Circuit breaker
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 11, 2017
Issued Date -
N/A
app pub date -
Sep 29, 2015
filing date -
Apr 3, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit breaker includes a main body case, an operating handle having a base portion and a knob portion protruding outwardly through a handle window frame opened in a cover of the main body case; a first shutter arranged between the base portion of the operating handle and the handle window frame, and disposed on the base portion, the first shutter being formed with a loose-fit hole to loosely fit the knob portion therethrough; and a second shutter disposed on the first shutter to move along with the knob portion. At ON and OFF positions of the operating handle, the first shutter extends beyond a front/rear edge of the handle window frame in a front-back direction to close the handle window frame, and the second shutter extends beyond a front/rear edge of the loose-fit hole in the front-back direction to close the loose-fit hole.
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