Patents by Inventor Albert E. Gertz

Albert E. Gertz 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: 3943310
    Abstract: A two part cylindrical insulation body for a male electrical plug is provided with a recess at the abutting end face and a two section prong has sections carried by respective body portions with flexible switch contact within the recess and facing each other. A rotatable sleeve mounted on the body in concentric fashion for rotation is provided with an integral sector-shaped projection on its inner periphery which may be rotated to place an insulative portion between the flexible contact or a conductive insert to complete an electrical circuit between the prong sections.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: March 9, 1976
    Inventor: Albert E. Gertz
  • Patent number: 3930797
    Abstract: A container is mounted in an air duct, the container having an open top and adjustable opening means on the opposite side. An air dispersible substance is placed in the container and is released into the air stream of the duct according to the degree of opening of the opening means.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: January 6, 1976
    Inventor: Albert E. Gertz