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Patent
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H01H 3/16 (2006.01) H01H 35/00 (2006.01)
Patent
CA 1132637
C-3165 REACTION SWITCH FOR AN ACTUATOR DRIVE SYSTEM Abstract of the Disclosure: A dual snap-action electric switch is used in an electric motor antenna drive to stop antenna movement when predetermined force levels to longi- tudinal movement are encountered. The switch has two actuator arms operated by actuator tabs maintained in spaced relation by a primary spring. A secondary spring urges one actuator tab against the primary spring. The actuator tabs are movable longitudinally in response to longitudinal movement of an electric motor driven worm shaft to open one switch at a predetermined force level and the other switch at a higher predetermined force level, to stop the motor, such as when respective full extension or retraction of the antenna is reached.
357143
Milbrandt Carlton A.
Schoen Roy C.
General Motors Corporation
Gowling Lafleur Henderson Llp
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