Patents by Inventor Francis A. Lubinski

Francis A. Lubinski 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).

  • Operator mechanism having reduced handle throw and improved handle lock
    Patent number: 4760220
    Abstract: A handle (52) is guided for linear sliding movement within a housing (38) mounted to the front of a removable control unit (16) and has a hinged connection (52c,64) with the forward end of a drive lever (60) which is pivotally mounted (62) within the control unit and linked (68,72) to circuit interrupting apparatus (26) mounted in the control unit for reducing the handle throw necessary to operate the apparatus. A slide bar (84) is spring biased (86) to an extended position with the operator in the ON position to engage a fixed structure (92) of the cabinet to prevent withdrawal or insertion of the control unit when the apparatus is in an ON condition. The slide bar is driven to a retracted position by the handle (52d,88) when moved to the OFF position. A handle locking plate (94) is lockable in a position of interference with the handle to prevent movement from OFF to ON positions, and has a breakaway tab (94f) removable to permit locking the handle against movement from ON to OFF.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: July 26, 1988
    Assignee: Eaton Corporation
    Inventors: Ronald J. Fritsch, Francis A. Lubinski