Patents by Inventor Allen C. Wright

Allen C. Wright 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).

  • Ladder lock
    Patent number: 4364451
    Abstract: A locking mechanism for a ladder of the extension type having sections slidable over each other where such locking mechanism is affixed to one section and hooks over a rung of the other section to secure the two sections at the desired height, and where such locking mechanism is withdrawable from the plane of the second section during raising or lowering of this section such that it does not bounce and bump against the rungs of the second section during raising or lowering.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: December 21, 1982
    Assignee: Utility Products, Inc.
    Inventor: Allen C. Wright
  • Adjustable self-locking level support
    Patent number: 4095671
    Abstract: The invention relates to a self-locking level support primarily for ladders and the like, the support being adjustable to fit ladders of different widths.
    Type: Grant
    Filed: February 1, 1974
    Date of Patent: June 20, 1978
    Assignee: Utility Products, Inc.
    Inventors: David E. Forristall, Allen C. Wright
  • Level support guard
    Patent number: 4073367
    Abstract: In a ladder leveler of the type manually actuated through a clutch plate to free a leg extension for adjustibility purposes, a protective guard is applied to the clutch plate in a manner to preclude forces being accidently applied to the clutch plate when the leveler is in use to thereby avoid possibility of tragic accidents.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: February 14, 1978
    Assignee: Utility Products, Inc.
    Inventor: Allen C. Wright