Valve seat for automatic control system for water heaters

Details Valve seat for automatic control system for water heaters Valve seat for automatic control system for water heaters

1991-01-15

1991-10-29

Yeung, James C.

Stoves and furnaces

Liquid heater

Boiler receiving hot liquid or steam from stove or furnace

1375135, 137334, 137510, 137495, F24H 100

Patent

active

050606301

ABSTRACT:
A control valve for limiting the passage of water between a water source and a hot water tank within an automatic control system for water heaters. The control valve contains a sensing means for determining pressure differentials between the hot water tank, the water source and the delivery system. A rod is secured within the control valve housing for limiting the movement of the sensing means when the hot water heater ruptures of leaks. The sensing means also includes a valve seat which acts to control the entrance of water from the water source into the hot water tank. The valve seat defines a leak path which prevents water pressure loss in the hot water tank during a water cooling cycle.

REFERENCES:
patent: 1148568 (1915-08-01), Bees
patent: 3754563 (1973-08-01), Boals
patent: 4607615 (1986-08-01), Boals
patent: 4694651 (1987-09-01), Yardley et al.

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