B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/16
B05B 15/00 (2006.01) A62C 35/10 (2006.01) A62C 35/64 (2006.01) A62C 37/00 (2006.01) B05B 5/08 (2006.01) B05B 12/12 (2006.01)
Patent
CA 1165108
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.
382788
Bentley Stanley L.
Bloomer Frank A.
Ransburg Corporation
Smart & Biggar
LandOfFree
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