Patents by Inventor Larry M. Witt

Larry M. Witt 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).

  • Power clamp with enclosed track
    Patent number: 5064177
    Abstract: A power clamp having linear bearing tracks for actuating toggle linkage characterized by a combination of fixed and moving cover elements completely enclosing the bearing tracks to prevent intrusion of foreign materials.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: November 12, 1991
    Assignee: Delaware Capital Formation
    Inventors: Larry M. Witt, Bruce K. Sherman
  • Power actuated cam clamp
    Patent number: 4887803
    Abstract: Power actuated cam clamp having mounting base with side flanges for pivotally mounted cam surfaced clamp arm, cam roller actuating link, and fluid cylinder elements. Uniform cam rise providing self-locking angle over substantial clamp range and rapid travel 90.degree. opening are accomplished with direct piston rod actuation of roller link.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: December 19, 1989
    Inventor: Larry M. Witt
  • Power clamp with track wiper
    Patent number: 4854564
    Abstract: Power clamp with track wiper for protecting anti-friction roller bearings running in close fitting reaction tracks from buildup of powdery substance encountered on certain welding conditions which is carried by the atmosphere and clings to the bearing track leading to eventual binding after prolonged reciprocation. The track wiper is carried on the bearing shaft with loose-fitting relation to each roller bearing but with close scraping relation to the bearing track surfaces.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: August 8, 1989
    Assignee: Delaware Capital Formation, Inc.
    Inventors: Alexander W. McPherson, Larry M. Witt