US5084190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing composition and process
Assignee: EIDP Inc
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Filing: 1989-11-14
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Granted: 1992-01-28
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Expires: 2009-11-14
Abstract
Abstract A process for extinguishing, preventing and controlling fires using a composition containing at least one fluoro-substituted propane selected from the group of CF 3 --CHF--CF 3 , CF 3 --CF 2 --CHF 2 , CF 3 --CFH--CF 2 H, CF 3 --CH 2 --CF 3 , CF 3 --CF 2 --CH 2 F, CHF 2 --CF 2 --CHF 2 , CF 3 --CF 2 --CHCl 2 , CHFCl--CF 2 --CClF 2 , CHF 2 --CCl 2 --CF 3 , CF 3 --CHCl--CClF 2 , CHF 2 --CF 2 --CHClF, CF 3 --CR 2 --CH 2 Cl, CClF 2 --CF 2 --CH 2 F, CF 3 --CH 2 --CClF 2 , CHClF--CR 2 --CF 3 , CHF 2 --CF 2 --CF 2 Cl, CF 3 --CHCl--CF 3 , CF 3 --CHF--CF 2 Cl, and CHF 2 --CFCl--CF 3 is disclosed. The fluoropropanes can be used in open or enclosed areas with little or no effect on the ozone in the stratosphere and with little effect on the global warming process.
Inventors
- 👤 Richard E. Fernandez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:34
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0057
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A fire extinguishing composition consisting essentially of at least 4 volume percent of at least one fluoro-substituted propane selected from the group of CH 3 --CHF--CF 3 , CHF 2 --CH 2 --CF 3 --CH 2 --CF 3 , CF 3 --CF 2 --CH 2 f CF 2 H--CF 2 --CHF 2 , CHClF--CF 2 --CF 3 , CHF 2 --CF 2 Cl, CF 3 --CHCl--CF 3 , CF 3 --CHF--CF 2 Cl, and CHF 2 --Cl, and CHF 2 --CFCl--CF 3 .
Claim 2
Dependent Claim
83 words
A fire extinguishing composition consisting essentially of at least 4 volume percent of at least one fluoro-substituted propane selected from the group of CH 3 --CHF--CF 3 , CHF 2 --CH 2 --CF 3 --CH 2 --CF 3 , CF 3 --CF 2 --CH 2 f CF 2 H--CF 2 --CHF 2 , CHClF--CF 2 --CF 3 , CHF 2 --CF 2 Cl, CF 3 --CHCl--CF 3 , CF 3 --CHF--CF 2 Cl, and CHF 2 --Cl, and CHF 2 --CFCl--CF 3 .
Claim 3
Dependent Claim
62 words
The composition of claim 1 wherein at least 1% of at least one halogenated hydrocarbon is blended with said fluoro-substituted propane said halogenated hydrocarbon being selected from the group consisting of difluoromethane, chlorodifluoromethane, 2,2-dichloro-1,1,1-trifluoroethane, 1,2-dichloro-1,1,2-trifluoroethane, 2-chloro-1,1,1,2-tetrafluoroethane, 1-chloro-1,1,2,2-tetrafluoroethane, pentafluoroethane, 1,1,2,2-tetrafluoroethane, 1,1,1,2-tetrafluoroethane, 1,2-dichloro-1,2-difluoroethane, 1,1-dichloro-1,2-difluoroethane, 3,3-dichloro-1,1,1,2,2-pentafluoropropane, 1,3-dichloro-1,1,2,2,3-pentafluoropropane, 2,2-dichloro-1,1,1,3,3-pentafluoropropane, 2,3-dichloro-1,1,1,3,3-pentafluoropropane, 1,1,1,2,2,3,3-heptafluoropropane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,3,3-hexafluoropropane, 1,1,1,3,3,3-hexafluoropropane, 1,1,1,2,2,3-hexafluoropropane, 1,1,2,2,3,3-hexafluoropropane, 3-chloro-1,1,2,2,3-pentafluoropropane, 3-chloro-1,1,1,2,2-pentafluoropropane, 1-chloro-1,1,2,2,3-pentafluoropropane, 3-chloro-1,1,1,3,3-pentafluoropropane, 3-chloro-1,1,1,2,2,3-hexafluoropropane, 1-chloro-1,1,2,2,3,3-hexafluoropropane, 2-chloro-1,1,1,3,3,3-hexafluoropropane, 3-chloro-1,1,1,2,3,3-hexafluoropropane, and 2-chloro-1,1,1,2,3,3-hexafluoropropane.
