US4292358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat protective barrier comprising apertured member having intumescent coating
Assignee: EXPANDED METAL Corp 1080 EXPAMET DRIVE SE SMYRNE ATLANTA GA A CORP OF
•
Filing: 1979-11-02
•
Granted: 1981-09-29
•
Expires: 1999-11-02
Abstract
Abstract A heat resistant protective barrier has one or more layers (1) each comprising a support medium in the form of a plurality of closely spaced-apart strands (2) and a heat actuated and resistive intumescent coating (3) on the strands. The support medium preferably comprises an expanded metal mesh (5").
Inventors
- 👤 Kevin C. Fryer
- 👤 Edgar C. Prentice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:16
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; F; F17; F17C; F17C13/00; F17C13/12; F17C13/123; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0607; F17C2203/0634; F17C2203/0636; F17C2203/0646; F17C2203/0658; F17C2203/066; F17C2203/0675; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2260/00; F17C2260/01; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24306; Y10T428/24314; Y10T428/24322; Y10T428/24331; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/11; Y10T442/20; Y10T442/2631; Y10T442/2648
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
65 words
A heat resistant and protective barrier having at least one layer, said at least one layer comprising: a free and unattached carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures, and a heat actuated and resistive intumescent coating disposed on said substrate, said substrate comprising the sole supporting means for said intumescent coating.
Claim 2
Dependent Claim
65 words
A heat resistant and protective barrier having at least one layer, said at least one layer comprising: a free and unattached carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures, and a heat actuated and resistive intumescent coating disposed on said substrate, said substrate comprising the sole supporting means for said intumescent coating.
Claim 3
Dependent Claim
12 words
A barrier according to claim 1, comprising a plurality of said layers.
Claim 4
Dependent Claim
33 words
A barrier according to claims 1 or 2, wherein said heat actuated and resistive intumescent coating covers only said strands of said substrate, said apertures between said strands being free of said coating.
Claim 5
Dependent Claim
65 words
A heat resistant and protective barrier having at least one layer, said at least one layer comprising: a carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures, and a heat actuated and resistive intumescent coating disposed on only said strands of said substrate, said apertures between said strands being free of said coating.
Claim 6
Dependent Claim
65 words
A heat resistant and protective barrier having at least one layer, said at least one layer comprising: a carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures, and a heat actuated and resistive intumescent coating disposed on only said strands of said substrate, said apertures between said strands being free of said coating.
Claim 7
Dependent Claim
50 words
A heat resistant and protective barrier, comprising: a plurality of layers, each of said layers including a carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures, and a heat actuated and resistive intumescent coating disposed on said substrate.
Claim 8
Dependent Claim
50 words
A heat resistant and protective barrier, comprising: a plurality of layers, each of said layers including a carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures, and a heat actuated and resistive intumescent coating disposed on said substrate.
Claim 9
Dependent Claim
18 words
A barrier according to claims 1, 2, 4 or 5, wherein said substrate comprises an expanded metal mesh.
Claim 10
Dependent Claim
15 words
A barrier according to claim 6, wherein said substrate comprises an expanded metal foil mesh.
Claim 11
Dependent Claim
18 words
A barrier according to claims 1, 2, 4 or 5, wherein said substrate comprises a non-heat-conductive mesh material.
Claim 12
Dependent Claim
44 words
A barrier according to claims 1, 4 or 5, further comprising a plurality of additional layers, each of said additional layers comprising only a substrate in the form of a sheet material comprising a plurality of spaced-apart strands defining therebetween a plurality of apertures.
Claim 13
Dependent Claim
17 words
A barrier according to claim 9, wherein each of said additional layers comprises an expanded metal mesh.
Claim 14
Dependent Claim
15 words
A barrier according to claims 1, 2, 4 or 5 wherein said layers are flexible.
Claim 15
Dependent Claim
18 words
A barrier according to claims 1, 2, 4 or 5 further including at least one protective outer skin.
Claim 16
Independent Claim
55 words
A method of forming a heat barrier, said method comprising: coating a free and unattached carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures with a heat actuated and resistive intumescent material, said substrate comprising the sole supporting means for said intumescent coating.
Claim 17
Independent Claim
55 words
A method of forming a heat barrier, said method comprising: coating a free and unattached carrier substrate in the form of a sheet material having a plurality of spaced-apart strands defining therebetween a plurality of apertures with a heat actuated and resistive intumescent material, said substrate comprising the sole supporting means for said intumescent coating.
Claim 18
Dependent Claim
19 words
A method according to claim 13, wherein only said strands of said substrate are coated with said intumescent material.
Claim 19
Dependent Claim
14 words
A method according to claim 13, wherein said substrate comprises an expanded metal mesh.
Claim 20
Dependent Claim
22 words
A method according to claim 15, wherein said intumescent material is applied to a metal sheet which is thereafter slit and expanded.
Claim 21
Dependent Claim
31 words
A method according to claim 15, wherein a metal sheet is cut to form slits, said intumescent material is applied to said slit sheet, and said slit sheet is thereafter expanded.
Claim 22
Dependent Claim
22 words
A method according to claim 13, further comprising stacking a plurality of layers of said coated substrate one on top of another.
References Cited (Backward Citations)
US3915777A
Cited
US3873409A
Cited
US3816226A
Cited
US3900625A
Cited
US3934066A
Cited
US4069075A
Cited
US4015386A
Cited
US4062160A
Cited
US4107376A
Cited
US4058643A
Cited
US4096304A
Cited
US4170675A
Cited
US4214418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |