Patents by Inventor William M. Copeland

William M. Copeland 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: 4198721
    Abstract: An improvement of a combination motor and auxiliary cleaning mechanism actuator is included in a manually operated, rotary cleaning machine. The actuator includes an elongated actuator member mounted on the handle of the machine for movement among at least three actuator positions. The actuator member extends alongside the handle grip portion of the machine handle between two handle grips. Springs bias the actuator member to the first actuator position. Movement of the actuator member to the second actuator position places a first switch in an energizing state for energizing the motor of the machine, and movement of the actuator member to the third actuator position places a second switch in an energizing state for energizing an auxiliary cleaning mechanism of the machine.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: April 22, 1980
    Assignee: Servicemaster Industries, Inc.
    Inventor: William M. Copeland
  • 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