Patents by Inventor John W. Walch

John W. Walch 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: 5551122
    Abstract: A handheld vacuum cleaner is provided that has a motor mounted with the rotational axis of its shaft parallel to the rotational axis of the rotating brush. The vacuum cleaner motor has an end bell, which is attached to the motor stator, and which holds a motor shaft bearing. The end bell is secured to the vacuum housing with an elastomeric mounting ring to dampen motor vibrations. The need for most motor mounting hardware is eliminated, because the housing supports the motor stator directly. The intake orifice of the vacuum is shaped to lie in two distinct planes, so that flat cleaning surfaces do not obstruct the orifice. The shape of the intake also allows one to clean immediately adjacent to a vertical wall.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: September 3, 1996
    Assignee: Electrolux Corporation
    Inventors: Robert W. Burkhardt, John W. Walch, Ricky A. Owens, Dennis J. Mancl
  • Patent number: 5448794
    Abstract: A handheld vacuum cleaner is provided that has a motor mounted with the rotational axis of its shaft parallel to the rotational axis of the rotating brush. The vacuum cleaner motor has an end bell, which is attached to the motor stator, and which holds a motor shaft bearing. The end bell is secured to the vacuum housing with an elastomeric mounting ring to dampen motor vibrations. The need for most motor mounting hardware is eliminated, because the housing supports the motor stator directly. The intake orifice of the vacuum is shaped to lie in two distinct planes, so that flat cleaning surfaces do not obstruct the orifice. The shape of the intake also allows one to clean immediately adjacent to a vertical wall.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: September 12, 1995
    Assignee: Electrolux Corporation
    Inventors: John W. Walch, Dennis J. Mancl
  • Patent number: 5311638
    Abstract: An improved cleaning system of the type which applies a cleaning fluid to a surface to be cleaned and then vacuums the dirty cleaning fluid from said surface is provided. The system includes a cleaning fluid pump for delivering pressurized cleaning fluid to spray nozzles attached to either a floor nozzle or a hand tool. Both the floor nozzle and the hand tool are connected to the suction and cleaning fluid connectors of the main cleaner unit by a one-step connection which connects both fluid and suction lines in a single motion. The hand tool, which is attached to the main unit by a hose assembly, has its own pinch valve for controlling the application of cleaning fluid to the surface to be cleaned. When the hand tool is being used the trigger which actuates the pump may be locked in the "on" position.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: May 17, 1994
    Assignee: The Regina Company
    Inventors: Kent J. Furcron, John W. Walch
  • Patent number: 4200978
    Abstract: A grass trimmer includes a housing having a lower base wall from which extends a hub member of a predetermined height coupled to a motor encased in the housing, which motor drives the hub member rotatably. A cutting line element is attached to the hub member. A rim extends outwardly from the housing about the perimeter of the base wall. A first rim portion is of a height greater than the hub member and includes first and second spaced mounting ears extending therefrom toward the hub member. A protective shield designed for mounting on the housing in spaced relation from the base wall, is planar and of a similar shape to the base wall. The shield includes first and second tab and shoulder assemblies located for cooperation with the ears on the rim portion of the housing. Joining the last mentioned assemblies and respective ears attaches the shield to the trimmer housing.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: May 6, 1980
    Assignee: McGraw-Edison Company
    Inventors: Edward A. Irelan, Robert L. Bartlett, John W. Walch
  • Patent number: D345830
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: April 5, 1994
    Assignee: TRC Acquisition Corporation
    Inventors: Kent J. Furcron, Gary A. Miller, Ricky A. Owens, John W. Walch, Mark D. Dziersk
  • Patent number: D346247
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: April 19, 1994
    Assignee: TRC Acquisition Corporation
    Inventors: Kent J. Furcron, Gary A. Miller, Ricky A. Owens, John W. Walch, Mark D. Dziersk
  • Patent number: D346467
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: April 26, 1994
    Assignee: TRC Acquisition Corporation
    Inventors: Kent J. Furcron, Gary A. Miller, Ricky A. Owens, John W. Walch, Mark D. Dziersk