Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – Expansible or vaporizable fluid actuated
Patent
1987-10-06
1988-12-27
Broome, H.
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
Expansible or vaporizable fluid actuated
200835, 337319, H01H 3736, H01H 3712
Patent
active
047943637
ABSTRACT:
In a thermostat type operating temperature setting apparatus, a slider is employed to preset the operating temperatures of electric appliances by sliding the slider along a long sliding path. The operating temperature setting apparatus includes a frame, a converter for converting temperature changes into pressure variations, a thermostat switching member for selectively changing bistable switching positions in response to the pressure variations, a rod for adjusting the operating temperature, a tension spring coupled between the adjusting rod and the switching member, for biasing the adjusting rod in a first direction, a slider, and a cam lever pivotably journaled to a fulcrum fixed on the frame and connected to the adjusting rod, for being slidably in touch with the slider. The setting apparatus further includes a conical compression spring mounted on the adjusting rod, for biasing the adjusting rod in a second direction opposite to the first direction. Accordingly, the slider is slidable on the long sliding path with the substantially same sliding force over the long sliding path.
Hirata Shigeru
Takahashi Koichi
Yajima Hideyuki
Broome H.
Kabushiki Kaisha Saginomiya Seisakusho
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