Patents by Inventor August O. Hinzman

August O. Hinzman 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: 5433687
    Abstract: According to one aspect of the invention, a free-weight exercise apparatus is provided that includes a left standard and a right standard that are removably joined in spaced-apart relationship by a cross connector. The left and right standards are preferably generally triangular in shape. According to another aspect, an apparatus is provided for assisting a person with dead-lift type exercises. The apparatus includes left and right lifter assemblies, each of which has an upper bar and a lower bar, the bars being maintained in a parallel, spaced-apart relationship by two vertically oriented piston-cylinder units. A spring is positioned co-axially around each of the piston-cylinder units. One of the ends of one of the two piston-cylinder units of each assembly is pivotally connected to one of the bars and the other ends of the two piston-cylinder units are rigidly connected to the bars, whereby binding of the piston-cylinder units is prevented.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: July 18, 1995
    Inventors: August O. Hinzman, Larry G. Beck, Christopher K. Hinzman