Safety System for Connection to a Toxic Gas Detector and a Power Feed

Abstract

A safety system for connection to a toxic gas detector and a power feed, comprising a first connection to the detector, a second connection to the power feed, and an interrupt device coupled to said first and second connections, the interrupt device including a circuit for detecting a toxic gas signal from said first connection, and a circuit for permitting, through said second connection, power to flow through the power feed wherein the detecting circuit activates said permitting circuit if the toxic gas signal represents a toxic gas concentration below a predetermined level.

1 - 66 . (canceled) 
     
     
         67 . A safety system for connection to a toxic gas detector and a power feed, comprising:
 (a) a first connection to the detector;   (b) a second connection to the power feed; and   (c) an interrupt device coupled to said first and second connections, said interrupt device including   (d) a circuit for detecting a toxic gas signal from said first connection, and   (e) a circuit for permitting, through said second connection, power to flow through the power feed;   (f) wherein said detecting circuit activates said permitting circuit if said toxic gas signal represents a toxic gas concentration below a predetermined level.   
     
     
         68 . The safety system of  claim 67  wherein said permitting circuit and said detecting circuit are combined into an interrupt circuit. 
     
     
         69 . The safety system of  claim 68  wherein said interrupt circuit includes a relay. 
     
     
         70 . The safety system of  claim 67  wherein said interrupt circuit includes a normally open switch. 
     
     
         71 . The safety system of  claim 67  wherein said first connection, said second connection, and said interrupt device are incorporated into a unitary device. 
     
     
         72 . The safety device of  claim 70  wherein said unitary device is a wall-mountable housing. 
     
     
         73 . The safety system of  claim 67  wherein the detector, said first connection, said second connection, and said interrupt device are incorporated into a unitary device. 
     
     
         74 . The safety device of  claim 67  wherein said unitary device is a wall-mountable housing. 
     
     
         75 . The safety system of  claim 67  wherein the detector, the power feed, said first connection, said second connection, and said interrupt device are incorporated into a unitary device.