Heating system shut-off system with radio/ultrasound communication between detector and existing safety switch or fuel valve
OwnerCarl F. Kass, Arthur W. Littleinventors
Life of this patent
Estimating the term…
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.
Claims9
A safety apparatus for shutting off a unit having a manually operated shut-off mechanism, comprising:
- a) environmental condition sensing means for placement proximate the unit for sensing a selected condition;
- b) signalling means connected to said sensing means for producing and transmitting an omnidirectional broadcast output signal consisting of a predetermined pattern of pulses when the selected condition exists;
- c) receiving means for receiving said broadcast output signal transmitted from said signalling means and for checking for said predetermined pattern of pulses;
- and
- d) electrically operated actuating means connected to said receiving means for mechanically operating the shut-off mechanism of the unit when said receiving means finds said predetermined pattern of pulses in said broadcast output signal, whereby the unit is shut off.
A safety apparatus for shutting off a unit having a manually operated shut-off mechanism, comprising:
- environmental condition sensing means for placement proximate the unit for sensing a selected condition and producing a light signal suitable for communication through a fiber-optic cable indicative thereof;
- a fiber-optic cable;
- receiving means for receiving the light signal from the fiber-optic cable and generating an electrical signal;
- and
- electrically operated actuating means connected to said receiving means for mechanically operating the shut-off mechanism of the unit when said receiving means receives said light signal;
- means for generating an alarm signal if the fiber-optic connection is broken, said means for generating including
- transceiver means attached to each end of the fiber-optic cable for communicating test signals along the cable;
- and alarm signaling means attached to at least one of the transceiver means for producing an alarm signal when said test signals are not successfully communicated along the fiber-optic cable.
Dependencies are inferred from the claim text.