Patents by Inventor Dick Mason

Dick Mason 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).

  • Vacuum cleaner brush wrap geometry
    Patent number: 6085383
    Abstract: A vacuum cleaner comprising a housing having an elongated transverse brush cavity with an elongated cylindrical brush therein, a duct having an air flow nozzle adjacent the brush cavity for receiving dirt-entrained air from the brush cavity, a vacuum motor operably associated with the duct and nozzle to draw dirt-entrained air through the nozzle and duct, and the brush cavity having a wrap configuration geometry over the brush including an elongated reflective ledge angled laterally upwardly toward the nozzle.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: July 11, 2000
    Assignee: Castex Incorporated
    Inventors: Richard F. Wulff, Nilabh Narayan, Daniel G. Giddings, Dick Mason