Snap action type thermally responsive switching structure
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United States of America Patent
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-
Apr 9, 1985
Grant Date -
N/A
app pub date -
Sep 29, 1983
filing date -
Oct 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A snap action type thermally responsive switch comprising a fixed contact secured to a stationary frame, a rectangular thermally responsive plate having a central dish-shaped portion and being secured at one lengthwise end to the stationary frame and carrying a movable contact, the plate being determined at the ratio of length to width to be more than two, a calibrator screw projecting toward the convex side of the dish-shaped portion to depress thereagainst at the normal temperature, the calibrator means being positioned to contact the dish-shaped portion within the region ranging from the central point to a point away from the central point that is equal to one-third of the width of the plate in the direction toward the secured end thereof.
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