Patents by Inventor Richard P. Burkhart

Richard P. Burkhart 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: 4654920
    Abstract: A scrubber attachment for being fixedly mounted to a wringer type sponge mop without the necessity for any extra, attaching hardware. The scrubber attachment carries a scrubber pad and is fixedly secured to the mop head at a predetermined angle. This combination yields a mop capable of both conventional sponge cleaning and of abrasively rubbing to effect further cleansing treatment of a surface without the risk of moving the scrubber out of operative position during use.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: April 7, 1987
    Assignee: The Drackett Company
    Inventors: William J. O'Neil, Jr., Richard P. Burkhart
  • Patent number: 4604767
    Abstract: A wringer sponge mop and scrubber attachment, the scrubber attachment carrying a detachable scrubber pad. The scrubber attachment may be fashioned of wire, sheet metal, a rigid plastics material or any desired combination of these materials. In the normal or use position of the sponge, the scrubber pad is positioned on one side of the sponge and rearwardly of the sponge working (floor or wall contacting) face. In the sponge wringing or squeezed position of the mop, the sponge is retracted and the scrubber pad rotates to move forwardly of the retracted sponge working face, now able to be applied to a floor or wall to be abrasively rubbed. This combination yields a mop capable of both cleaning, by brushing a liquid laden sponge over a surface, and of abrasively rubbing to effect further cleansing treatment of a surface.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: August 12, 1986
    Assignee: The Drackett Company
    Inventors: Richard P. Burkhart, Edward C. Gemperle