Safety device for water-pipes

Details Safety device for water-pipes Safety device for water-pipes

1984-08-03

1985-06-11

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

137462, 137498, F16K 1700

Patent

active

045222290

ABSTRACT:
The safety device makes it possible to cut the water supply off quickly when there is a very low flow of water such as occurs when there is a leak, to cut off the water supply after predetermined time with normal water consumption, and to cut the water supply off very quickly when a certain predetermined maximum flow is exceeded as would occur with a fractured pipe. The safety device is automatically returned to its initial position when the water consumption is stopped and the shut off is first indicated by a significant reduction in flow. The device can also be manually returned to its initial position after a shut-off.

REFERENCES:
patent: 2659383 (1953-11-01), Frager
patent: 3481362 (1969-12-01), Dollison
patent: 4167194 (1979-09-01), Matsuda

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