Patents by Inventor Marvin C. Hanz

Marvin C. Hanz 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: 5016601
    Abstract: A slingshot includes a hand grip and a crotch which are adjustably mounted on a shoulder engaging stock. The crotch has a sighting element which is adjustable for elevation and windage. The sighting element extends into the field of view and is flexible to allow the projectile to push it out of the way without affecting the path of the projectile.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: May 21, 1991
    Inventors: James C. Ferguson, Marvin C. Hanz, Galen A. Moeller
  • Patent number: 4289432
    Abstract: An adapter for use with a commercially available flat wood bit which enables a previously bored hole formed in a work piece to be accurately and easily enlarged. The adapter includes spaced keepers which snugly receive the opposed flats of the bit therebetween, with the pilot bit being centered within a cavity formed within the adapter, so that the adapter is properly aligned respective to the wood bit and to the previously formed hole. The adapter includes a number of cylinders of various outside diameters which enables a single adapter body to be used in conjunction with a number of different size bits which are used to form a number of different diameter holes.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: September 15, 1981
    Inventors: Johnny C. Elkins, Marvin C. Hanz
  • Patent number: 4058221
    Abstract: A rack for supporting objects from a window and gasket assembly. The rack is comprised of first and second elongated support members which are placed together in overlapping relationship so as to enable each member to be adjustably moved relative to the other so that a blade formed at each free depending end of the members can be inserted under the gasket adjacent to the window glass where the gasket holds the member so that objects can be supported from the rack.Outwardly extending teeth penetrate the gasket and maintain the rack stationary relative to the window.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: November 15, 1977
    Inventors: Johnny C. Elkins, Marvin C. Hanz
  • Patent number: 3931893
    Abstract: A rifle mounting rack for sliding window assemblies of a truck, comprised of a pair of spaced support members which are secured to a vehicle sliding window assembly in laterally spaced relation. Each support member comprises co-acting slide members having rifle receiving cradle members depending therefrom, and diametrically opposed window frame engaging members which can be slidably received within a flange of the rear window assembly of a vehicle.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: January 13, 1976
    Inventors: Johnny C. Elkins, Marvin C. Hanz
  • Patent number: D322832
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: December 31, 1991
    Inventors: James C. Ferguson, Marvin C. Hanz, Galen A. Moeller