Safety mechanism for hot-water dispenser

Details Safety mechanism for hot-water dispenser Safety mechanism for hot-water dispenser

1987-10-02

1988-10-04

Chambers, A. Michael

Fluid handling

With heating or cooling of the system

137607, 4192, 236 1212, F16K 4900

Patent

active

047749784

ABSTRACT:
Safety mechanisms for a plumbing fixture supplying hot and cold water through a common line. One mechanism is mechanical and the other electrical. The mechanical mechanism makes use of a mechanical linkage between the hot-water valve and an auxiliary cold-water valve to flush residual hot water out of the common line with an excess of cold water. The electrical mechanism uses a microprocessor to activate the cold-water valve when the hot-water valve is shut of, this flushing the residual hot water out of the line with an excess of cold water.

REFERENCES:
patent: 2708551 (1955-05-01), Record
patent: 3455335 (1969-07-01), Pekarek
patent: 3648724 (1972-03-01), Lloyd
patent: 3696996 (1972-10-01), Lloyd et al.
patent: 3938741 (1976-02-01), Allison
patent: 4359186 (1982-11-01), Kiendl
patent: 4420811 (1983-12-01), Tarnay et al.
patent: 4563780 (1986-01-01), Pollack

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