Patents by Inventor Jeffrey P. Earll

Jeffrey P. Earll 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).

  • Locking device for excavating equipment
    Patent number: 4433496
    Abstract: A locking device for securing a straddle-type adapter to the lip of an excavator wherein the C-clamp and wedge have cooperating arcuate surfaces and are bolted together whereby tightening the bolt moves the wedge on the arcuate surface of the C-clamp to tighten the fit of the adapter on the lip.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: February 28, 1984
    Assignee: ESCO Corporation
    Inventors: Larren F. Jones, Jeffrey P. Earll