Rotary mechanical latch

DWPI Title: Rotary mechanical latch for positive latching and unlatching of rotary device e.g. electric motor, has leading latch cam and trailing latch cam that are affixed to face of flange and operatively arranged to cooperatively engage cam arm
Abstract: A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.
Use: Rotary mechanical latch for positive latching and unlatching of rotary device e.g. electric motor.
Advantage: The rotation of drive assembly by mechanical vibrations can be prevented reliably.
Novelty: The latch (100) has a leading latch cam (120) and a trailing latch cam (122) that are affixed to face of a flange (118) and operatively arranged to cooperatively engage a cam arm in a latched state, such that counter-clockwise rotation of cam arm generates counter-clockwise torque applied to flange and clockwise rotation of cam arm generates clockwise torque applied to flange. The cam arm is disengaged in an unlatched state. The rotation of shaft is prevented by latched state and rotation of shaft is allowed by unlatched state.
Filed: 7/1/2009
Application Number: US2009496413A
Tech ID: SD 10910.1
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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