Patents by Inventor Earnest Roberts Harrison, Jr.

Earnest Roberts Harrison, Jr. 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).

  • Self-synchronizing pulley/winch apparatus and operating method for cable having electronic or other protruding elements spaced along its length
    Patent number: 5906325
    Abstract: A winch 100 is provided for taking up or paying out cable 13 without damaging protrusions 14 spaced along the cable from potentially high compressive forces applied to the cable when it is wound over drum members 16, 18, 20 of each of a pair of drum mechanisms 30A and 30B. The winch is operated so that the cable is pulled over the drum members and wound about the two drum mechanisms as a unit, such that successive cable protrusions are always maintained in successive cable path spaces between the drums of each drum mechanism.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: May 25, 1999
    Assignee: Northrop Grumman Corporation
    Inventor: Earnest Roberts Harrison, Jr.