Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With mechanical timing means
Patent
1976-10-12
1978-03-14
Harris, George
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With mechanical timing means
337305, 337313, H01H 3736
Patent
active
040793478
ABSTRACT:
A control device adapted to select a set-point temperature for a condition responsive device. The control device has temperature selecting means rotatable through a preselected temperature range generally between a pair of opposite rotated positions, and resilient means is disposed for engagement with a part of the temperature selecting means upon rotation thereof in response to a rotative applied force from one of the opposite rotated positions toward the other thereof so as to arrest the rotation of the temperature selecting means in a predetermined rotated position between the opposite rotated positions. Means is movable in response to another applied force thereon for driving the resilient means toward a displaced position disengaged from the part of the temperature selecting means, and the temperature selecting means is thereafter further rotatable upon further exertion of the rotative applied force thereon from the predetermined rotated position toward the other opposite rotated position. Means is provided on the temperature selecting means for camming engagement with the resilient means so as to maintain the resilient means urged toward its displaced position upon the release of the another applied force on the driving means.
REFERENCES:
patent: 2150203 (1939-03-01), Boudurant
patent: 3019667 (1962-02-01), Bann
patent: 3244841 (1966-04-01), Gardes et al.
patent: 3430515 (1969-03-01), Lawrence
patent: 4035752 (1977-07-01), Anderson
General Electric Company
Harris George
Papin Joseph E.
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