Heating system shut-off system with radio/ultrasound communicati

Details Heating system shut-off system with radio/ultrasound communicati Heating system shut-off system with radio/ultrasound communicati

1995-01-18

1997-09-23

Paschall, Mark H.

Electric heating

Heating devices

With protective means for heater

219502, 219497, 219506, 34082569, 34082572, H05B 102

Patent

active

056700741

ABSTRACT:
A safety apparatus for shutting off a unit having a manually operated power interruption switch or fuel supply valve upon detecting a predetermined condition where the condition is detected remotely from the location of the switch or valve. The sensor for detecting the predetermined condition communicates with a receiver that contacts an actuator for opening the interrupt switch or closing the fuel supply valve without an interconnecting electrical wire.

REFERENCES:
patent: 4659909 (1987-04-01), Knutson
patent: 4818970 (1989-04-01), Natale et al.
patent: 4959647 (1990-09-01), Daigle
patent: 4969508 (1990-11-01), Tate et al.
patent: 5189392 (1993-02-01), Kass et al.
patent: 5511553 (1996-04-01), Segalowitz

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