Patents by Inventor Dirk M. Both

Dirk M. Both 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: 5327609
    Abstract: Mopsweeping apparatus is disclosed which has a housing adapted to move over a surface to be cleaned. A cooperating pair of rollers is carried by the housing and comprises a first roller having a dust gathering cloth wound thereon and a second roller on which the cloth is windable. A motor is provided to drive the rollers for winding the cloth from the first roller to the second roller, with the winding direction being in the same direction as the direction of movement over the surface. A pressing structure under which the cloth is retained is provided. The pressing structure comprising two rollers over which an endless flexible belt is carried to provide a horizontal contact surface with the surface to be cleaned.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: July 12, 1994
    Assignee: Reinhoud B.V.
    Inventors: Ulrk F. Bierma, Dirk M. Both