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Apparatus And Method For Automatically Detecting And Alerting Of Gas-Out Conditions For A Gas Appliance During Operation

  • US 20120293335A1
  • Filed: 07/30/2012
  • Published: 11/22/2012
  • Est. Priority Date: 12/29/2007
  • Status: Active Grant
First Claim
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1. An apparatus for detecting gas-out conditions of a gas-operated appliance during operation, comprising:

  • (a) a piston carried within a piston cylinder and movable in response to the flow of gas through said piston cylinder between a first position and a second position, said first position and said second position being spaced from one another and defining an intermediate zone therebetween where said piston substantially restricts the flow of gas through said piston cylinder;

    (b) a first sensor operatively disposed for activation upon movement of said piston to said first position and deactivation upon movement of said piston away from said first position;

    (c) a second sensor operatively disposed for activation upon movement of said piston to said second position and deactivation upon movement of said piston away from said second position;

    (d) a gas flow analyzer operatively connected to said first sensor and said second sensor, said flow analyzer being configured to detect gas-out conditions of the gas-operated appliance during operation based on characteristics of the movement of said piston between said first position and said second position within said piston cylinder.

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