US3837126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire screen for a structural panel
Assignee: AGC Glass Europe SA
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Filing: 1972-06-19
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Granted: 1974-09-24
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Expires: 1992-06-19
Abstract
Abstract A structural panel comprising one or a plurality of spaced sheet numbers has a frame around its edge. At least one body of material capable of screening the structural panel against fire is provided either in the form of a mechanical member or a chemically activated substance. The member or substance are retained in an inoperative position in the vicinity of the structural panel and are released to an operative position in response to a predetermined rise of temperature wherein a body of material covers substantially one or more faces of the panel.
Inventors
- 👤 J Voiturier
- 👤 F Jacquemin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:15
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/10; E06B5/16; E06B5/165; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10045; B32B17/10055; B32B17/10165; B32B17/10293; B32B17/10302; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; E04B1/942; E04C; E04C2/00; E04C2/54
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
110 words
A fire screen for a light transmitting structural panel comprising means for providing at least one body of material capable of screening a structural panel against fire, means for retaining said fire screening means in an inoperative position in the vicinity of the periphery of the structural panel, and means responsive to a rise to a predetermined temperature for releasing said fire screening means from its inoperative position into an operative position in which at least one fire screening body of material covers substantially the area of the panel, and wherein said fire screening material comprises a flowable hydrated material containing absorbed water and which material is flowable when heated.
Claim 2
Dependent Claim
110 words
A fire screen for a light transmitting structural panel comprising means for providing at least one body of material capable of screening a structural panel against fire, means for retaining said fire screening means in an inoperative position in the vicinity of the periphery of the structural panel, and means responsive to a rise to a predetermined temperature for releasing said fire screening means from its inoperative position into an operative position in which at least one fire screening body of material covers substantially the area of the panel, and wherein said fire screening material comprises a flowable hydrated material containing absorbed water and which material is flowable when heated.
Claim 3
Dependent Claim
26 words
A fire screen as claimed in claim 1 wherein said panel is hollow, said fire screening means being released to an operative position within the panel.
Claim 4
Dependent Claim
27 words
A fire screen as claimed in claim 1 wherein said fire screening means comprises a flowable material which when released forms said fire screening body of material.
Claim 5
Dependent Claim
15 words
A fire screen as claimed in claim 3 wherein said flowable material is a liquid.
Claim 6
Dependent Claim
16 words
A fire screen as claimed in claim 3 wherein said flowable material is a solids/liquid suspension.
Claim 7
Dependent Claim
31 words
A fire screen as claimed in claim 1 wherein said hydrated material is selected from the group consisting of sodium silicate, silica-gel, borax, silica-aluminate, a ferrous sulphate or a ferrous carbonate.
Claim 8
Dependent Claim
40 words
A fire screen as claimed in claim 1 wherein the liquid ingredient of the hydrated material will evaporate after the fire screening means has been released to its operative position to leave a substantially solid fire screening body of material.
Claim 9
Dependent Claim
30 words
A fire screen as claimed in claim 3 wherein said fire screening body of material flows to form a coating on onE of the faces of said panel when released.
Claim 10
Dependent Claim
26 words
A fire screen as claimed in claim 3 wherein said panel is hollow, said fire screening material flowing into and filling the panel upon being released.
Claim 11
Dependent Claim
33 words
A fire screen as claimed in claim 1 and comprising a frame enclosing said panel, means within said frame for defining a chamber therein, said fire screening means being contained in said chamber.
Claim 12
Dependent Claim
30 words
A fire screen as claimed in claim 1 wherein said panel comprises a plurality of spaced sheet members, and resilient spacer means for retaining said sheet members in spaced relation.
Claim 13
Dependent Claim
20 words
A fire screen as claimed in claim 1 wherein said panel comprises at least one sheet of chemically tempered glass.
Claim 14
Dependent Claim
39 words
A fire screen as claimed in claim 1 wherein said panel comprises at least one laminated sheet, said laminated sheet comprising a plurality of sheets of chemically tempered glass and a layer of plastic therebetween uniting said glass sheets.
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |