Proving switch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 1, 2001
Grant Date -
N/A
app pub date -
Aug 19, 1999
filing date -
Aug 19, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A proving switch is provided for an electromagnetic device for brakes and clutches having an energization coil energizable to attract an armature to a magnet body, the coil exhibiting increasing current flow therethrough upon application of an energization voltage thereacross, and exhibiting a momentary dip upon engagement of the armature and magnet body. Detection circuitry senses the current dip and provides a status signal in response thereto, confirming the engagement.
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