Patents by Inventor David K. Thatcher

David K. Thatcher 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).

  • Publication number: 20120137464
    Abstract: A powered mopping and cleaning machine is described. The machine includes a recovery tank, a filter assembly, a fresh water tank assembly, a vacuum assembly, a battery charger assembly, a control assembly, and a deck assembly. The machine is adapted to clean floors and more especially flat hard floors by means of providing a cleaning fluid to a rotating brush and by vacuuming resultant dirty fluid from the floor. The powered mopping and cleaning machine is adapted to replace the use of a conventional mop and mop bucket. Use of the powered mopping and cleaning machine is designed to result in decreased labor, increased efficiency, and decreased cleaning cost as compared to the use of a standard mop and mop bucket. The powered mopping and cleaning machine, although self-contained, will preferably fit into the same storage space that is otherwise allotted to store a conventional mop and mop bucket.
    Type: Application
    Filed: October 11, 2006
    Publication date: June 7, 2012
    Inventors: David K. Thatcher, Reed C. Stokes
  • Publication number: 20090064452
    Abstract: A powered carpeted floor scrubbing and combing machine is described. The machine includes first and second scrubbing pads, followed by a combing head having cylindrical shaped counter-rotating brushes, which is in turn followed by a carpet shoe having vacuum ability. This invention provides for simultaneous scrubbing and combing of carpeted floors. The machine is powered with an internal engine and has a user control panel for the control/driving of the machine.
    Type: Application
    Filed: January 27, 2006
    Publication date: March 12, 2009
    Inventors: David K. Thatcher, Colby M. Haas
  • Publication number: 20020174510
    Abstract: 18A powered floor scrubbing, buffing machine is described. This machine accommodates a first and second scrubbing pad, one or more scrubbing pads or brushes, which can be either disc or rotary brushes, followed by a squeegee having vacuum capability, which in turn is followed by a high-speed buffer pad. This invention provides for simultaneous scrubbing and buffing of floor surfaces. It is powered with an internal engine and has a user control panel for the control/driving of the machine.
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventors: David K. Thatcher, Colby M. Haas, Brian C. Clark
  • Patent number: D904705
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: December 8, 2020
    Inventor: David K. Thatcher
  • Patent number: D965927
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: October 4, 2022
    Inventor: David K. Thatcher
  • Patent number: D965928
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: October 4, 2022
    Inventor: David K. Thatcher