Patents by Inventor Henry C. Harbin

Henry C. Harbin 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).

  • Filter retention system for vacuum cleaners
    Patent number: 4670937
    Abstract: An arrangement in a vacuum cleaner preventing dirt collecting bag spill during a vacuuming operation by the combination of a bag retaining interlock with a cleaner handle shiftable between extreme positions each suitable for a different cleaner operating mode, with interlock release provided only in an intermediate, unuseable handle position.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: June 9, 1987
    Assignee: The Singer Company
    Inventors: William R. Sumerau, Henry C. Harbin
  • Surface cleaning vacuum nozzle
    Patent number: 4334336
    Abstract: A surface cleaning vacuum nozzle having a cleaning materials dispenser slidingly attached thereto, the entire assembly being connectable to a hand held suction wand having a valve attached thereto which is in fluid communication with a cleaning fluid supply. The sliding action of the dispenser aids in the connecting or disconnecting of the nozzle.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: June 15, 1982
    Assignee: The Singer Company
    Inventors: Martin E. Harbeck, Henry C. Harbin