Hot-box detector alarm circuit
First Claim
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2. A HOT-BOX DETECTING SYSTEM COMPRISING PLURAL HEAT SENSOR MEANS TO PRODUCE ELECTRICAL SIGNALS RESPECTIVELY IN RESPONSE TO INCIDENT RADIANT ENERGY AND ADAPTED TO BE MOUNTED ON OPPOSITE SIDES OF A RAILROAD TRACK, RATIO FORMING MEANS COUPLED TO THE RESPECTIVE OUTPUTS OF SAID PLURAL HEAT SENSOR MEANS TO DEVELOP AN ELECTRICAL POTENTIAL IN RESPONSE TO THE RATIO OF ELECTRICAL SIGNALS FROM A PAIR OF SAID HEAT SENSOR MEANS WHEN SAID RATIO EXCEEDS A PREDETERMINED THRESHOLD, AND MEANS RESPONSIVE TO SAID RATIO MEANS TO PRODUCE AN INDICATION WHEN SAID PREDETERMINED THRESHOLD IS ATTAINED.
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2 Claims
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2. A HOT-BOX DETECTING SYSTEM COMPRISING PLURAL HEAT SENSOR MEANS TO PRODUCE ELECTRICAL SIGNALS RESPECTIVELY IN RESPONSE TO INCIDENT RADIANT ENERGY AND ADAPTED TO BE MOUNTED ON OPPOSITE SIDES OF A RAILROAD TRACK, RATIO FORMING MEANS COUPLED TO THE RESPECTIVE OUTPUTS OF SAID PLURAL HEAT SENSOR MEANS TO DEVELOP AN ELECTRICAL POTENTIAL IN RESPONSE TO THE RATIO OF ELECTRICAL SIGNALS FROM A PAIR OF SAID HEAT SENSOR MEANS WHEN SAID RATIO EXCEEDS A PREDETERMINED THRESHOLD, AND MEANS RESPONSIVE TO SAID RATIO MEANS TO PRODUCE AN INDICATION WHEN SAID PREDETERMINED THRESHOLD IS ATTAINED.
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Current AssigneeWilliam M. Pelino
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Original AssigneeWilliam M. Pelino
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InventorsPelino, William M.
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Application NumberUS04/014,931Time in Patent Office1,324 DaysField of SearchUS Class Current246/169.00DCPC Class CodesB61K 9/06 by detecting or indicating ...
