|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.