Patents by Inventor Roland A. Blomgren

Roland A. Blomgren 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: 4429432
    Abstract: An improved apparatus for spraying a fluid or fluid and gas mixture behind and substantially in the path of a mobile floor cleaner. An attachment housing is attached to the mobile floor cleaner, and at least one spray nozzle is positioned in the housing to generate a fluid or fluid and gas spray. Fluid is supplied to the spray nozzle by a fluid reservoir that is attached to the housing and connected to the spray nozzle by means of a fluid line.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: February 7, 1984
    Assignee: ServiceMaster Industries, Inc.
    Inventors: William M. Copeland, Roland A. Blomgren, Robert L. Shallenberg
  • Patent number: 4400843
    Abstract: This invention provides a rotary floor cleaner having means for detachably securing the drive mechanism to the base of the unit, said means including wedge blocks against which the drive mechanism may be wedged and a rotatable cam for incrementally forcing the drive mechanism into wedging engagement between the wedge blocks and the cam.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: August 30, 1983
    Assignee: Service Master Industries, Inc.
    Inventor: Roland A. Blomgren
  • Patent number: 4270238
    Abstract: The improved cleaning tool disclosed herein is particularly designed for cleaning walls and ceilings. The tool includes a novel block assembly that is mounted on an end of a wand adapted to be held and manipulated by the person doing the cleaning and that includes one surface adapted to be disposed adjacent to the wall or ceiling to be cleaned during the cleaning operation. Two continous rows of channel bristles are mounted on the one surface of the block assembly and extend across the one surface, in a direction transverse to the normal, back and forth path of motion of the block assembly while in usage. The block assembly includes a plurality of nozzles that are designed to wet the rows of channel bristles with cleaning fluid so that the cleaning fluid will flow to the distal ends of the bristles and then be applied, as a thin film, to the wall or ceiling to be cleaned. Vacuum suction slots are disposed between the rows of channel bristles.
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: June 2, 1981
    Assignee: Service Master Industries, Inc.
    Inventors: Robert L. Shallenberg, Roland A. Blomgren
  • Patent number: 4174977
    Abstract: Apparatus and a method for rinsing and sanitizing a mop utilized to clean floors. Utilized with a conventional mop, mop wringer and mop bucket, the apparatus dispenses a pre-selected volume of cleaning solution onto the mop. The mop is then wrung dry and used, and the method of rinsing and sanitizing is repeated.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: November 20, 1979
    Assignee: ServiceMaster Industries, Inc.
    Inventors: Robert L. Shallenberg, Austen B. Hufton, Roland A. Blomgren, William M. Copeland
  • Patent number: 4102462
    Abstract: A device for supporting and stabilizing a cylindrical, open-topped container as the container is tipped to discharge its contents into a receptacle. The device includes a pivot member connected by spaced arms to a brace member, legs extending downward from the arms, and an elastic fastening member. The legs hook about a lip on the container, and in cooperation with the fastening member, which loops about a projection on the container, hold the brace member against a side of the container. The pivot member may then rest on the edge of the receptacle to provide a stable pivotal axis for tipping the container.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: July 25, 1978
    Assignee: Service Master Industries, Inc.
    Inventors: Rex E. Beach, Roland A. Blomgren