Electric switches
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United States of America Patent
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Jun 11, 1985
Grant Date -
N/A
app pub date -
Sep 26, 1983
filing date -
Sep 27, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermally-responsive electric switch has a manually-releasable latching arrangement which makes use of a latching member (6) comprising an L-shaped or bellcrank lever having an integrally formed part (11) which constitutes a release member and connects to the end of one limb (9) of the L-shaped lever via a resilient hinge portion (12). The end of the other limb (8) of the L-shaped lever constitutes a latching abutment (10) for engagement with a member (3) of the switch. The latching member (6) is so arranged that, when the switch operates, the latching abutment (10) engages with the respective member (3) of the switch so as to preclude its return and thereby latch out the switch. Resetting is achieved by depression of the release member part (11) of the latching member (6), this causing the L-shaped lever to pivot generally about the junction of its two limbs such that the latching abutment (10) moves out of its latching position and permits the switch to reset.
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