Patents by Inventor Harry Harden

Harry Harden 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: 4975009
    Abstract: A wedge and bolt assembly serves to temporarily connect two prefabricated panel units for use in assembling a concrete wall form. A bolt support member is mountable on a prefabricated panel, and includes a first hollow passage formed therethrough to slidingly receive a bolt. The bolt has a main body portion with two recesses formed therein to receive an engaging member. The bolt also has a projecting end with a transverse slot formed therethrough for receiving a wedge after insertion through extending flanges of aligned panel units. The bolt support member includes a second hollow passage formed therein transverse to the first hollow passage in which an engaging member is disposed, the engaging member being biased into the recesses of the bolt by a coil spring or the like. A set screw or the like is inserted in the second passageway of the bolt support member to retain the spring and engaging member therewithin.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: December 4, 1990
    Inventors: John T. Easton, Harry Harden