Electricity: circuit makers and breakers – Electric switch details – Actuators
Reexamination Certificate
2008-01-01
2008-01-01
Friedhofer, Michael A (Department: 2832)
Electricity: circuit makers and breakers
Electric switch details
Actuators
C200S050050, C074S527000, C074S575000
Reexamination Certificate
active
11343405
ABSTRACT:
A ball ratchet mechanism suitable for use with an electrical disconnect employs a track and drive surface that engage the ball so as to capture it without significant shear force being applied to ridges of the track. In this way, the shape of the track can be optimized for smooth ratcheting action without the risk of high torques shearing track ridges.
REFERENCES:
patent: 4146764 (1979-03-01), Wilson
patent: 4183260 (1980-01-01), Wagner et al.
patent: 4263486 (1981-04-01), Taylor
patent: 6578447 (2003-06-01), Fraser
patent: 6604440 (2003-08-01), Wessel et al.
patent: 6989499 (2006-01-01), Bortolloni et al.
patent: 7015403 (2006-03-01), Houck et al.
patent: 7071427 (2006-07-01), Houck et al.
Houck, III Theodore John
Miller James Peter
Ning Jie
Friedhofer Michael A
Kuszewski Alexander R.
Quarles & Brady LLP
Rockwell Automation Technologies Inc.
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