Patent ID: 9428350
Filing Date: 2016-08-30
CPC Classification: B65G,E01D

Claim Text:
1. A mobile loading dock comprising a planar ramp member having: a lower end terminating in a lower edge; an upper end including an upper edge having a lip, the lip resting on a trailer bed and moving in conjunction with the movement of the trailer bed; a ramp underside having a wheel assembly thereupon, the wheel assembly having (a) a hydraulic member; (b) a leg hingedly attached to the ramp underside; and (c) a wheel attached to the leg at an axle and disposed to always stay in contact with a ground surface beneath the mobile loading dock; and a hydraulic velocity fuse, whereby if the trailer bed moves while the lip is resting on the trailer bed the hydraulic velocity fuse engages and prevents free fall of the ramp member to the ground and the wheel provides stability for the ramp if the lip becomes unsupported.