Patent US4630419A successfully refreshed from Google Patents.
US4630419A
Expired / Lapsed
US
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Building components
Assignee: BPB Ltd
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Filing: 1985-04-18
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Granted: 1986-12-23
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Expires: 2005-04-18
Abstract
Abstract The invention relates to building components, for example studs for supporting wall boards, made of a plaster-resin mixture, with a fibrous sheet embedded near the surface. Components according to the invention have excellent fire-resistant properties. Such components can be made by, for example, introducing a plaster-resin slurry into a mould lined with fibrous sheets, and allowing the slurry to set, or they may be made continuously by, for example, passing the slurry and sheets through one or more suitably profiled conveyors, vibration being employed to cause the slurry to penetrate through the sheets. Such components may be of H, C or U section for use as, for example, studs. They can also be used, for example, as ceiling panels or acoustic tiles, for which purposes they may be of hollow or channel form, and be filled with fibrous or other porous material.
Inventors
- 👤 Thomas A. Pilgrim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:58
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/0478; E04B9/0485; B; B28; B28B; B28B1/00; B28B1/52; B28B19/00; B29; B29C; B29C67/00; B29C67/24; B29C67/242; B29C67/245; E04C; E04C1/00; E04C1/40; E04C3/00; E04C3/02; E04C3/29; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
82 words
A building component comprising: an integral body of angulate, channel or hollow cross section, said body comprising a mixture of gypsum and resin; and at least one sheet of inorganic fibres, each such sheet being embedded and completely surrounded in said body immediately below a surface thereof; a continuous thin film of said gypsum and resin mixture of said body located on an exterior surface of said building component while being integral with said body and embedding and completely surrounding said sheet.
Claim 2
Dependent Claim
82 words
A building component comprising: an integral body of angulate, channel or hollow cross section, said body comprising a mixture of gypsum and resin; and at least one sheet of inorganic fibres, each such sheet being embedded and completely surrounded in said body immediately below a surface thereof; a continuous thin film of said gypsum and resin mixture of said body located on an exterior surface of said building component while being integral with said body and embedding and completely surrounding said sheet.
Claim 3
Dependent Claim
30 words
A building component according to claim 1 in which said at least one inorganic fibre sheet constitutes a layer which extends around the entire lateral periphery of the said body.
Claim 4
Dependent Claim
23 words
A building component according to claim 2 in which the or each sheet of inorganic fibres is a non-woven tissue of glass fibre.
Claim 5
Dependent Claim
19 words
A building component according to claim 1 having a section making it suitable for use as a skirting member.
Claim 6
Dependent Claim
23 words
A building component according to claim 1, in which said resin is selected from the group consisting of thermo-setting resins and cold-setting resins.
Claim 7
Dependent Claim
13 words
A building component according to claim 5 in which said resin is urea-formaldehyde.
Claim 8
Dependent Claim
13 words
A building component according to claim 5, in which said resin is phenol-formaldehyde.
Claim 9
Dependent Claim
17 words
A building component according to claim 5, in which said resin is a water dispersed epoxy resin.
Claim 10
Dependent Claim
15 words
A building component according to claim 1, in which said mixture contains chopped glass fibres.
Claim 11
Dependent Claim
14 words
A building component according to claim 1, in which said mixture contains an aggregate.
Claim 12
Dependent Claim
23 words
A building component according to claim 10 in which said aggregate is selected from the group consisting of exfoilated vermiculite and expanded perlite.
Claim 13
Dependent Claim
116 words
A building component for use as a stud member for support building panels or boards comprising: an elongate web; two flanges, said flanges extending from respective longitudinal edges of said web substantially perpendicular to the plane of said web; said web and said flanges being composed of a mixture of gypsum and resin; and at least one sheet of inorganic fibres, each such sheet being embedded and completely surrounded in said web and said flanges immediately below a surface thereof; a continuous thin film of said gypsum and resin mixture of said web being located on an exterior surface of said building component while being integral with said body and embedding and completely surrounding said sheet.
Claim 14
Dependent Claim
116 words
A building component for use as a stud member for support building panels or boards comprising: an elongate web; two flanges, said flanges extending from respective longitudinal edges of said web substantially perpendicular to the plane of said web; said web and said flanges being composed of a mixture of gypsum and resin; and at least one sheet of inorganic fibres, each such sheet being embedded and completely surrounded in said web and said flanges immediately below a surface thereof; a continuous thin film of said gypsum and resin mixture of said web being located on an exterior surface of said building component while being integral with said body and embedding and completely surrounding said sheet.
Claim 15
Dependent Claim
120 words
A building component for use as a ceiling or like panel comprising: a web of rectangular plan; at least two flanges, said flanges extending along respective edges of said web in the same direction and substantially perpendicular to the plane of said web; said web and said flanges being composed of a mixture of gypsum and resin; and at least one sheet of inorganic fibres, each such sheet being embedded and completely surrounded in said web and said flanges immediately below a surface thereof; a continuous thin film of said gypsum and resin mixture of said web located on an exterior surface of said building component while being integral with said body and said embedding and completely surrounding said sheet.
Claim 16
Dependent Claim
120 words
A building component for use as a ceiling or like panel comprising: a web of rectangular plan; at least two flanges, said flanges extending along respective edges of said web in the same direction and substantially perpendicular to the plane of said web; said web and said flanges being composed of a mixture of gypsum and resin; and at least one sheet of inorganic fibres, each such sheet being embedded and completely surrounded in said web and said flanges immediately below a surface thereof; a continuous thin film of said gypsum and resin mixture of said web located on an exterior surface of said building component while being integral with said body and said embedding and completely surrounding said sheet.
Claim 17
Dependent Claim
28 words
A building component according to claim 13 further comprising a body of fibrous or porous material, said body of material being contained by said web and said flanges.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |