US3769773A - Collapsible door-fitting frame - Google Patents

Collapsible door-fitting frame Download PDF

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US3769773A
US3769773A US00259772A US3769773DA US3769773A US 3769773 A US3769773 A US 3769773A US 00259772 A US00259772 A US 00259772A US 3769773D A US3769773D A US 3769773DA US 3769773 A US3769773 A US 3769773A
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frame
vertical
tiered
horizontal
door
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US00259772A
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M Mochizuki
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/04—Frames for doors, windows, or the like to be fixed in openings
    • E06B1/12—Metal frames
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E06B3/988—Corner joints or edge joints for windows, doors, or the like frames or wings specially adapted for sheet metal frame members with an open U-shaped cross-section

Definitions

  • the present invention permits a doorfitting frame to be transported or carried in a disassembled state to the place of work where the frame components are assembled into a finished rectangular frame without requiring a welding work.
  • the present invention relates to a door-fitting frame of collapsible type which is mountable in a concrete wall to be fitted later with a door and the present invention has for an object to provide a door-fitting frame which is easily and economically transportable. Another object of the invention is to provide a door-fitting frame which is of simple construction and easy fabrication and a still further object is to provide a frame which has reinforced joints.
  • FIG. 1 represents a perspective view, partly in section and exploded, of a door-fitting frame under the present invention.
  • the frame of the pres ent invention is composed of right and left vertical frame members A A of identicafshape, all of which being made ofC-shaped convex steel constructed such that it has a flat-topped raised part 1 running longitudinally and centrally thereof over its total length, oppositely disposed tiered parts 2 2 on its both sides, inwardly bent edges 3 3 formed at the outer ends of the said tiered parts 2 2 respectively by bending the ends of the respective tiered parts twice at right angles with the result that the end of each said tiered part is formed into an inwardly projecting edge underneath said part 2.
  • the above frame members made of C-shaped convex steel are open at their rear side.
  • Both ends of the vertical frame member A are left in transversely-cut section and, on the raised part 1 at a position close to said ends of the vertical member A are provided a set of opposed up-turned hook means 4 4 formed by slitting and then raising part of surface of the raised part 1.
  • an indent S by cutting off the end of its flattopped raised part 1, which will accommodate the raised part 1 of the vertical member A therein.
  • an end cover plate 6 Secured to the cut end of said indent 5 by mean of welding is an end cover plate 6 which carriesa pair of opposed cutouts 6' 6 to be engaged by the hook means 4 4 formed on said vertical frame member A.
  • This end cover 6 may be formed by bending downwardly and then welding to the indented end 5, the end surface of the raised part 1 after slit at both sides, instead of its being cut off when the indent 5 is provided.
  • end covers 7 7 are rigidly fixed, by means of welding, onto a pair of opposed openings or holes formed by and between the projecting tiered parts'2 2 and bent edges 3 3 of the frame member B, since, by so doing, strong link or joint can be obtained in subsequent framing work at which time the ends of the tiered part 2 2 of the vertical member A contact said end covers 7 7 closely to provide strong linking.
  • the provision of end covers also serves to facilitate rigid linking by means of screw means as explained later.
  • the linking or union of the vertical frame members A A and horizontal members B B is effected in the following manner.
  • the ends of the vertical members B B are brought into contact with the upper and lower ends respectively of the horizontal members A A so that the end surface of the tiered parts 2 2 and the inwardly bent edges 3 3 of the members B B knock against the tiered parts 2 2 of the vertical members A A, whereupon the raised part 1 of the vertical members A A engages in the indent 5 of the horizontal member B B, and simultaneously the cut-outs 6' 6' of the end cover 6 secured on the indent 5 are engaged by the up-turned hooks 4 4 of the raised part 1 of the vertical member A.
  • the rectangular support frame thus assembled is sufficiently secure and rigid not only because of engagement of the raised part 1 of the vertical frame members A A in the indent 5 of the horizontal frame members B B but also due to the firm engagement of the hook means 4 4 of .the vertical members A A into the cutouts 6 6' of the vertical members B B. If, however, more secure and stronger union of the frame members is desired, the end cover plates 6 and7 of the horizontal members B B may be united with the oppositelylocated raised part1 and tiered parts-2 2 respectively by means of a screw 8. 9 indicates a hole through which the screw 8 is driven. i
  • the raised sides 1 of the four convex frame members A A B B con stituting the frame face inward and their open back sides C outward.
  • the doorfitting frame is mounted loosely in a door opening provided in a concrete wall and then concrete isfpoured in the opening of the back side C of each frame member contacting the edge of the door opening until it fills up all the space between the frame and the edges of the door opening, whereupon the back sides of the frame members are buried completely in the concrete, thereby giving an appearance as if the frame were fitted in the concrete wall from the beginning.
  • the door-fitting frame under the present invention gives an advantage over the known type in that the former was designed to be collapsible, thereby making it possible to transport the frame in a disassembled state and fabricate the component parts i.e. members A B into a rectangular form after delivered to the place of work.
  • this new frame is of easy fabrication in that it is fabricated simply by placing the end surface of the horizontal frame member B on the end portion of the vertical member A and engaging the hook means 4 of the member A into the cut-out 6' of the member B. Still further, by reinforcing the joints of the frame members A B by a screw after assembled, stronger union can be obtained.
  • a door-fitting frame of collapsible type comprising right and left vertical frame component members of identical C-shaped convex steel consisting of flattopped raised part formed longitudinally and centrally, a tiered flat part formed on both sides of the raised part, an inwardly extending edge formed at the outer edge of each said tiered part by bending the outer edge of said tiered part twice at right angles, a pair of 0pposed up-turned hook or catch members provided on said raised part at a position close to the upper and lower ends of each vertical member, upper and lower horizontal component members of a shape similar to that of said vertical frame members, an indent formed at both ends of each said horizontal member by cutting off the end of its raised part, an end cover plate rigidly secured to the end surface of said indent, said cover plate carrying cut-outs to be engaged by said hook or catch members so that a rectangular frame may be fabricated by bringing both ends of each horizontal member into contact with the upper and lower ends of each vertical member and having the ends of the tiered part and bent edge of the horizontal

Abstract

This invention provides a door-fitting frame of collapsible type which is mounted securely in a door opening provided in a concrete wall and in which a door is fitted later. This frame, very simple in construction and easy in fabrication, offers an advantage over the known rigid type in that it is transportable in a disassembled state and the necessary assembly or fabrication work is done after the component parts are transported to the place of work.

Description

United States Patent 1191 Mochizuki Nov. 6, 1973 [54] COLLAPSIBLE DOOR-FITTING FRAME 2,652,907 9/1953 Miller 52/213 X 2,776,030 1/1957 Bush 287/l89.36 H Invent 'y 2,869,695 1/1959 Herr et al. 52/211 Kam1kosakamach1 3-chome, Hgashlosaka Japan Primary Examiner-Kenneth Downey [22] Filed; J 5, 1972 Attorney-Holman & Stern This invention provides a door-fitting frame of collaps- [52] US. Cl 52/656, 49/504, 52/213, ible type which is mounted securely in a door opening 52/2l l, 287/l89.36 H provided in a concrete wall and in which a door is fitted [51] Int. Cl. E04c 2/38 later. This frame, very simple in construction and easy [58] Field of Search 49/504, 382; 52/21 1, in fabrication, offers an advantage over the known rigid 52/213, 216, 217, 656 type in that it is transportable in a disassembled state 1 and the necessary assembly or fabrication work is done [56] References-Cited after the component parts are transported to the place UNITED STATES PATENTS of Work- 2,619,687 12/1952 4 Claims, 1 Drawing Figure Kahn 52/217 1 COLLAPSIBLE DOOR-FITTING FRAME BACKGROUND OF THE INVENTION Whereas up to present, these door-fitting frames have been made by welding vertical and horizontal frame members at their both ends to be framed into a rectangular shape, it had a drawback in that the transportation of such a rigid rectangular frame was both inconvenient and uneconomical.
Under the present invention, however, it has become possible to provide a door-fitting frame of collapsible type by fabrication or assembly work, thereby overcoming the drawback encountered with the known type of frame. The present invention permits a doorfitting frame to be transported or carried in a disassembled state to the place of work where the frame components are assembled into a finished rectangular frame without requiring a welding work. I
SUMMARY OF THE INVENTION The present invention relates to a door-fitting frame of collapsible type which is mountable in a concrete wall to be fitted later with a door and the present invention has for an object to provide a door-fitting frame which is easily and economically transportable. Another object of the invention is to provide a door-fitting frame which is of simple construction and easy fabrication and a still further object is to provide a frame which has reinforced joints.
The nature and advantages of the present invention will be known more clearly from the following descriptions made with reference to the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 represents a perspective view, partly in section and exploded, of a door-fitting frame under the present invention. I
DETAILED DESCRIPTION OF THE INVENTION Referring now to the drawing, the frame of the pres ent invention is composed of right and left vertical frame members A A of identicafshape, all of which being made ofC-shaped convex steel constructed such that it has a flat-topped raised part 1 running longitudinally and centrally thereof over its total length, oppositely disposed tiered parts 2 2 on its both sides, inwardly bent edges 3 3 formed at the outer ends of the said tiered parts 2 2 respectively by bending the ends of the respective tiered parts twice at right angles with the result that the end of each said tiered part is formed into an inwardly projecting edge underneath said part 2. The above frame members made of C-shaped convex steel are open at their rear side.
Both ends of the vertical frame member A are left in transversely-cut section and, on the raised part 1 at a position close to said ends of the vertical member A are provided a set of opposed up-turned hook means 4 4 formed by slitting and then raising part of surface of the raised part 1.
At each endof the horizontal frame member B is formed an indent S by cutting off the end of its flattopped raised part 1, which will accommodate the raised part 1 of the vertical member A therein. Secured to the cut end of said indent 5 by mean of welding is an end cover plate 6 which carriesa pair of opposed cutouts 6' 6 to be engaged by the hook means 4 4 formed on said vertical frame member A. This end cover 6 may be formed by bending downwardly and then welding to the indented end 5, the end surface of the raised part 1 after slit at both sides, instead of its being cut off when the indent 5 is provided.
It is also desirable that end covers 7 7 are rigidly fixed, by means of welding, onto a pair of opposed openings or holes formed by and between the projecting tiered parts'2 2 and bent edges 3 3 of the frame member B, since, by so doing, strong link or joint can be obtained in subsequent framing work at which time the ends of the tiered part 2 2 of the vertical member A contact said end covers 7 7 closely to provide strong linking. The provision of end covers also serves to facilitate rigid linking by means of screw means as explained later.
The linking or union of the vertical frame members A A and horizontal members B B is effected in the following manner. The ends of the vertical members B B are brought into contact with the upper and lower ends respectively of the horizontal members A A so that the end surface of the tiered parts 2 2 and the inwardly bent edges 3 3 of the members B B knock against the tiered parts 2 2 of the vertical members A A, whereupon the raised part 1 of the vertical members A A engages in the indent 5 of the horizontal member B B, and simultaneously the cut-outs 6' 6' of the end cover 6 secured on the indent 5 are engaged by the up-turned hooks 4 4 of the raised part 1 of the vertical member A.
The rectangular support frame thus assembled is sufficiently secure and rigid not only because of engagement of the raised part 1 of the vertical frame members A A in the indent 5 of the horizontal frame members B B but also due to the firm engagement of the hook means 4 4 of .the vertical members A A into the cutouts 6 6' of the vertical members B B. If, however, more secure and stronger union of the frame members is desired, the end cover plates 6 and7 of the horizontal members B B may be united with the oppositelylocated raised part1 and tiered parts-2 2 respectively by means of a screw 8. 9 indicates a hole through which the screw 8 is driven. i
' In the door-fitting frame thus completed, the raised sides 1 of the four convex frame members A A B B con stituting the frame face inward and their open back sides C outward. Under this arrangement, the doorfitting frame is mounted loosely in a door opening provided in a concrete wall and then concrete isfpoured in the opening of the back side C of each frame member contacting the edge of the door opening until it fills up all the space between the frame and the edges of the door opening, whereupon the back sides of the frame members are buried completely in the concrete, thereby giving an appearance as if the frame were fitted in the concrete wall from the beginning. In this way, the
mounting of the frame in the door opening is effected.
The operation of fitting a door to the frame thus mounted in the wall is accomplished by a set of hinges provided at the outer edge of the tiered part 2 of the vertical frame member A.
As described hereinbefore, whereas the known type of a door-fitting frame in which a rectangular frame was formed rigidly by welding the joints of the frame component members presented a disadvantage in transportation, the door-fitting frame under the present invention gives an advantage over the known type in that the former was designed to be collapsible, thereby making it possible to transport the frame in a disassembled state and fabricate the component parts i.e. members A B into a rectangular form after delivered to the place of work.
Furthermore, this new frame is of easy fabrication in that it is fabricated simply by placing the end surface of the horizontal frame member B on the end portion of the vertical member A and engaging the hook means 4 of the member A into the cut-out 6' of the member B. Still further, by reinforcing the joints of the frame members A B by a screw after assembled, stronger union can be obtained.
I claim 1. A door-fitting frame of collapsible type comprising right and left vertical frame component members of identical C-shaped convex steel consisting of flattopped raised part formed longitudinally and centrally, a tiered flat part formed on both sides of the raised part, an inwardly extending edge formed at the outer edge of each said tiered part by bending the outer edge of said tiered part twice at right angles, a pair of 0pposed up-turned hook or catch members provided on said raised part at a position close to the upper and lower ends of each vertical member, upper and lower horizontal component members of a shape similar to that of said vertical frame members, an indent formed at both ends of each said horizontal member by cutting off the end of its raised part, an end cover plate rigidly secured to the end surface of said indent, said cover plate carrying cut-outs to be engaged by said hook or catch members so that a rectangular frame may be fabricated by bringing both ends of each horizontal member into contact with the upper and lower ends of each vertical member and having the ends of the tiered part and bent edge of the horizontal member also in contact with the tiered parts of the vertical member, thereby causing the raised part of the vertical member to engage in the indent of the horizontal member and causing the hook means of the vertical member to engage in the cut-outs of the horizontal member, whereupon the vertical and horizontal frame members are firmly joined at their ends to form a rectangular frame.
2. A door-fitting frame of the type claimed in claim 1, in which the end of the raised part of the vertical frame member and the oppositely located end cover of the indent of the horizontal frame member are secured together rigidly by means of a screw.
3. A door-fitting frame of the type claimed in claim 1, in which a cover plate is fixed onto the end surface defined by and between the projecting ends of the tiered part and inwardly bent part of the horizontal frame member which contact the tiered part of the vertical frame member.
4. A door-fitting frame of the type claimed in claim 3, in which the cover plate fixed onto the projecting ends of the tiered part and inwardly bent part of the horizontal frame member and also the oppositely located end of tiered part of the vertical frame member are secured together rigidly by means of a screw.

Claims (4)

1. A door-fitting frame of collapsible type comprising right and left vertical frame component members of identical C-shaped convex steel consisting of flat-topped raised part formed longitudinally and centrally, a tiered flat part formed on both sides of the raised part, an inwardly extending edge formed at the outer edge of each said tiered part by bending the outer edge of said tiered part twice at right angles, a pair of opposed upturned hook or catch members provided on said raised part at a position close to the upper and lower ends of each vertical member, upper and lower horizontal component members of a shape similar to that of said vertical frame members, an indent formed at both ends of each said horizontal member by cutting off the end of its raised part, an end cover plate rigidly secured to the end surface of said indent, said cover plate carrying cut-outs to be engaged by said hook or catch members so that a rectangular frame may be fabricated by bringing both ends of each horizontal member into contact with the upper and lower ends of each vertical member and having the ends of the tiered part and bent edge of the horizontal member also in contact with the tiered parts of the vertical member, thereby causing the raised part of the vertical member to engage in the indent of the horizontal member and causing the hook means of the vertical member to engage in the cut-outs of the horizontal member, whereupon the vertical and horizontal frame members are firmly joined at their ends to form a rectangular frame.
2. A door-fitting frame of the type claimed in claim 1, in which the end of the raised part of the vertical frame member and the oppositely located end cover of the indent of the horizontal frame member are secured together rigidly by means of a screw.
3. A door-fitting frame of the type claimed in claim 1, in which a cover plate is fixed onto the end surface defined by and between the projecting ends of the tiered part and inwardly bent part of the horizontal frame member which contact the tiered part of the vertical frame member.
4. A door-fitting frame of the type claimed in claim 3, in which the cover plate fixed onto the projecting ends of the tiered part and inwardly bent part of the horizontal frame member and also the oppositely located end of tiered part of the vertical frame member are secured together rigidly by means of a screw.
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US3869840A (en) * 1972-07-31 1975-03-11 Helmut Hoffmann Door jamb liner
US4015382A (en) * 1976-08-10 1977-04-05 Fenestra Reinforced door frame
US4067157A (en) * 1974-09-23 1978-01-10 Catnic Components Limited Elements for forming frames
US4308692A (en) * 1979-06-21 1982-01-05 Rumble Roy W Door frame kit
US4509294A (en) * 1980-07-04 1985-04-09 Fernand Flamand Ltee Door frame assembly
US4562677A (en) * 1983-11-03 1986-01-07 Stavebni Strojirenstvi A Lehka Prefabrikace Generalni Reditelstvi Metal door frame constructed of a channel section and method of making same
US4589229A (en) * 1981-01-07 1986-05-20 Warren Lawrence L Adjustable door jamb assembly
US5155956A (en) * 1990-03-13 1992-10-20 Norment Industries, Inc. Metal window construction
EP0538953A1 (en) * 1991-10-21 1993-04-28 Berkvens Houtindustrie Nederland Beheer B.V. Frame for in situ assembly
US5465540A (en) * 1993-12-28 1995-11-14 Fypon Inc. Facade structure for windows
US5581953A (en) * 1995-05-31 1996-12-10 Ingersoll-Rand Metal frame assembly
US5630302A (en) * 1996-02-02 1997-05-20 Morgan Marshall Industries, Inc. Fitting room
US5653074A (en) * 1993-06-29 1997-08-05 Yoon; Suk Kyu Doorframe
US5661943A (en) * 1996-03-08 1997-09-02 Burns, Morris & Stewart Limited Partnership Frame with integral environment resistant members
US5689922A (en) * 1995-01-31 1997-11-25 Dietrich Industries, Inc. Structural framing system
US5832670A (en) * 1997-07-11 1998-11-10 Bennett; Laurence E. Pre-hung door kit with selectively reversible hand
US5873209A (en) * 1996-03-08 1999-02-23 Burns, Morris & Stewart Limited Partnership Frame with integral environment resistant members
US6041565A (en) * 1996-05-13 2000-03-28 Inventio Ag Door frame
US6192638B1 (en) * 1998-11-26 2001-02-27 Guo-Chi Wang Knockdown doorframe and building method thereof
US6293060B1 (en) * 1999-05-25 2001-09-25 Therma-Tru Technologies Incorporated Door frame with securing and sealing flange
US6343448B1 (en) * 2000-02-28 2002-02-05 Chun-Chen Lin Auxiliary frame for improving conventional frame and method for working the same
US6405506B2 (en) 1998-03-23 2002-06-18 Ingersoll-Rand Company Door frame for metal buildings
US6425222B1 (en) 1996-03-08 2002-07-30 Burns Norris & Stewart Limited Partnership Method and kit for repairing a construction component
US20020170240A1 (en) * 2001-05-07 2002-11-21 L & P Property Management Company Modular room system and method
US6491286B1 (en) * 1999-05-26 2002-12-10 Vinyl Industries, Inc. Knocked-down, rigid, sheathed, gate frame
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US20120096783A1 (en) * 2010-10-20 2012-04-26 Radenko Zrnic Frame assembly for a doorway
US20130199114A1 (en) * 2012-02-06 2013-08-08 Isaac Ben Ezra Door frame and threshold
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US2776030A (en) * 1953-12-23 1957-01-01 William W Bush Interlocking joint for angle irons
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US2652907A (en) * 1947-04-12 1953-09-22 Firecraft Corp Knockdown reversible hollow metal doorframe
US2619687A (en) * 1949-06-01 1952-12-02 Alumiline Corp Door frame with adjustable head
US2776030A (en) * 1953-12-23 1957-01-01 William W Bush Interlocking joint for angle irons
US2869695A (en) * 1956-01-17 1959-01-20 American Welding & Mfg Company Knock-down door frame

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869840A (en) * 1972-07-31 1975-03-11 Helmut Hoffmann Door jamb liner
US4067157A (en) * 1974-09-23 1978-01-10 Catnic Components Limited Elements for forming frames
US4015382A (en) * 1976-08-10 1977-04-05 Fenestra Reinforced door frame
US4308692A (en) * 1979-06-21 1982-01-05 Rumble Roy W Door frame kit
US4509294A (en) * 1980-07-04 1985-04-09 Fernand Flamand Ltee Door frame assembly
US4589229A (en) * 1981-01-07 1986-05-20 Warren Lawrence L Adjustable door jamb assembly
US4562677A (en) * 1983-11-03 1986-01-07 Stavebni Strojirenstvi A Lehka Prefabrikace Generalni Reditelstvi Metal door frame constructed of a channel section and method of making same
US5155956A (en) * 1990-03-13 1992-10-20 Norment Industries, Inc. Metal window construction
EP0538953A1 (en) * 1991-10-21 1993-04-28 Berkvens Houtindustrie Nederland Beheer B.V. Frame for in situ assembly
US5653074A (en) * 1993-06-29 1997-08-05 Yoon; Suk Kyu Doorframe
US5465540A (en) * 1993-12-28 1995-11-14 Fypon Inc. Facade structure for windows
US5689922A (en) * 1995-01-31 1997-11-25 Dietrich Industries, Inc. Structural framing system
US5581953A (en) * 1995-05-31 1996-12-10 Ingersoll-Rand Metal frame assembly
US5630302A (en) * 1996-02-02 1997-05-20 Morgan Marshall Industries, Inc. Fitting room
US5661943A (en) * 1996-03-08 1997-09-02 Burns, Morris & Stewart Limited Partnership Frame with integral environment resistant members
US5873209A (en) * 1996-03-08 1999-02-23 Burns, Morris & Stewart Limited Partnership Frame with integral environment resistant members
US6694696B2 (en) 1996-03-08 2004-02-24 Burns, Morris & Stewart Limited Partnership Method and kit for repairing a construction component
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