Patents by Inventor Davis L. Hemmings

Davis L. Hemmings 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: 4531869
    Abstract: An improved storable tie-down device. The tie-down device has a center bar ith a pair of spared, parallel V-shaped arms extending from the center bar. A mounting arm extends outward from the V-shaped legs. A housing located below the surface of a frame holds the mounting arms so that the tie-down device can be rotated from a retracted storage position to an active attachment position.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: July 30, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Davis L. Hemmings
  • Patent number: 4382609
    Abstract: An A-frame trailer front end construction configured to alternately accept non-dampered connector for co-action with the towing vehicle or a damped connector without structural modification of the A-frame. Switch over between the damped and non-damped towing modes can be accomplished very quickly by the loosening and unloosening of mounting bolts between the connector and A-frame. The system enables the human operator to select the type of connection most conducive to human driver comfort, minimum inertial loading between the towed and towing vehicle, and lessened load forces on the vehicle brakes and suspension.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: May 10, 1983
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Davis L. Hemmings