler 10 is therein illustrated as having a frame 11. The frame 11 has an externally threaded base 12 which has a tapered vertical bore 14, and valve seat 15.
The base 12 is of generally cylindrical configuration and has a pair of opposed arms 16 integral therewith which extend outwardly and upwardly until they converge and are connected to a crosshead 17. A compression screw 18 is in threaded engagement in the crosshead 17 and has a head 19 thereon and carries a baffle plate 20. The screw 18 has a conical terminal end 21 which is engaged in a recess 22 in plate 23 of a lever 24. The lever 24 has a vertical rib 25 on the side of plate 23 opposite to recess 22, a vertical plate 26 connected to plate 23, and an L-shaped plate 27 connected to the plate 26. A strut 30 has its rail member 31 normally retained between the rib 25 and the plate 26.
The strut 30 is of rectangular configuration in cross section with rail member 32 parallel to and spaced from rail member 31 and with side members 23 connecting the ends of the rail members 31 and 32. The rail member 32 has a projection 34 which is engaged in a recess 35 of valve seat closure cap 36. The cap 36 on valve seat 15 has a sealing disc or plate 37 therebelow to prevent water leakage from bore 14 past seat 15. The strut 30 and lever 24 are normally restrained from relative movement by a transversely disposed retaining assembly 38 which extends between the inner walls 40 of side rail members 33 which are seated in a recess 41 in each side wall and is engaged by plate 27 of lever 24. The retaining assembly 38 is of cylindrical configuration and includes an outer tube 42, an end projection 43 as seen at left in FIG. 4, and a cavity 45, which contains a pellet 46 of eutectic fusible alloy of well-known type, which may have melting temperatures of 135, 165, 2 l 2, 286, 360, 400 or 500 as desired.
A disc 49 retains the pellet 46 in cavity 45, and distributes the load from a ball 50 which bears against the disc 49 and is seated in one of the recesses 41.
Referring now to FIGS. 6 and 7, another preferred embodi ment of the sprinkler is illustrated. The sprinkler 100 has a frame 111, an externally threaded base portion 112 with a bore 114 and valve seat 115. The base 112 is of cylindrical configuration with a pair of opposed arms 116 extending up wardly to a crosshead 117. A compression screw 118 is in threaded engagement with the crosshead 117 and has a head 119 thereon which carries a baffle plate 120. The screw 118 has a tapered end 121 opposite to head 119, with an end recess 122 in the end 121.
A valve closure cap 136 is provided on valve seat 115, with an interposed sealing disc or plate 137 to prevent water leakage from bore 1 14. The cap 136 is provided with a projection 135 thereon which is normally engaged in a recess 123 of plate 124 of a lever 125. The lever 125 has an end projection 134 of a strut engaged between its rib 126 and vertical plate 127, with an L-shaped portion 128 connected to the plate 127. The strut 130 has a plate 131 engaged in the recess 122 and has side rail members 133 connecting plates 131 and 132.
The L-shaped portion 127 and lever 125 are normally prevented from movement by a transversely extending retaining assembly 138 which extends between the inner walls 140 of side rail members 133 in recesses 141.
The retaining assembly 138 is of cylindrical configuration with an outer tube 142, an end projection 143 at one end of tube 142, and a cavity 145 at the other end of the tube. The cavity 145 contains a pellet 146 of eutectic fusible alloy of well-known type which may have melting temperatures of 135, 165, 2l2, 285, 360, 400 or 500 as-desired. A disc (not shown) but similar to disc 49 retains the pellet 146 in cavity 145 and distributes the force from ball in cavity 145 exerted on the disc (not shown) from the action of lever 124 trying to force it further into the cavity 145.
The mode of operation will now be pointed out.
When the temperature in the vicinity of valve 10 or 100 is reached which is the melting temperature of the pellet 46 or 146 the pellet 46 or 146 collapses. The ball 50 or 150 moves into cavity 45 or 145 and the assembly 38 or 138, due to pressure from lever 24 or 124 moves between and through the side rail members 33 or 133.
The'strut 30 or 130 is therefore released from recess 35 in closure cap 36 or recess 122 in screw 1 l8 permitting the closure caps 36 or 136 to move under pressure of water in bore 14 or 114 so that the water flows out past seat 15 of 115, strikes baffle plate or 120 and is dispersed.
