Patents by Inventor Fred S. Sindlinger

Fred S. Sindlinger 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: 6138322
    Abstract: A novel upright carpet cleaning extractor is disclosed which may be conveniently converted from the floor cleaning mode to the upholstery and/or stair cleaning mode. The overall configuration and operation of the extractor is similar to that of a typical upright vacuum cleaner and may be operated in the forward or reverse direction similar to a typical upright vacuum cleaner. When in the floor cleaning mode, cleaning solution is supplied to a solution distributor by gravity flow. However, when converted to the upholstery cleaning mode an auxiliary, air turbine driven cleaning solution pump is automatically energized for supplying pressurized cleaning solution to an upholstery or stair cleaning nozzle.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: October 31, 2000
    Assignee: The Hoover Company
    Inventors: Darwin S. Crouser, Gregg A. McAllise, Jeffery A. Morgan, Fred S. Sindlinger
  • Patent number: 5901406
    Abstract: The present invention teaches a combined air/liquid separator and recovery tank for use on a hot water carpet extractor. The combined tank and separator are particularly suited for an upright style of carpet extractor and features easy removal for emptying the recovery tank at a site remote from the extractor.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: May 11, 1999
    Assignee: The Hoover Company
    Inventors: David G. Mueller, Fred S. Sindlinger, Jeffery Morgan, David Bradshaw, Gregg McAllise
  • Patent number: 5761763
    Abstract: A novel upright, hot water carpet cleaning extractor is disclosed. The overall configuration and operation of the extractor is similar to that of a typical upright vacuum cleaner and may be similarly operated in both the forward and reverse direction. The herein taught extractor comprises a base frame including the floor suction nozzle, suction fan, cleaning solution distributor, and a removable combination air/liquid separator and recovery tank. A manipulative push-pull handle is pivotly attached to the base frame having a removable cleaning solution supply tank supported thereon. The herein taught upright extractor is easily stored, self contained, easy to operate and requiring minimal effort by the operator.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: June 9, 1998
    Assignee: The Hoover Company
    Inventors: Gregg A. McAllise, Jeffery A. Morgan, Sidney H. Bradd, Lynn A. Frederick, Darwin S. Crouser, Fred S. Sindlinger
  • Patent number: 5615448
    Abstract: A novel upright carpet cleaning extractor is disclosed which may be conveniently converted from the floor cleaning mode to the upholstery and/or stair cleaning mode. The overall configuration and operation of the extractor is similar to that of a typical upright vacuum cleaner and may be operated in the forward or reverse direction similar to a typical upright vacuum cleaner. When in the floor cleaning mode, cleaning solution is supplied to a solution distributor by gravity flow. However, when converted to the upholstery cleaning mode an auxiliary, air turbine driven cleaning solution pump is automatically energized for supplying pressurized cleaning solution to an upholstery or stair cleaning nozzle.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: April 1, 1997
    Assignee: The Hoover Company
    Inventors: Darwin S. Crouser, Gregg A. McAllise, Jeffery A. Morgan, Fred S. Sindlinger
  • Patent number: 5493752
    Abstract: A novel upright carpet cleaning extractor is disclosed which may be conveniently converted from the floor cleaning mode to the upholstery and/or stair cleaning mode. The overall configuration and operation of the extractor is similar to that of a typical upright vacuum cleaner and may be operated in the forward or reverse direction similar to a typical upright vacuum cleaner. When in the floor cleaning mode, cleaning solution is supplied to a solution distributor by gravity flow. However, when converted to the upholstery cleaning mode an auxiliary, air turbine driven cleaning solution pump is automatically energized for supplying pressurized cleaning solution to an upholstery or stair cleaning nozzle.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: February 27, 1996
    Assignee: The Hoover Company
    Inventors: Darwin S. Crouser, Gregg A. McAllise, Jeffery A. Morgan, Fred S. Sindlinger