Patent US3703930A successfully refreshed from Google Patents.
US3703930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sprinkling system
Assignee: FMC Corp
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Filing: 1971-05-27
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Granted: 1972-11-28
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Expires: 1991-05-27
Abstract
Abstract An automatic sprinkling system for a plurality of missiles or other highly combustible objects includes sprinkler heads arranged to supply streams of water individually to each missile. A fire detection means is provided for each missile and a control valve controls the flow of water to the sprinkler heads for each missile with the detection means being hydraulically connected with the control valve so as to open the same upon the actuation of the detection means. A system of check valves and control lines interconnects all of the control valves so that upon actuation of the detection means for any one missile the control valves of each of the adjacent valves will be opened along with the control valve for the missile which is on fire whereupon a maximum supply of water will be delivered immediately to the area where it is needed. The invention herein described was made in the course of or under a contract with the Department of the Navy.
Inventors
- 👤 Wilton S Lofstrand
- 👤 John G Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:53
CPC Classifications
A; A62; A62C; A62C3/00; A62C3/06; A62C35/00; A62C35/58; A62C35/60; A62C37/00; A62C37/36; A62C37/38; F; F42; F42B; F42B39/00; F42B39/14; F42B39/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
156 words
An automatic sprinkling system comprising a plurality of spaced sprinkling heads with each head being arranged to deliver water to a predetermined area, a control valve for each sprinkling head connected so as to control the flow of water thereto, a water supply line for supplying water to each of said control valves, control means for each control valve for actuating the valve to permit water to flow therethrough, fire condition sensing means associated with each control valve to sense the presence of a fire in the area associated therewith for operating the associated control means so as to permit flow through the sprinkler head which delivers water to the area with a fire condition and for simultaneously operating the control means associated with each adjacent area to deliver water to each area immediately adjacent to the area with a fire condition and to no other area without the actuation of further fire condition sensing means.
Claim 2
Dependent Claim
156 words
An automatic sprinkling system comprising a plurality of spaced sprinkling heads with each head being arranged to deliver water to a predetermined area, a control valve for each sprinkling head connected so as to control the flow of water thereto, a water supply line for supplying water to each of said control valves, control means for each control valve for actuating the valve to permit water to flow therethrough, fire condition sensing means associated with each control valve to sense the presence of a fire in the area associated therewith for operating the associated control means so as to permit flow through the sprinkler head which delivers water to the area with a fire condition and for simultaneously operating the control means associated with each adjacent area to deliver water to each area immediately adjacent to the area with a fire condition and to no other area without the actuation of further fire condition sensing means.
Claim 3
Dependent Claim
112 words
An automatic sprinkling system according to claim 1 wherein each of said control valves comprise a differential pressure valve which is hydraulically controlled through the pressure in a hydraulic control line and wherein each of said control means comprises said hydraulic control line, a trigger valve for relieving pressure in said hydraulic control line, means connecting said fire condition sensing means to said trigger valve to open the trigger valve upon the actuation of the sensing means, and at least a pair of secondary valves hydraulically connecting said trigger valve with each of the hydraulic control lines associated with the control valves of the sprinkling heads of the said immediately adjacent areas.
Claim 4
Dependent Claim
20 words
An automatic sprinkling system according to claim 2 wherein both said trigger valve and said secondary valves comprise check valves.
Claim 5
Dependent Claim
30 words
An automatic sprinkling system according to claim 1 wherein said fire condition sensing means comprises a pressure actuated sensor positioned beneath a combustible object located in the area associated therewith.
Claim 6
Dependent Claim
30 words
An automatic sprinkling system according to claim 1 wherein said fire condition sensing means comprises a heat actuated sensing means located at an elevated position in the area associated therewith.
Claim 7
Dependent Claim
47 words
An automatic sprinkling system according to claim 1 wherein said fire condition senSing means comprises both a heat actuated sensing means located in an elevated position in the area associated therewith and a pressure actuated sensing means positioned beneath a combustible object in said area associated therewith.
Claim 8
Dependent Claim
46 words
An automatic sprinkling system according to claim 2 including a control tank charged too a predetermined pressure, a primary control line connecting each of said hydraulic control lines to said control tank, and means providing communication between said primary control line and said water supply line.
