US3921346A - Fire retardant shaft wall - Google Patents

Fire retardant shaft wall Download PDF

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Publication number
US3921346A
US3921346A US325658A US32565873A US3921346A US 3921346 A US3921346 A US 3921346A US 325658 A US325658 A US 325658A US 32565873 A US32565873 A US 32565873A US 3921346 A US3921346 A US 3921346A
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US
United States
Prior art keywords
liner
wall
members
shaft
engaging
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
Application number
US325658A
Inventor
Gale E Sauer
Carl R Mapes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Gypsum Co
Original Assignee
National Gypsum Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Gypsum Co filed Critical National Gypsum Co
Priority to US325658A priority Critical patent/US3921346A/en
Application granted granted Critical
Publication of US3921346A publication Critical patent/US3921346A/en
Assigned to AMERICAN OLEAN TILE COMPANY, INC. reassignment AMERICAN OLEAN TILE COMPANY, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITICORP INDUSTRIAL CREDIT, INC.
Publication of US3921346B1 publication Critical patent/US3921346B1/en
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, A CORP. OF NY reassignment GENERAL ELECTRIC CAPITAL CORPORATION, A CORP. OF NY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NATIONAL GYPSUM COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7411—Details for fire protection
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7453—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts with panels and support posts, extending from floor to ceiling
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/76—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal
    • E04B2/78—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/005—Lift shafts

Abstract

A wall construction adapted for enclosing an elevator shaft particularly suited for erection solely from one side thereof and resistant to normal distortions resulting from the heat of fire within the shaft.

Claims (14)

1. An air shaft cavity wall in a building generally surrounding a vertical air shaft extending continuously through at least two stories and subjected to destructive wind loading, the wall comprising at least one floor and adjacent ceiling cut away to define the continuous shaft therethrough, a plurality of liner panel members, a plurality of studs engaging the liner members, at least one partition member spaced away from the liner members by the studs so as to form an air gap between the partition member and a corresponding one of the liner members, means for mounting the stud in a vertical disposition, said stud-mounting means comprising a floor runner attached to said floor, and means permitting said liner members and the studs to be inserted within the runner from only the side of the wall opposite to the shaft side.
2. The wall as defined in claim 1, wherein some of said studs are each a one-piece metal channel having means for engaging the liner members on more than one vertical side thereof, said wall comprising means for engaging the liner members on three vertical sides thereof.
3. The wall as defined in claim 2, wherein said partition member comprises two continuous rows of wall-board panels.
4. The wall as defined in claim 2, and further including a base as an integral part of said stud for supporting the partition member, the base having no openings therethrough.
5. An air shaft wall in a building generally surrounding a vertical air shaft extending continuously through at least two stories and capable of generating destructive wind loading, the wall comprising at least one floor and one adjacent ceiling cut away to define the continuous shaft therethrough, means for mounting a stud in a vertical disposition, said studmounting means comprising a floor runner attached to said floor, said runner having at least one flange, at least two liner panel members one side of which is exposed to the shaft, means for abutting said one side to the flange of the runner, at least one stud characterized by means for engaging said liner members on more than one vertical side thereof, means for engaging said liner members on three vertical sides thereof, and means for erecting at least one partition member away from the shaft and spaced from said liner members so as to leave an air gap there-between, said erecting means being independent of said liner members.
6. An air shaft cavity wall in a building generally surrounding a vertical air shaft extending continuously, the wall comprising at least one floor having an edge adjacent the continuous shaft, a plurality of liner panel members, a plurality of studs engaging the liner members, at least one partition member spaced away from the liner members by the studs so as to form an air gap between the partition member and a corresponding one of the liner members, means for mounting the stud in a vertical disposition, said stud-mounting means comprising a floor runner attached to said floor, and means permitting said liner members and the studs to be inserted within the runner from only the side of the wall opposite to the shaft side.
7. The wall as defined in claim 6, wherein some of said studs are each a one-piece metal channel having means for engaging the liner members on more than one vertical side thereof; said wall comprising means, including said engaging means of said one-piece metal channel and independent of said floor runner, for engaging said liner members on three vertical sides thereof.
8. The wall as defined in claim 6 wherein said shaft is an elevator shaft.
9. An air shaft wall in a building generally surrounding a vertical air shaft extending continuously, the wall comprising at least one floor having an edge adjacent the continuous shaft, means for mounting a stud in a vertical disposition, said stud-mounting means comprising a floor runner attached to said floor, said runner having at leasT one flange, at least two liner panel members one side of which is exposed to the shaft, means for abutting said one side to the flange of the runner, at least one stud characterized by means for engaging said liner members on more than one vertical side thereof, means, including said engaging means of said stud and independent of said floor runner, for engaging the liner members on three vertical sides thereof, and means for erecting at least one partition member away from the shaft and spaced from said liner members so as to leave an air gap therebetween, said erecting means being independent of said liner members.
10. The wall as recited in claim 9 wherein said shaft is an elevator shaft.
11. The wall as defined in claim 5 wherein: said means for abutting said one side of the liner panel members to the flange of the runner includes said means for engaging the liner members on three vertical sides thereof; and said means for engaging the liner members on three vertical sides thereof comprises means for abutting but not attaching said one side of the liner panel members to the flange of the runner.
12. The wall as defined in claim 11 and comprising: screw means for attaching said one side of the liner panel members to the flange of the runner.
13. An air shaft cavity wall as recited in claim 1 wherein said liner panel members each have one side facing said shaft and said wall comprises means, including means on each stud for abutting said one side of a liner panel member, permitting said liner panel members and the studs to be assembled in said wall without preassembly of the liner panel members and the studs.
14. An air shaft cavity wall as recited in claim 6 wherein said liner panel members each have one side facing said shaft and said wall comprises means, including means on each stud for abutting said one side of a liner panel member, permitting said liner panel members and the studs to be assembled in said wall without preassembly of the liner panel members and the studs.
US325658A 1971-11-12 1973-01-22 Fire retardant shaft wall Expired - Lifetime US3921346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US325658A US3921346A (en) 1971-11-12 1973-01-22 Fire retardant shaft wall

