Abstract: A restraining device for engaging an ICC bar on a truck including a base, a pivotal deck mounted on the base, a first hydraulic motor for raising the deck into engagement with the ICC bar, a hydraulic circuit responsive to an increase in hydraulic pressure in the first hydraulic motor for actuating a second hydraulic motor mounted on the deck to cause a pair of hands to engage the ICC bar and apply a force biasing it and the truck on which it is mounted toward a building wall.

Abstract: A dock leveler including a base frame, a deck having its inner side pivotally mounted on the base frame and having a lip pivotally mounted on its outer side, mechanism for raising and lowering the deck, and a fluid circuit and associated linkage for raising the lip in response to raising the deck and for lowering the lip in response to lowering the deck, the fluid circuit including a first piston and cylinder unit connected between the base frame and the deck, a second piston and cylinder unit connected between the deck and the lip, and a conduit coupling the first and second piston and cylinder units so that fluid is pumped from the first piston and cylinder unit to the second piston and cylinder unit during raising of the deck to raise the lip and the reverse is experienced during the lowering of the deck to lower the lip.

Abstract: A dock seal construction for a building having a door opening and side wall portions located to the sides of the door opening, the dock seal including a pair of elongated pad members secured on the side wall portions, a resilient flexible core in each of the pad members, a casing surrounding a substantial portion of the peripheries of the pad members, with the pad members each having an inclined outer side spaced from its respective side wall portion which extends at a slant toward the door opening so as to provide a relatively small amount of flexible core which is compressed by the rear of a truck.