Combustible gas sensor
AssigneeMine Safety Appliances Company
InventorAlbert A. Poli
Life of this patent
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Abstract
A matched catalytically inactive compensator for use in a combustible gas sensor is made from a catalytically active detector. The catalytically active detector is exposed to a gas phase catalytic inhibitor such as hexamethyldisiloxane to completely destroy its catalytic ability thereby forming a compensator which has very similar chemical and physical properties to the untreated detectors.
Claims5
In a sensor for detecting a combustible gas comprising a catalytically active detector and a catalytically inactive compensator, the improvement comprising making the sensor from a plurality of chemically and physically similar catalytically active elements one of said elements being the catalytically active detector and creating the catalytically inactive compensator by taking another of the chemically and physically similar catalytically active elements and rendering it catalytically inactive by exposure to a gas-phase catalytic poison.
Dependencies are inferred from the claim text.