It will thus be seen that apparatus has been provided with which the objects of the invention are attained.
I claim:
1. A sprinkler which comprises a frame,
a deflector mounted adjacent said frame,
said frame having a base with a hollow bore,
a valve seat at the outer end of said bore,
closure means for said seat normally closing said bore,
a compression screw carried by said frame,
a lever and strut in engagement therewith interposed between said closure means and said compression screw and normally retaining said closure means in seated relation to said bore, and
horizontally transversely disposed fusible retaining means engaging said lever and strut and normally preventing relative motion thereof but disengaging therefrom upon attainment of a predetennined temperatures, said last mentioned means including an outer hollow tube having an internal cavity closed at one end by an integral strut engaging end projection, a pellet in said cavity of eutectic alloy having a predetermined melting temperature, a disc in said cavity in engagement with said pellet, and a ball in said cavity and extending outwardly therefrom for strut engagement, said lever engaging an external portion of said tube intermediate the ends of said retaining means. 2. A sprinkler as defined in claim 1 in which said screw is in engagement with said strut and said closure means has said lever engaged therewith. 3. A sprinkler as defined in claim 1 in which said screw is in engagement with said lever, and said closure means has said strut engaged therewith.
t t l
Claims (3)
1. A sprinkler which comprises a frame, a deflector mounted adjacent said frame, said frame having a base with a hollow bore, a valve seat at the outer end of said bore, closure means for said seat normally closing said bore, a compression screw carried by said frame, a lever and strut in engagement therewith interposed between said closure means and said compression screw and normally retaining said closure means in seated relation to said bore, and horizontally transversely disposed fusible retaining means engaging said lever and strut and normally preventing relative motion thereof but disengaging therefrom upon attainment of a predetermined temperature, said last mentioned means including an outer hollow tube having an internal cavity closed at one end by an integral strut engaging end projection, a pellet in said cavity of eutectic alloy having a predetermined melting temperature, a disc in said cavity in engagement with said pellet, and a ball in said cavity and extending outwardly therefrom for strut engagement, said lever engaging an external portion of said tube intermediate the ends of said retaining means.
2. A sprinkler as defined in claim 1 in which said screw is in engagement with said strut and said closure means has said lever engaged therewith.
3. A sprinkler as defined in claim 1 in which said screw is in engagement with said lever, and said closure means has said strut engaged therewith.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3418470A | 1970-05-04 | 1970-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3625289A true US3625289A (en) | 1971-12-07 |
Family
ID=21874826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US34184A Expired - Lifetime US3625289A (en) | 1970-05-04 | 1970-05-04 | Sprinkler |
Country Status (1)
Country | Link |
---|---|
US (1) | US3625289A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874456A (en) * | 1972-09-12 | 1975-04-01 | Star Sprinkler Corp Of Florida | Sprinkler |
FR2305240A1 (en) * | 1975-03-25 | 1976-10-22 | Grunau Co Inc | SPRAY HEAD |
US4029150A (en) * | 1976-03-05 | 1977-06-14 | A-T-O Inc. | Sprinkler |
US4109727A (en) * | 1975-09-06 | 1978-08-29 | Job Eduard J | Dual-seal sprinkler system |
US4176719A (en) * | 1976-03-12 | 1979-12-04 | Mather & Platt Limited | Heat sensitive release devices |
US4440234A (en) * | 1975-06-11 | 1984-04-03 | The Reliable Automatic Sprinkler Company, Inc. | Sprinkler |
US6114823A (en) * | 1997-12-30 | 2000-09-05 | Agf Manufacturing, Inc. | Circuit and apparatus for sensing fluid flow |
