Hermetic single phase motor protector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 6, 2004
Grant Date -
Oct 31, 2002
app pub date -
Oct 4, 2001
filing date -
Dec 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hermetic motor protector (10) has a non-current carrying snap-acting thermostatic disc (26) freely disposed on a disc seat (22a) having a tab (22c) projecting through a centrally located aperture (26a) in the disc. An outer peripheral portion of the disc is received under a leg (22e) of the bracket limiting upward motion of the disc at that location and causing the disc to act as a lever pivoting about the disc seat (22a) as a fulcrum so that the outer peripheral portion of the disc diametrically opposite to leg (22e) engages a motion transfer bump (28d) formed on a movable contact arm cantilever mounted on leg (22e) when the disc snaps from its normally contacts engaged configuration to its opposite dished contacts open configuration when the disc is heated to its actuation temperature by a heater element (24) along with heat conducted from a motor with which the protector is used.
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