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19848371A 1971-11-12 1971-11-12
US325658A US3921346A (en) 1971-11-12 1973-01-22 Fire retardant shaft wall

Publications (2)

Publication Number Publication Date
US3921346A true US3921346A (en) 1975-11-25
US3921346B1 US3921346B1 (en) 1990-12-18

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Family Applications (1)

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US325658A Expired - Lifetime US3921346A (en) 1971-11-12 1973-01-22 Fire retardant shaft wall

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Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047355A (en) * 1976-05-03 1977-09-13 Studco, Inc. Shaftwall
USRE29965E (en) * 1973-07-25 1979-04-17 Wall construction
US4747240A (en) * 1981-08-06 1988-05-31 National Gypsum Company Encapsulated PCM aggregate
US5092100A (en) * 1986-05-22 1992-03-03 Bpb Industries Public Limited Company Wall or lining structure
US5245811A (en) * 1991-03-14 1993-09-21 William L. Knorr Wall framing clip system
NL9301685A (en) * 1993-09-30 1995-04-18 Bruynzeel Intersysteem Partition wall, and method for building a partition wall
AU663902B2 (en) * 1992-03-27 1995-10-26 National Gypsum Company Shaft wall and horizontal metal stud therefor
US5467567A (en) * 1992-12-29 1995-11-21 The Reinforced Earth Company Spring biased apparatus for maintaining precast panels in a stable removable position in a vertical slot
US5475961A (en) * 1992-03-27 1995-12-19 National Gypsum Company Vertical post assembly
US5575131A (en) * 1993-02-25 1996-11-19 National Gypsum Company Multiple use corner clip
US5724784A (en) * 1992-03-27 1998-03-10 National Gypsum Company Shaft wall and horizontal metal stud therefor
US5729945A (en) * 1995-04-17 1998-03-24 National Gypsum Company Wall structure and method of securing framing members to wallboards with an adhesive
US5740644A (en) * 1995-02-08 1998-04-21 National Gypsum Company Wall with horizontal metal stud and reinforcement channel therefor
US5749192A (en) * 1993-02-25 1998-05-12 National Gypsum Company Corner clips for horizonal framing
US6047508A (en) * 1998-03-10 2000-04-11 Steelcase Development Inc. Wall panel partition system
WO2001014656A1 (en) * 1999-08-17 2001-03-01 Tore Fjeld Device for wall constructions
US6539673B1 (en) * 1998-05-14 2003-04-01 Kone Corporation Fireproofing for an elevator landing door
US20050262799A1 (en) * 1999-10-08 2005-12-01 James Hardie Finance B.V. Fiber-cement/gypsum laminate composite building material
US20070277466A1 (en) * 2006-06-05 2007-12-06 Worthington Armstrong Venture Single-layered web beam for a suspended ceiling
US20070277468A1 (en) * 2006-06-05 2007-12-06 Worthington Armstrong Venture Single-layered web beam for a panel suspended ceiling
US20070277467A1 (en) * 2006-06-05 2007-12-06 Worthington Armstrong Venture Single-layered web beam for a drywall suspended ceiling
US7325325B2 (en) 2000-02-28 2008-02-05 James Hardle International Finance B.V. Surface groove system for building sheets
US7524555B2 (en) 1999-11-19 2009-04-28 James Hardie International Finance B.V. Pre-finished and durable building material
