Patents by Inventor Walter Heller

Walter Heller 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).

  • Reinforced concrete appliance
    Patent number: 4005560
    Abstract: An appliance for holding concrete reinforcing rods either in relation to each other or spaced relative to a mold surface while the plastic concrete is being poured and hardens. The appliance consists of a wire or rod having a portion helically preformed to have a pitch and internal diameter so that it can be wrapped around the reinforcing rod without exceeding it's elastic limit to tightly grip the rod and a laterally-extending portion which may either engage the surface or be helically preformed to be wrapped around another rod.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: February 1, 1977
    Assignee: Preformed Line Products Company
    Inventors: Herbert John Simpson Braime, Walter Heller