Patent ID: 9393890
Filing Date: 2016-07-19
CPC Classification: B60N

Claim Text:
1. A locking mechanism for a movable support platform, said movable support platform being configured to be mounted on a stationary structure on which said movable support platform moves, said locking mechanism comprising: a first lock that prevents movement of said movable support platform when in a locked position, a second lock operatively connected to said first lock to selectively hold said first lock in a locked position, said second lock having a release handle, a locking lever for operating said first lock, the release handle being operable in a first position to place the second lock in a locked condition to hold the first lock in said locked position until said release handle is moved to a second position to release the second lock to permit movement of the locking lever to place said first lock in an unlocked position, and a mechanism that maintains said release handle in said second position when said first lock is in said unlocked position.