US6246331B1 (en) | 1999-01-05 | 2001-06-12 | Agf Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
US6396404B1 (en) | 1999-01-05 | 2002-05-28 | Agf Manufacturing, Inc. | Double check valve assembly for fire suppression system |
US6497200B2 (en) | 2001-03-08 | 2002-12-24 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with combustion chamber temperature-sensing combustion air shutoff system |
US20030196609A1 (en) * | 2001-03-08 | 2003-10-23 | Stretch Gordon W. | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US6715451B2 (en) | 2001-03-08 | 2004-04-06 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with combustion air shutoff system having frangible temperature sensing structure |
US20060070745A1 (en) * | 2004-10-06 | 2006-04-06 | The Reliable Automatic Sprinkler Co., Inc. | Modular release mechanism for fire protection sprinklers |
US8122969B1 (en) | 2000-11-22 | 2012-02-28 | Tyco Fire Products Lp | Low pressure, extended coverage, fire protection sprinkler |
US8176988B2 (en) | 1998-05-15 | 2012-05-15 | Tyco Fire Products Lp | Early suppression fast response fire protection sprinkler |
US8327946B1 (en) | 2002-07-19 | 2012-12-11 | Tyco Fire Products Lp | Dry sprinkler |
US8469112B1 (en) | 2002-07-19 | 2013-06-25 | Tyco Fire Products Lp | Dry sprinkler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502754A (en) * | 1946-04-19 | 1950-04-04 | Globe Automatic Sprinkler Co | Sprinkler head |
US3498383A (en) * | 1967-12-15 | 1970-03-03 | Automatic Sprinkler Corp | Center strut sprinkler assembly |
-
1970
- 1970-05-04 US US34184A patent/US3625289A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502754A (en) * | 1946-04-19 | 1950-04-04 | Globe Automatic Sprinkler Co | Sprinkler head |
US3498383A (en) * | 1967-12-15 | 1970-03-03 | Automatic Sprinkler Corp | Center strut sprinkler assembly |
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874456A (en) * | 1972-09-12 | 1975-04-01 | Star Sprinkler Corp Of Florida | Sprinkler |
FR2305240A1 (en) * | 1975-03-25 | 1976-10-22 | Grunau Co Inc | SPRAY HEAD |
US4376465A (en) * | 1975-03-25 | 1983-03-15 | Grunau Company Co. | Sprinkler head |
US4440234A (en) * | 1975-06-11 | 1984-04-03 | The Reliable Automatic Sprinkler Company, Inc. | Sprinkler |
US4109727A (en) * | 1975-09-06 | 1978-08-29 | Job Eduard J | Dual-seal sprinkler system |
US4029150A (en) * | 1976-03-05 | 1977-06-14 | A-T-O Inc. | Sprinkler |
US4176719A (en) * | 1976-03-12 | 1979-12-04 | Mather & Platt Limited | Heat sensitive release devices |
US6114823A (en) * | 1997-12-30 | 2000-09-05 | Agf Manufacturing, Inc. | Circuit and apparatus for sensing fluid flow |
US8485270B2 (en) | 1998-05-15 | 2013-07-16 | Tyco Fire Products Lp | Early suppression fast response fire protection sprinkler |
US8176988B2 (en) | 1998-05-15 | 2012-05-15 | Tyco Fire Products Lp | Early suppression fast response fire protection sprinkler |
US8186448B2 (en) | 1998-05-15 | 2012-05-29 | Tyco Fire Products Lp | Early suppression fast response fire protection sprinkler |
US6246331B1 (en) | 1999-01-05 | 2001-06-12 | Agf Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
US6396404B1 (en) | 1999-01-05 | 2002-05-28 | Agf Manufacturing, Inc. | Double check valve assembly for fire suppression system |
US6246333B1 (en) | 1999-01-05 | 2001-06-12 | Agf Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
US8899341B1 (en) | 2000-11-22 | 2014-12-02 | Tyco Fire Products Lp | Low pressure, extended coverage, fire protection sprinkler |
US8839877B1 (en) | 2000-11-22 | 2014-09-23 | Tyco Fire Products Lp | Low pressure, extended coverage, fire protection sprinkler |
US8657020B1 (en) | 2000-11-22 | 2014-02-25 | Tyco Fire Products Lp | Low pressure, extended coverage, fire protection sprinkler |
US8925641B1 (en) | 2000-11-22 | 2015-01-06 | Tyco Fire Products Lp | Low pressure, extended coverage, fire protection sprinkler |
US8122969B1 (en) | 2000-11-22 | 2012-02-28 | Tyco Fire Products Lp | Low pressure, extended coverage, fire protection sprinkler |
