Patents by Inventor John A. Wisner

John A. Wisner 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: 4437203
    Abstract: A simplified and more convenient cleaning head for a wall washing machine includes a shell adapted for holding in the hand or mounting at one end of an elongated wand and also adapted to receive cleaning and rinse fluid lines contained in a vacuum hose attached to the shell. A fluid distribution manifold having a hinged connection in one end of the shell receives cleaning and rinsing fluids from a fluid switching valve in the shell and also serves to securely retain a replaceable sponge insert within the shell without the necessity of employing other fastening means for the sponge insert.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: March 20, 1984
    Inventor: John A. Wisner