×

Emergency gas or fuel shut-off device

  • US 5,730,170 A
  • Filed: 09/30/1996
  • Issued: 03/24/1998
  • Est. Priority Date: 09/30/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An emergency fuel shut-off device for interrupting the flow of fuel to a burner in the event of malfunction, said device comprising:

  • a normally closed, spring loaded fuel shut-off valve having a valve stem which opens the valve when it is pulled out but which is biased toward a closed position to provide a biased valve stem;

    a cable affixed to said valve stem, said cable exerting continuous tension by the biased valve stem to hold said valve stem in an open position;

    a cable termination station, said termination station including means to hold a remote end of said cable in a fixed, tensioned position said cable termination station further including a turnbuckle to adjust the length of said cable and wherein said cable termination station includes cable release means; and

    a plurality of fusible link interrupts positioned along said cable at predetermined locations, each of said fusible links being held in tension by the biased valve stem whereby when at least one of said fusible link interrupts is melted, the tension in the cable is released and the valve stem of the spring-loaded fuel shut-off valve is permitted to return to its normally closed position thereby shutting off any flow of fuel through said valve.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×