US3762477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire protection system
Assignee: Individual
•
Filing: 1971-06-09
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Granted: 1973-10-02
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Expires: 1991-06-09
Abstract
Abstract A fire protection system for detecting a fire in one of several protected areas, energizing an alarm and selectively directing a fire extinguishing medium, chemical or water, to that area.
Inventors
- 👤 G Mobley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
A; A62; A62C; A62C37/00; A62C35/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
222 words
A fire protection system for protecting a plurality of regions comprising: A. a temperature sensor associated with each said region and responsive to a critical temperature within a said region for providing a first electrical condition when said temperature is below a predetermined temperature and for providing a second electrical condition when said temperature is above said predetermined temperature; B. at least first and second sources of fire extinguishing material; C. at least one central distribution line; D. first electrical valve means for interconnecting said first source of fire extinguishing material to said central distribution line and second electrical valve means for connecting said second source of fire extinguishing material to said central distribution line; E. at least one fluid discharge nozzle adapted to distribute an applied fluid over a predetermined area of a said region positioned within each said region; F. nozzle control electrical valve means interconnecting each said nozzle with said central distribution line; G. electrical control means including a source of energizing power and responsive to a said second electrical condition from one of said sensors for operating open the said nozzle control electrical valve means associated with the region in which said sensor is positioned and for selectively energizing either said first or second electrical valve means for applying a selected fire extinguishing material to a said region.
Claim 2
Dependent Claim
222 words
A fire protection system for protecting a plurality of regions comprising: A. a temperature sensor associated with each said region and responsive to a critical temperature within a said region for providing a first electrical condition when said temperature is below a predetermined temperature and for providing a second electrical condition when said temperature is above said predetermined temperature; B. at least first and second sources of fire extinguishing material; C. at least one central distribution line; D. first electrical valve means for interconnecting said first source of fire extinguishing material to said central distribution line and second electrical valve means for connecting said second source of fire extinguishing material to said central distribution line; E. at least one fluid discharge nozzle adapted to distribute an applied fluid over a predetermined area of a said region positioned within each said region; F. nozzle control electrical valve means interconnecting each said nozzle with said central distribution line; G. electrical control means including a source of energizing power and responsive to a said second electrical condition from one of said sensors for operating open the said nozzle control electrical valve means associated with the region in which said sensor is positioned and for selectively energizing either said first or second electrical valve means for applying a selected fire extinguishing material to a said region.
Claim 3
Dependent Claim
38 words
A fire protection system as set forth in claim 1 further comprising an audible alarm responsive to said temperature sensors for sounding an alarm whenever one of said sensors is operated to provide a said second electrical condition.
Claim 4
Dependent Claim
89 words
A fire protection system as set forth in claim 1 further comprising fourth valve means connected between said first source of extinguishing material and said central distribution line and fifth valve means connected between said second source of extinguishing material and said central distribution line and switching means interconnected to each said temperature sensor for selectively providing said second electrical condition for selectively testing the Interconnections between each said temperature sensor and said first and second electrical valve means without permitting flow of material to said central distribution line.
Claim 5
Dependent Claim
43 words
A fire protection system as set forth in claim 2 wherein at least one of said nozzles is a rotating nozzle incuding a plurality of passageways for directing a plurality of streams of extinguishing material over a substantial area of a said region.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |