Patents by Inventor Dipl.-Ing. B. Hefty

Dipl.-Ing. B. Hefty 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: 4566648
    Abstract: With a device for applying and conveying a hose-shaped protective covering for a toilet seat, the unwinding spool is supported by a switch tube which passes through it and which transmits the movement of a push button, protruding from the housing, to a switch arranged inside the housing. The unwinding spool can rotate loosely on the switch tube and is essentially independent from the switch tube's axial motion.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: January 28, 1986
    Assignee: Hygolet AG
    Inventors: Dipl.-Ing. B. Hefty, Arpad Hefty