Heating system shut-off system using detector and existing safet

Details Heating system shut-off system using detector and existing safet Heating system shut-off system using detector and existing safet

1991-06-24

1993-02-23

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340500, 340532, 340632, 25112904, G08B 1900

Patent

active

051893924

ABSTRACT:
A safety apparatus for shutting off a unit having a manually operated power interruption switch upon detecting a predetermined condition. In addition, to power interruption a fluid fuel supply to a combustion unit having a manually operated interruption valve arranged in the line is also interrupted.

REFERENCES:
patent: 3665399 (1972-05-01), Zehr et al.
patent: 4668940 (1987-05-01), Beard et al.
patent: 4788529 (1988-11-01), Lin
patent: 5003162 (1991-03-01), Townsend et al.

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