Thermostat having thermally responsive means for arresting the movement of one of the contacts upon cooling of the thermostat

• US 3,342,961 A
• Filed: 12/01/1964
• Issued: 09/19/1967
• Est. Priority Date: 09/19/1960
• Status: Expired due to Term

• Current Assignee: Homer W. Deaton, Raymond M. Hutchinson
• Original Assignee: Homer W. Deaton, Raymond M. Hutchinson
• Inventors: Deaton, Homer W., Hutchinson, Raymond M.
• Application Number:
  US04/415,113
• Time in Patent Office: 1,022 Days
• US Class Current: 337/36
• CPC Class Codes: D06F 2103/32 Temperature
• CPC Class Codes: D06F 2105/62 Stopping or disabling machine operation
• CPC Class Codes: D06F 34/26 Condition of the drying air, e.g. air humidity or temperature
• CPC Class Codes: H01H 37/52 actuated due to deflection of bimetallic element

Claims

4. A THERMOSTAT FOR SENSING A FALLING TEMPERATURE COMPRISING, A SUPPORT HAVING FIRST AND SECOND ELECTRICAL CONNECTORS, BRAKE MEANS HAVING FIRST AND SECOND BRAKE PORTIONS, SAID FIRST BRAKE PORTION MOVABLY CONNECTED RELATIVE TO SAID SUPPORT AND INCLUDING AN ARM FASTENED THERETO FOR MOVEMENT THEREWITH, MEANS ELECTRICALLY CONNECTING SAID ARM TO SAID FIRST ELECTRICAL CONNECTOR, A FIRST THERMALLY RESPONSIVE DEVICE CONNECTED TO SAID SECOND ELECTRICAL CONNECTOR, BIASINGLY ENGAGED WITH SAID ARM AND ADAPTED BY MOVEMENT IN ONE DIRECTION UPON A RISE IN TEMPERATURE TO MOTIVATE SAID FIRST BRAKE PORTION, SAID SECOND BRAKE PORTION INCLUDING A SECOND THERMALLY RESPONSIVE MEANS ON SAID SUPPORT IN JUXTAPOSITION TO SAID FIRST BRAKE PORTION AND MOVABLE UPON A RISE IN TEMPERATURE INOT ENGAGEMENT WITH SAID FIRST BRAKE PORTION IN A MANNER TO PERMIT MOTIVATION OF SAID FIRST BRAKE PORTION BY SAID FIRST THERMALLY RESPONSIVE DEVICE WHEN SAID FIRST THERMALLY RESPONSIVE DEVICE IS MOVING IN SAID ONE DIRECTION ONLY, THE SECOND THERMALLY RESPONSIVE MEANS OF SAID SECOND BRAKE PORTION REMAINING ENGAGED WITH SAID FIRST BRAKE PORTION FOR RETAINING SAID ARM FOR A PERIOD DURING WHICH SAID FIRST THERMALLY RESPONSIVE DEVICE MOVES OUT OF ENGAGEMENT WITH SAID ARM IN RESPONSE TO A DECREASE IN TEMPERATURE THEREBY TO BREAK A CIRCUIT BETWEEN SAID FIRST AND SECOND ELECTRICAL CONNECTORS.