Patents Assigned to Proprietary Main, Inc.
  • Positioning fixture
    Patent number: 5243745
    Abstract: The present invention is a fixture primarily for use with a machining center. The fixture has a plurality of face plates mounted on an interior casing and moveable jaws exposed on the face plates. Parts to be machined can be placed between the jaws and gripped by the jaws for easy and quick setup of various machining operations. Assemblies for actuating the jaws are described.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: September 14, 1993
    Assignee: Proprietary Main, Inc.
    Inventor: Bernard T. Varnau
  • Positioning fixture
    Patent number: 5158487
    Abstract: The present invention is a fixture primarily for use with a machining center. The fixture has a plurality of face plates mounted on an interior casing and moveable jaws exposed on the face plates. Parts to be machined can be placed between the jaws and gripped by the jaws for easy and quick setup of various machining operations. Assemblies for actuating the jaws are described.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: October 27, 1992
    Assignee: Proprietary Main, Inc.
    Inventor: Bernard T. Varnau