Claim 9
Dependent Claim
44 words
An automatic sprinkling system according to claim 7 including a check valve in said water supply line allowing water to be delivered thereto at a pressure which is less than said predetermined pressure after the actuation of one of said fire condition sensing means.
Claim 10
Dependent Claim
35 words
An automatic sprinkling system according to claim 7 including means for simultaneously relieving the pressure in each of said hydraulic control lines for actuating all of said control valves and the sprinkler heads connected thereto.
Claim 11
Dependent Claim
190 words
An automatic sprinkling system for providing continuous sprinkling to an area which includes a plurality of combustible objects located at predetermined spaced positions, a water supply line for supplying water to each of said positions, a plurality of injector nozzles positioned beneath each of said objects and connected to said water supply line to deliver water therefrom to the lowermost surfaces of said objects, a pressure responsive member operatively associated with each of said nozzles to normally prevent the passage of water therethrough but which is arranged to be moved under the pressure of flames or expanding gases emanating from the associated combustible object to open said nozzle, hydraulic means connecting each of said pressure responsive members to an overlying sprinkling system, said sprinkling system being provided with a plurality of sprinkling heads arranged so as to overlie each of said combustible objects, and control means operable through the actuation of one of said hydraulic means to provide automatic sprinkling to the combustible object associated with said hydraulic means and to the combustible objects in said area which are immediately adjacent to said combustible object associated with said hydraulic means.
Claim 12
Dependent Claim
190 words
An automatic sprinkling system for providing continuous sprinkling to an area which includes a plurality of combustible objects located at predetermined spaced positions, a water supply line for supplying water to each of said positions, a plurality of injector nozzles positioned beneath each of said objects and connected to said water supply line to deliver water therefrom to the lowermost surfaces of said objects, a pressure responsive member operatively associated with each of said nozzles to normally prevent the passage of water therethrough but which is arranged to be moved under the pressure of flames or expanding gases emanating from the associated combustible object to open said nozzle, hydraulic means connecting each of said pressure responsive members to an overlying sprinkling system, said sprinkling system being provided with a plurality of sprinkling heads arranged so as to overlie each of said combustible objects, and control means operable through the actuation of one of said hydraulic means to provide automatic sprinkling to the combustible object associated with said hydraulic means and to the combustible objects in said area which are immediately adjacent to said combustible object associated with said hydraulic means.
Claim 13
Dependent Claim
188 words
An automatic sprinkling system for providing continuous sprinkling to an area which includes a plurality of combustible objects located at predetermined spaced positions, a water supply line for supplying water to each of said positions, a plurality of injector nozzles positioned beneath each of said objects and connected to said water supply line to deliver water therefrom to the lowermost surfaces of said objects, a pressure responsive member operatively associated with each of said nozzles to normally prevent the passage of water therethrough but which is arranged to be moved under the pressure of flames or expanding gases emanating from the associated combustible object to open said nozzle, a sprinkling head overlying each of said combustible objects, a control valve operatively associated with each sprinkling head to control the flow of water thereto, a hydraulic control line connecting the pressure responsive member and the control valve associated with each of said combustible objects, and means operatively associated with each of said pressure responsive members for relieving the pressure in the associated hydraulic line to open the control valve and permit the flow of water through said sprinkling head.
Claim 14
Dependent Claim
188 words
An automatic sprinkling system for providing continuous sprinkling to an area which includes a plurality of combustible objects located at predetermined spaced positions, a water supply line for supplying water to each of said positions, a plurality of injector nozzles positioned beneath each of said objects and connected to said water supply line to deliver water therefrom to the lowermost surfaces of said objects, a pressure responsive member operatively associated with each of said nozzles to normally prevent the passage of water therethrough but which is arranged to be moved under the pressure of flames or expanding gases emanating from the associated combustible object to open said nozzle, a sprinkling head overlying each of said combustible objects, a control valve operatively associated with each sprinkling head to control the flow of water thereto, a hydraulic control line connecting the pressure responsive member and the control valve associated with each of said combustible objects, and means operatively associated with each of said pressure responsive members for relieving the pressure in the associated hydraulic line to open the control valve and permit the flow of water through said sprinkling head.
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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |