Rotary switch with common contact
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United States of America Patent
Stats
-
May 3, 1988
Grant Date -
N/A
app pub date -
Apr 29, 1987
filing date -
Apr 29, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The housing has a cylindrical cavity and central bore in the bottom wall for rotatably receiving a post on the cylindrical control member and the terminals have upper ends defining circumaxially spaced fixed contacts. A tubular conductor surrounds the post and is connected to one such fixed contact to provide a common contact adjacent all of the other fixed terminals. A ball is biased downwardly into contact with the common contact and selectively with the fixed contacts. The ball is provided in a recess of the rotary control member and moves over protuberances in the bottom wall of the housing to selectively connect the common contact with the individual fixed contacts.
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