Patent ID: 9284135
Filing Date: 2016-03-15
CPC Classification: B65G

Claim Text:
1. A method for monitoring a sensed region of a pit floor of a dock leveler, the method comprising: positioning a first sensor adjacent a first rear corner of the pit floor and a second sensor adjacent a second rear corner of the pit floor; receiving a command to move a deck of the dock leveler from a stored upright position toward a range of operative positions; monitoring the sensed region of the pit floor via the first sensor and the second sensor, where the first sensor is positioned relative to the second sensor such that at least a portion of a first sensing area monitored by the first sensor overlaps at least a portion of a second sensing area monitored by the second sensor, wherein monitoring the sensed region includes only detecting movement of a body in a direction away from at least one of first sensor or the second sensor; and preventing the deck from moving toward the range of operative positions in response to detecting the body in the sensed region when the deck is in the stored upright position.