US20050053879A1 (en) * | 2001-03-08 | 2005-03-10 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US6776125B2 (en) | 2001-03-08 | 2004-08-17 | The Water Heater Industry Joint Research And Development Consortium | Methods of operating a fuel-fired heating apparatus |
US6964248B2 (en) | 2001-03-08 | 2005-11-15 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US6497200B2 (en) | 2001-03-08 | 2002-12-24 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with combustion chamber temperature-sensing combustion air shutoff system |
US6893253B2 (en) | 2001-03-08 | 2005-05-17 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US20050042560A1 (en) * | 2001-03-08 | 2005-02-24 | The Water Heater Industry Joint Research And Development Consortium. | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US6814031B2 (en) | 2001-03-08 | 2004-11-09 | The Water Heater Industry Joint Research And Development Consortium | Combustion air shutoff apparatus for a fuel-fired heating appliance |
US20030196609A1 (en) * | 2001-03-08 | 2003-10-23 | Stretch Gordon W. | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US6715451B2 (en) | 2001-03-08 | 2004-04-06 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with combustion air shutoff system having frangible temperature sensing structure |
US6957628B2 (en) | 2001-03-08 | 2005-10-25 | The Water Heater Industry Joint Research And Development Consortium | Fuel-fired heating appliance with temperature-based fuel shutoff system |
US20040069247A1 (en) * | 2001-03-08 | 2004-04-15 | The Water Heater Industry Joint Research And Development Consortium | Methods of operating a fuel-fired heating apparatus |
US8528653B1 (en) | 2002-07-19 | 2013-09-10 | Tyco Fire Products Lp | Dry sprinkler |
US8746356B1 (en) | 2002-07-19 | 2014-06-10 | Tyco Fire Products Lp | Dry Sprinkler |
US8469112B1 (en) | 2002-07-19 | 2013-06-25 | Tyco Fire Products Lp | Dry sprinkler |
US8327946B1 (en) | 2002-07-19 | 2012-12-11 | Tyco Fire Products Lp | Dry sprinkler |
US9636531B1 (en) | 2002-07-19 | 2017-05-02 | Tyco Fire Products Lp | Dry sprinkler |
US10195473B1 (en) | 2002-07-19 | 2019-02-05 | Tyco Fire Products Lp | Dry sprinkler |
US20060070745A1 (en) * | 2004-10-06 | 2006-04-06 | The Reliable Automatic Sprinkler Co., Inc. | Modular release mechanism for fire protection sprinklers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3625289A (en) | Sprinkler | |
US3638733A (en) | Heat operated fire extinguisher | |
US3633676A (en) | Flush-type sprinkler | |
US4596289A (en) | Quick response automatic fire sprinkler head | |
US3714989A (en) | Flush type sprinkler | |
US2862565A (en) | Automatic sprinkler | |
EP0306500B1 (en) | A decorative quick response sprinkler | |
KR101212984B1 (en) | Smart head automatic Operating Means for Extinguisher | |
CN112023314B (en) | Fire control shower nozzle that can used repeatedly | |
US4623023A (en) | Sprinkler head | |
US5494114A (en) | Fire extinguisher sprinkler construction | |
US3874456A (en) | Sprinkler | |
US5299645A (en) | Fire extinguisher sprinkler construction | |
US2664956A (en) | Sprinkler head | |
US4664198A (en) | Straight-on fire sprinkler with improved valve locking mechanism | |
US2004833A (en) | Sprinkler head for fire-extinguishing systems | |
US4570720A (en) | Sprinkler head | |
US4376465A (en) | Sprinkler head | |
KR20090096027A (en) | Sprinkler head | |
US3161236A (en) | Sprinkler head | |
US4785888A (en) | Decorative quick response sprinkler | |
US4029150A (en) | Sprinkler | |
KR20090096022A (en) | Sprinkler head | |
US3877527A (en) | Thermally insulated actuator for fire sprinkler heads | |
US1736256A (en) | Sprinkler head |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHEMETRON FIRE SYSTEMS, INC., ROUTE 50 & GOVERNORS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHEMETRON CORPORATION, A DE CORP.;REEL/FRAME:004050/0810 Effective date: 19820928 |
|
AS | Assignment |
Owner name: GRUNAU SPRINKLER MANUFACTURING COMPANY, INC., 2205 Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHEMETRON FIRE SYSTEMS, INC.;REEL/FRAME:004193/0329 Effective date: 19831109 |