Patents by Inventor Dominic J. Pealer

Dominic J. Pealer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4823421
    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.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: April 25, 1989
    Assignee: Eriks Holding N.V.
    Inventors: Joseph P. H. Kleynjans, Walenty Kalempa, Dominic J. Pealer