We made a video of how our ratcheting, shift to neutral gearbox works. What was not describe in this video is the mechanism that disengages the dog gear. This was accomplished by a 1.5" bore, 6" stroke cylinder on a 12" lever arm. The dog is re-engaged by the internal spring.
http://www.youtube.com/watch?v=xx3I2...u8SDSA&index=5
I'm not sure if this video will be helpful but it may depict what others were describing.