Patents by Inventor Robert Edward Johnson

Robert Edward Johnson 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: 3942219
    Abstract: A vacuum cleaner having edge cleaning features comprising a cleaner body with a floor contacting suction chamber and a suction duct leading from the chamber, an edge auxiliary cleaning chamber at one end of the suction chamber and communicating through a port with the suction duct, a valve within the cleaner body movable between open and duct restricting positions for selective full nozzle cleaning and edge cleaning with suction through the auxiliary cleaning chamber when the valve is open and operating means accessible from the exterior of the cleaner for the moving of the valve between said positions.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: March 9, 1976
    Assignee: Whirlpool Corporation
    Inventor: Robert Edward Johnson
  • Patent number: 3936903
    Abstract: A vacuum cleaner suction tool including a nozzle provided with improved structure for selectively applying high suction to an edge portion of the nozzle such as for improved cleaning of corner and edge areas. The suction control includes a valve adjacent the suction outlet of the nozzle and an operator for selectively positioning the valve to provide selective control of the suction action in the nozzle.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: February 10, 1976
    Assignee: Whirlpool Corporation
    Inventor: Robert Edward Johnson