Fire extinguishers – Automatic receptacles
Patent
1980-07-30
1982-11-02
Rolla, Joseph J.
Fire extinguishers
Automatic receptacles
169 54, 169 5, 118629, A62C 3502
Patent
active
043568688
ABSTRACT:
A fire-extinguishant system includes a source of extinguishant, such as carbon dioxide, a fusible length of plastic tubing, such as one-half-inch-outside-diameter polyethylene tubing, with the end closed, and a conduit and valve system for connecting the extinguishant source to the fusible tubing. The valving system pressurizes the fusible tubing at a low pressure, and this low-pressure signal is coupled to a pilot input port in the valve system. When this low-pressure pilot signal is interrupted, the piloted valve switches to supply extinguishant at full pressure through the fusible tubing. If the fusible tubing has been melted, such as by a fire, the extinguishant exits through the melted portion to extinguish the fire. The low-pressure pilot signal can, however, be interrupted manually by the valve system. In this case, the full-pressure extinguishant supply to the fusible tube ruptures the tube and releases extinguishant. This provides a manual extinguishant control for the system.
REFERENCES:
patent: 1616974 (1927-02-01), Josephson
patent: 2265810 (1941-12-01), Lowe et al.
patent: 2561229 (1951-07-01), Rider
patent: 2585039 (1952-02-01), Rooke
patent: 2601900 (1952-07-01), Rand et al.
patent: 3595318 (1971-07-01), Merdinyan
patent: 3616860 (1971-11-01), Willms
patent: 3827502 (1974-08-01), Lockwood
patent: 3865192 (1975-02-01), Dunphy
patent: 4248309 (1981-02-01), Hofle et al.
"Ansul A-101 Vehicle Fire Suppression Systems"; The Ansul Co.; Marinette, Wi.; 54143, 1980.
"Ansul Detection and Control Equipment Data Sheet SCAD.sub..TM. (Self-Contained Actuation and Detection System)"; The Ansul Co., Marinette, WI 54143; 1981.
Bentley Stanley L.
Bloomer Frank A.
Noland Kenneth
Ransburg Corporation
Rolla Joseph J.
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