Patents by Inventor David L. Wirth

David L. Wirth 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: 5177831
    Abstract: A cloth covered sponge mop for cleaning, waxing polishing or drying a motor vehicle which includes a sponge element, a handle with a protective guard, a connecting plate for connecting the sponge element to the handle, and a fabric cover (made of materials such as natural or synthetic sheepskin, terry cloth, or chamois, depending on the activity) entirely enclosing the said sponge element and the connecting plate. The fabric cover element includes an insertion aperture and a closure element, such as Velcro.RTM., for joining the periphery of the aperture and completely enclosing the sponge element and the connecting plate with non-metallic components.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: January 12, 1993
    Inventor: David L. Wirth