Claim 4
Dependent Claim
128 words
A fire extinguishing composition consisting essentially of at least one fluoro-substituted propane selected from the group of CF 3 --CFH--CF 3 , CF 3 --CF 2 --CHF 2 , CH 3 --CHF--CF 2 H, CF 3 --CH 2 --CF 3 , CF 3 --CF CF 2 H--CF 2 --CHF 2 , CF 3 --CF 2 --CHC 12 , CHFCl--CF 2 --CF 2 Cl, CHF 2 --CCl 2 --CF 3 , CF 3 --CHCl--CClF 2 , CHF 2 --CHClF, CF 3 --CF 2 --CH 2 Cl, CClF 2 --CF 2 --CH 2 F, CF 3 --CH 2 , --CClF 2 , CHClF--CF 2 --CF 3 , CHF 2 --CF 2 --CF 2 Cl, CF 3 --CHCl--CF 3 , CF 3 --CHF--CF 2 Cl, and CHF 2 --CFCl--CF 3 .
Claim 5
Dependent Claim
128 words
A fire extinguishing composition consisting essentially of at least one fluoro-substituted propane selected from the group of CF 3 --CFH--CF 3 , CF 3 --CF 2 --CHF 2 , CH 3 --CHF--CF 2 H, CF 3 --CH 2 --CF 3 , CF 3 --CF CF 2 H--CF 2 --CHF 2 , CF 3 --CF 2 --CHC 12 , CHFCl--CF 2 --CF 2 Cl, CHF 2 --CCl 2 --CF 3 , CF 3 --CHCl--CClF 2 , CHF 2 --CHClF, CF 3 --CF 2 --CH 2 Cl, CClF 2 --CF 2 --CH 2 F, CF 3 --CH 2 , --CClF 2 , CHClF--CF 2 --CF 3 , CHF 2 --CF 2 --CF 2 Cl, CF 3 --CHCl--CF 3 , CF 3 --CHF--CF 2 Cl, and CHF 2 --CFCl--CF 3 .
Claim 6
Dependent Claim
36 words
The composition of claim 3 wherein nitrogen or any other propellant usually used in portable fire extinguishers is added in sufficient quantity to provide a pressure of at least 140 psig in said portable fire extinguisher.
Claim 7
Dependent Claim
62 words
The composition of claim 3 wherein at least 1% of at least one halogenated hydrocarbon is blended with said fluoro-substituted propane, said halogenated hydrocarbon being selected from the group consisting of difluoromethane, chlorodifluoromethane, 2,2-dichloro-1,1,1-trifluoroethane, 1,2-dichloro-1,1,2-trifluoroethane, 2-chloro-1,1,1,2-tetrafluoroethane, 1-chloro-1,1,2,2-tetrafluoroethane, pentafluoroethane, 1,1,2,2-tetrafluoroethane, 1,1,1,2-tetrafluoroethane, 1,2-dichloro-1,2-difluoroethane, 1,1-dichloro-1,2-difluoroethane, 3,3-dichloro-1,1,1,2,2-pentafluoropropane, 1,3-dichloro-1,1,2,2,3-pentafluoropropane, 2,2-dichloro-1,1,1,3,3-pentafluoropropane, 2,3-dichloro-1,1,1,3,3-pentafluoropropane, 1,1,1,2,2,3,3-heptafluoropropane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,3,3-hexafluoropropane, 1,1,1,3,3,3-hexafluoropropane, 1,1,1,2,2,3-hexafluoropropane, 1,1,2,2,3,3-hexafluoropropane, 3-chloro-1,1,2,2,3-pentafluoropropane, 3-chloro-1,1,1,2,2-pentafluoropropane, 1-chloro-1,1,2,2,3-pentafluoropropane, 3-chloro-1,1,1,3,3-pentafluoropropane, 3-chloro-1,1,1,2,2,3-hexafluoropropane, 1-chloro-1,1,2,2,3,3-hexafluoropropane, 2-chloro-1,1,1,3,3,3-hexafluoropropane, 3-chloro-1,1,1,2,3,3-hexafluoropropane, and 2-chloro-1,1,1,2,3,3-hexafluoropropane.
Claim 8
Dependent Claim
39 words
The composition of claim 5 wherein nitrogen or any other propellant usually used in portable fire extinguishers is added in sufficient quantity to provide a pressure of at least 140 psig at 21° C. in said portable fire extinguisher.
Claim 9
Dependent Claim
52 words
A fire extinguishing composition comprising at least one fluoro-substituted propane selected from the group of CF 3 --CFH-CF 3 , CF 3 --CF 2 --CHF 2 , CF 3 --CHF--CF 2 H, CF 3 --CF 3 , CF 3 --CF 2 --CF 2 F and CF 2 H--CF 2 --CHF 2 .
Claim 10
Dependent Claim
52 words
A fire extinguishing composition comprising at least one fluoro-substituted propane selected from the group of CF 3 --CFH-CF 3 , CF 3 --CF 2 --CHF 2 , CF 3 --CHF--CF 2 H, CF 3 --CF 3 , CF 3 --CF 2 --CF 2 F and CF 2 H--CF 2 --CHF 2 .
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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) | 1995-01-27 | 1995-07-29 | 1996-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-27 | 1999-07-29 | 2000-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-27 | 2003-07-29 | 2004-01-28 | $7700.00 | Window Closed / Lapsed |