US20090126304A1 (en) * 2007-11-15 2009-05-21 Worthington Armstrong Venture Wall liner
US20090126305A1 (en) * 2007-11-15 2009-05-21 Worthington Armstrong Venture Wall liner
US7713615B2 (en) 2001-04-03 2010-05-11 James Hardie International Finance B.V. Reinforced fiber cement article and methods of making and installing the same
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8281535B2 (en) 2002-07-16 2012-10-09 James Hardie Technology Limited Packaging prefinished fiber cement articles
US8297018B2 (en) 2002-07-16 2012-10-30 James Hardie Technology Limited Packaging prefinished fiber cement products
US20150013258A1 (en) * 2012-02-14 2015-01-15 Vireo Llc Structural panels, cladding assemblies and components
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
US10273686B2 (en) * 2015-11-05 2019-04-30 Daniel Brian Lake Thermally broken framing system and method of use
US10406389B2 (en) * 2009-09-21 2019-09-10 California Expanded Metal Products Company Wall gap fire block device, system and method
US10563399B2 (en) 2007-08-06 2020-02-18 California Expanded Metal Products Company Two-piece track system
US10619347B2 (en) 2007-08-22 2020-04-14 California Expanded Metal Products Company Fire-rated wall and ceiling system
US10689842B2 (en) 2018-03-15 2020-06-23 California Expanded Metal Products Company Multi-layer fire-rated joint component
US10753084B2 (en) 2018-03-15 2020-08-25 California Expanded Metal Products Company Fire-rated joint component and wall assembly
US10900223B2 (en) 2012-01-20 2021-01-26 California Expanded Metal Products Company Fire-rated joint system
US10914065B2 (en) 2019-01-24 2021-02-09 California Expanded Metal Products Company Wall joint or sound block component and wall assemblies
US11060283B2 (en) 2010-04-08 2021-07-13 California Expanded Metal Products Company Fire-rated wall construction product
US11111666B2 (en) 2018-08-16 2021-09-07 California Expanded Metal Products Company Fire or sound blocking components and wall assemblies with fire or sound blocking components
US11162259B2 (en) 2018-04-30 2021-11-02 California Expanded Metal Products Company Mechanically fastened firestop flute plug
US11268274B2 (en) 2019-03-04 2022-03-08 California Expanded Metal Products Company Two-piece deflection drift angle
US11920343B2 (en) 2019-12-02 2024-03-05 Cemco, Llc Fire-rated wall joint component and related assemblies

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017672A (en) * 1958-03-18 1962-01-23 Vaughan Movable Interior Walls Non-load bearing dry wall partition construction
US3034609A (en) * 1960-07-11 1962-05-15 Unistrut Products Company Building partition structure
US3702044A (en) * 1970-11-18 1972-11-07 United States Gypsum Co Cavity shaft wall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017672A (en) * 1958-03-18 1962-01-23 Vaughan Movable Interior Walls Non-load bearing dry wall partition construction
US3034609A (en) * 1960-07-11 1962-05-15 Unistrut Products Company Building partition structure
US3702044A (en) * 1970-11-18 1972-11-07 United States Gypsum Co Cavity shaft wall

