US4058167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire protection apparatus
Assignee: Individual
•
Filing: 1976-07-13
•
Granted: 1977-11-15
•
Expires: 1996-07-13
Abstract
Abstract Fire protection apparatus having a conduit formed internally with longitudinally continuous compartments for conveying water or fire-extinguishing gas or foam, and spray nozzles spaced along the conduit and each connected to a different compartment thereof. Combustion detectors are arranged in each of the areas adjacent to the conduit which are covered by the spray from the nozzles and operate a control system selectively supplying fluid to a compartment of the conduit when a fire hazard is detected, so as to supply the particular nozzle or nozzles covering the area where the fire hazard has arisen. An extensive network of piping is avoided and the apparatus can be installed inconspicuously and without the need for robust jointing, sealing and supporting fittings.
Inventors
- 👤 Gerhard Granek
- 👤 Clifford Paul Robert Greenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:42
CPC Classifications
A; A62; A62C; A62C35/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
115 words
Fire protection apparatus comprising a conduit providing a plurality of internal longitudinally continuous compartments and having spaced at intervals along its length a plurality of fluid directing nozzles each connected to a respective compartment of the conduit, said nozzles being arranged to direct fluid to different respective localised areas adjacent the conduit, a plurality of fire hazard detectors, one detector being associated with each of said areas, and means for supplying fire-extinguishing fluid selectively to the compartments of the conduit, said means so operating under the control of the detectors as to supply the fluid to the compartment and nozzle connected thereto which directs the fluid to the area where a fire hazard is detected.
Claim 2
Dependent Claim
115 words
Fire protection apparatus comprising a conduit providing a plurality of internal longitudinally continuous compartments and having spaced at intervals along its length a plurality of fluid directing nozzles each connected to a respective compartment of the conduit, said nozzles being arranged to direct fluid to different respective localised areas adjacent the conduit, a plurality of fire hazard detectors, one detector being associated with each of said areas, and means for supplying fire-extinguishing fluid selectively to the compartments of the conduit, said means so operating under the control of the detectors as to supply the fluid to the compartment and nozzle connected thereto which directs the fluid to the area where a fire hazard is detected.
Claim 3
Dependent Claim
21 words
Apparatus as claimed in claim 1 wherein said conduit extends along the upper edge of an interior wall of a building.
Claim 4
Dependent Claim
14 words
Apparatus as claimed in claim 1 wherein said conduit is of rectangular external profile.
Claim 5
Dependent Claim
18 words
Apparatus as claimed in claim 3 wherein said conduit comprises a unitary extrusion having longitudinally extending internal passageways.
Claim 6
Dependent Claim
21 words
Apparatus as claimed in claim 4 wherein said supplying means comprise a plurality of independently operating valves connected to said conduit.
Claim 7
Dependent Claim
25 words
Apparatus as claimed in claim 5 wherein said valves are connected between said conduit and a manifold adapted to be connected to a fluid source.
Claim 8
Dependent Claim
15 words
An apparatus as claimed in claim 1 wherein said nozzles deliver a fine water spray.
Claim 9
Dependent Claim
42 words
Apparatus as claimed in claim 1 wherein the conduit passes horizontally through a plurality of rooms in a building and is supported on the surfaces of walls of the rooms, a plurality of the rooms each having at least one nozzle therein.
References Cited (Backward Citations)
US792794A
Cited
US1692052A
Cited
US2667383A
Cited
US2865674A
Cited
US3016956A
Cited
US3865192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |