Patents by Inventor Franz R. Zenker

Franz R. Zenker 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).

  • Plastic mop holder
    Patent number: 4422203
    Abstract: A holder for a string-type or similar mop head. The holder is preferably made entirely of plastic and comprises a yoke, a mop head support member connecting the free ends of the arms of the yoke, and a mop head clamping assembly reciprocally mounted inside the yoke for clamping a mop head against the support member. The mop holder is opened for insertion or removal of a mop head by shifting the support member longitudinally to unlatch it and then rotating the support member out of the plane defined by the arms of the yoke.
    Type: Grant
    Filed: July 9, 1982
    Date of Patent: December 27, 1983
    Assignee: White Mop Wringer Company
    Inventor: Franz R. Zenker