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29965E (en) * 1973-07-25 1979-04-17 Wall construction
US4047355A (en) * 1976-05-03 1977-09-13 Studco, Inc. Shaftwall
US4747240A (en) * 1981-08-06 1988-05-31 National Gypsum Company Encapsulated PCM aggregate
US5092100A (en) * 1986-05-22 1992-03-03 Bpb Industries Public Limited Company Wall or lining structure
US5245811A (en) * 1991-03-14 1993-09-21 William L. Knorr Wall framing clip system
WO1993022526A1 (en) * 1991-03-14 1993-11-11 Domtar Gypsum Inc. Wall framing clip system
AU663902B2 (en) * 1992-03-27 1995-10-26 National Gypsum Company Shaft wall and horizontal metal stud therefor
US5475961A (en) * 1992-03-27 1995-12-19 National Gypsum Company Vertical post assembly
US5724784A (en) * 1992-03-27 1998-03-10 National Gypsum Company Shaft wall and horizontal metal stud therefor
US5467567A (en) * 1992-12-29 1995-11-21 The Reinforced Earth Company Spring biased apparatus for maintaining precast panels in a stable removable position in a vertical slot
US5575131A (en) * 1993-02-25 1996-11-19 National Gypsum Company Multiple use corner clip
US5644883A (en) * 1993-02-25 1997-07-08 National Gypsum Company Multiple use corner clip
US5749192A (en) * 1993-02-25 1998-05-12 National Gypsum Company Corner clips for horizonal framing
NL9301685A (en) * 1993-09-30 1995-04-18 Bruynzeel Intersysteem Partition wall, and method for building a partition wall
US5740644A (en) * 1995-02-08 1998-04-21 National Gypsum Company Wall with horizontal metal stud and reinforcement channel therefor
US5729945A (en) * 1995-04-17 1998-03-24 National Gypsum Company Wall structure and method of securing framing members to wallboards with an adhesive
US6047508A (en) * 1998-03-10 2000-04-11 Steelcase Development Inc. Wall panel partition system
US6539673B1 (en) * 1998-05-14 2003-04-01 Kone Corporation Fireproofing for an elevator landing door
WO2001014656A1 (en) * 1999-08-17 2001-03-01 Tore Fjeld Device for wall constructions
US20050262799A1 (en) * 1999-10-08 2005-12-01 James Hardie Finance B.V. Fiber-cement/gypsum laminate composite building material
US7524555B2 (en) 1999-11-19 2009-04-28 James Hardie International Finance B.V. Pre-finished and durable building material
US7325325B2 (en) 2000-02-28 2008-02-05 James Hardle International Finance B.V. Surface groove system for building sheets
US8409380B2 (en) 2001-04-03 2013-04-02 James Hardie Technology Limited Reinforced fiber cement article and methods of making and installing the same
US7713615B2 (en) 2001-04-03 2010-05-11 James Hardie International Finance B.V. Reinforced fiber cement article and methods of making and installing the same
US8297018B2 (en) 2002-07-16 2012-10-30 James Hardie Technology Limited Packaging prefinished fiber cement products
US8281535B2 (en) 2002-07-16 2012-10-09 James Hardie Technology Limited Packaging prefinished fiber cement articles
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
US8590275B2 (en) 2006-06-05 2013-11-26 Worthington Armstrong Venture Single-layered web beam for a panel suspended ceiling
US20070277466A1 (en) * 2006-06-05 2007-12-06 Worthington Armstrong Venture Single-layered web beam for a suspended ceiling
US8590274B2 (en) 2006-06-05 2013-11-26 Worthington Armstrong Venture Single-layered web beam for a suspended ceiling
US20070277467A1 (en) * 2006-06-05 2007-12-06 Worthington Armstrong Venture Single-layered web beam for a drywall suspended ceiling
US8572930B2 (en) 2006-06-05 2013-11-05 Worthington Armstrong Venture Single layered web beam for a drywall suspended ceiling
US20070277468A1 (en) * 2006-06-05 2007-12-06 Worthington Armstrong Venture Single-layered web beam for a panel suspended ceiling
US11560712B2 (en) 2007-08-06 2023-01-24 Cemco, Llc Two-piece track system
US11041306B2 (en) 2007-08-06 2021-06-22 California Expanded Metal Products Company Two-piece track system
US11773587B2 (en) 2007-08-06 2023-10-03 Cemco, Llc Two-piece track system
US10563399B2 (en) 2007-08-06 2020-02-18 California Expanded Metal Products Company Two-piece track system
US11802404B2 (en) 2007-08-22 2023-10-31 Cemco, Llc Fire-rated wall and ceiling system
US10619347B2 (en) 2007-08-22 2020-04-14 California Expanded Metal Products Company Fire-rated wall and ceiling system
US11466449B2 (en) 2007-08-22 2022-10-11 California Expanded Metal Products Company Fire-rated wall and ceiling system
US8938926B2 (en) 2007-11-15 2015-01-27 Worthington Armstrong Venture Wall liner
US20090126304A1 (en) * 2007-11-15 2009-05-21 Worthington Armstrong Venture Wall liner
US20090126305A1 (en) * 2007-11-15 2009-05-21 Worthington Armstrong Venture Wall liner
US11896859B2 (en) 2009-09-21 2024-02-13 Cemco, Llc Wall gap fire block device, system and method
US10406389B2 (en) * 2009-09-21 2019-09-10 California Expanded Metal Products Company Wall gap fire block device, system and method
US11141613B2 (en) 2009-09-21 2021-10-12 California Expanded Metal Products Company Wall gap fire block device, system and method
US11060283B2 (en) 2010-04-08 2021-07-13 California Expanded Metal Products Company Fire-rated wall construction product
US11905705B2 (en) 2010-04-08 2024-02-20 Cemco, Llc Fire-rated wall construction product
US11898346B2 (en) 2012-01-20 2024-02-13 Cemco, Llc Fire-rated joint system
US10900223B2 (en) 2012-01-20 2021-01-26 California Expanded Metal Products Company Fire-rated joint system
US9267280B2 (en) * 2012-02-14 2016-02-23 Vireo Llc Structural panels, cladding assemblies and components
US20150013258A1 (en) * 2012-02-14 2015-01-15 Vireo Llc Structural panels, cladding assemblies and components
US10273686B2 (en) * 2015-11-05 2019-04-30 Daniel Brian Lake Thermally broken framing system and method of use
US11866932B2 (en) 2018-03-15 2024-01-09 Cemco, Llc Fire-rated joint component and wall assembly
US10753084B2 (en) 2018-03-15 2020-08-25 California Expanded Metal Products Company Fire-rated joint component and wall assembly
US10689842B2 (en) 2018-03-15 2020-06-23 California Expanded Metal Products Company Multi-layer fire-rated joint component
US10954670B2 (en) 2018-03-15 2021-03-23 California Expanded Metal Products Company Multi-layer fire-rated joint component
US11421417B2 (en) 2018-03-15 2022-08-23 California Expanded Metal Products Company Fire-rated joint component and wall assembly
US11162259B2 (en) 2018-04-30 2021-11-02 California Expanded Metal Products Company Mechanically fastened firestop flute plug
US11933042B2 (en) 2018-04-30 2024-03-19 Cemco, Llc Mechanically fastened firestop flute plug
US11111666B2 (en) 2018-08-16 2021-09-07 California Expanded Metal Products Company Fire or sound blocking components and wall assemblies with fire or sound blocking components
US11873636B2 (en) 2018-08-16 2024-01-16 Cemco, Llc Fire or sound blocking components and wall assemblies with fire or sound blocking components
US11280084B2 (en) 2019-01-24 2022-03-22 California Expanded Metal Prod ucts Company Wall joint or sound block component and wall assemblies
US11891800B2 (en) 2019-01-24 2024-02-06 Cemco, Llc Wall joint or sound block component and wall assemblies
US10914065B2 (en) 2019-01-24 2021-02-09 California Expanded Metal Products Company Wall joint or sound block component and wall assemblies
US11920344B2 (en) 2019-03-04 2024-03-05 Cemco, Llc Two-piece deflection drift angle
US11268274B2 (en) 2019-03-04 2022-03-08 California Expanded Metal Products Company Two-piece deflection drift angle
US11920343B2 (en) 2019-12-02 2024-03-05 Cemco, Llc Fire-rated wall joint component and related assemblies

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMERICAN OLEAN TILE COMPANY, INC., PENNSYLVANIA

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:005770/0224

Effective date: 19870421

RR Request for reexamination filed

Effective date: 19891113

B1 Reexamination certificate first reexamination
AS Assignment

Owner name: GENERAL ELECTRIC CAPITAL CORPORATION, A CORP. OF N

Free format text: SECURITY INTEREST;ASSIGNOR:NATIONAL GYPSUM COMPANY;REEL/FRAME:005548/0167

Effective date: 19901029