Patents by Inventor Ron Lehman

Ron Lehman 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).

  • Floor sweeping and scrubbing machine
    Patent number: 7448114
    Abstract: A hard floor sweeping and scrubbing machine includes a mobile body comprising a frame supported on wheels for travel over a surface, a motorized cleaning head, a waste hopper, a hopper lift and a vacuum squeegee. The motorized cleaning head is attached to the mobile body and is configured to perform sweeping and scrubbing operations on the surface. The waste hopper is positioned on a rear side of the cleaning head and is configured to receive waste discharged from the cleaning head during the surface sweeping operations. The hopper lift is configured to raise the waste hopper from an operating position, in which the waste hopper is positioned adjacent the cleaning head, to a dumping position, in which the waste hopper is positioned to dump waste collected in the waste hopper. In one embodiment, the vacuum squeegee is attached to the hopper lift. Also disclosed is a method of cleaning a surface using embodiments of the machine.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: November 11, 2008
    Assignee: Tennant Company
    Inventors: Michael T. Basham, Warren L. Larson, Barbara J. Peterson, legal representative, Richard W. Wellens, Mark J. Fleigle, Don Durenberger, Brent Hayden, Ron Lehman, Terence A. Peterson
  • Floor sweeping and scrubbing machine
    Publication number: 20060282975
    Abstract: A hard floor sweeping and scrubbing machine includes a mobile body comprising a frame supported on wheels for travel over a surface, a motorized cleaning head, a waste hopper, a hopper lift and a vacuum squeegee. The motorized cleaning head is attached to the mobile body and is configured to perform sweeping and scrubbing operations on the surface. The waste hopper is positioned on a rear side of the cleaning head and is configured to receive waste discharged from the cleaning head during the surface sweeping operations. The hopper lift is configured to raise the waste hopper from an operating position, in which the waste hopper is positioned adjacent the cleaning head, to a dumping position, in which the waste hopper is positioned to dump waste collected in the waste hopper. In one embodiment, the vacuum squeegee is attached to the hopper lift. Also disclosed is a method of cleaning a surface using embodiments of the machine.
    Type: Application
    Filed: May 4, 2006
    Publication date: December 21, 2006
    Applicant: Tennant Company
    Inventors: Michael Basham, Warren Larson, Richard Wellens, Mark Fleigle, Don Durenberger, Brent Hayden, Ron Lehman, Terence Peterson, Barbara Peterson