Patents by Inventor Christopher K. Pearce

Christopher K. Pearce 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: 6896742
    Abstract: A device and method of use for cleaning a ground surface with pressurized cleaning solution is disclosed. The device includes a transportable deck having at least a first chamber and a second chamber, each first and second chamber being in open communication with the surface, said first chamber having a nozzle for directing a pressurized cleaning solution toward the ground surface, and said second chamber having a vacuum outlet for removing cleaning solution and debris from the surface. Additional embodiments of the present invention may include a solution recycling system for reusing recovered solution.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: May 24, 2005
    Assignee: Tennant Company
    Inventors: Robert A. Geyer, Anthony John Hamline, Ian Taylor, Christopher K. Pearce
  • Publication number: 20020178529
    Abstract: A device and method of use for cleaning a ground surface with pressurized cleaning solution is disclosed. The device includes a transportable deck having at least a first chamber and a second chamber, each first and second chamber being in open communication with the surface, said first chamber having a nozzle for directing a pressurized cleaning solution toward the ground surface, and said second chamber having a vacuum outlet for removing cleaning solution and debris from the surface. Additional embodiments of the present invention may include a solution recycling system for reusing recovered solution.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 5, 2002
    Inventors: Robert A. Geyer, Anthony John Hamline, Ian Taylor, Christopher K. Pearce
  • Patent number: 5319828
    Abstract: A floor scrubbing machine for tile and other hard surface floors has a low enough profile height that it can be operated bodily under furniture or equipment such as, for example, seats in fast food stores. This floor scrubber has three principle functioning components, comprising a tank for cleaning solution and means to apply that solution to the floor, a powered scrub brush to agitate the solution on the floor, and a vacuum pickup squeegee system which dries the floor after scrubbing by removing spent solution from the floor to an on board tank. Floor scrubbers are known which comprise the three above elements, but are too tall to operate under the seats of fast food stores, except with a remote wand attachment which is cumbersome and slow. Other floor scrubbers are known which are low enough to operate bodily in such places but lack a vacuum pickup squeegee system for drying the floor, and leave a hard surface floor unacceptably wet, or require following operations to dry it.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: June 14, 1994
    Assignee: Tennant Company
    Inventors: Steven J. A. Waldhauser, Christopher K. Pearce, Ross Rumfola