Patents by Inventor Douglas L. Walters

Douglas L. Walters 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).

  • Patent number: 4811924
    Abstract: A vehicle support stand utilizing a slidable spine member to maintain a vehicle at a desired preselected vertical position. The latter is positively achieved through the use of a control plate which serves a wedging relationship with respect to the spine member at a release position, and for the free vertical movement of the spine member at a manually controlled position. Spring means serve to continually urge the control plate into the aforesaid wedging relationship.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: March 14, 1989
    Inventor: Douglas L. Walters
  • Patent number: 4424983
    Abstract: An implement coupling arrangement characterized by a plate selectively positionable along an upstanding column onto which an implement connecting sleeve is slidably received, where the aforesaid plate supports a conventional jack for accomplishing vertical adjustment of the implement to a desired hitching height. The jack is arranged for rotation from a use position to a transporting position, where provision is made for maintaining the jack handle at a fixed location during transporting.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: January 10, 1984
    Inventor: Douglas L. Walters