Patents by Inventor Stephen Scharf

Stephen Scharf 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: 4691403
    Abstract: A combination base board/corner and floor brush holder is provided for simultaneously cleaning or polishing the base boards and floor. The device consists of a circular pad for removable attachment to bottom of the holder for use on a floor and a plurality of brushes for removable attachment around perimeter of the holder for use on a base board of a wall. A flexible cover is removably attached over the holder to keep the brushes in proper position when the holder rotates when used. A longer softer brush may be installed so that bristle will reach to a corner apex between wall at right angles to each other.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: September 8, 1987
    Inventor: Stephen Scharf
  • Patent number: 4407040
    Abstract: A pad drive assembly that detachably grips and rotatably drives a selected maintenance pad by a floor maintenance machine, comprises a rigid, substantially circular back support that has two faces, one of which is substantially planar. A substantially rigid pad drive or grip plate of planar, circular configuration is defined by two faces. One of the last mentioned faces is bonded to the planar face of the back support for rotation therewith. The other face of the pad drive is formed with a plurality of substantially rigid, upstanding pins that extend therefrom and that are adapted detachably to grip the selected maintenance pad and rotatively drive the same.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: October 4, 1983
    Assignee: Universal Brush Company Ltd.
    Inventor: Stephen Scharf