Patents by Inventor Earl E. Martens

Earl E. Martens 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: 6524173
    Abstract: An apparatus for cleaning a surface has a handle joined to a cleaning head operable to dispense liquid onto a surface to be cleaned, mechanically work up dirt, film and particulates from the surface into a vacuum unit. The cleaning head has a cylindrical core supporting a scrubber that rotates on a cylindrical member as the head moves relative to the surface to be cleaned. Nozzles located within the cleaning head discharge liquid into the core and scrubber. The scrubber has helical abrasive and porous ribbons that horizontally and laterally scrub and distribute the liquid onto the surface to be cleaned. A modification of the apparatus has nozzles located adjacent the scrubber that dispenses liquid to a surface. The scrubber when subjected to vacuum picks up the liquid and dirt from the surface.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: February 25, 2003
    Inventors: Marc O. Nelson, Earl E. Martens
  • Patent number: 6260232
    Abstract: An apparatus for cleaning a surface has a handle joined to a cleaning head operable to dispense liquid onto a surface to be cleaned, mechanically work up dirt, film and particulates from the surface into a vacuum unit. The cleaning head has a cylindrical core supporting a sleeve that rotates on a cylindrical member as the head moves relative to the surface to be cleaned. Nozzles located within the cleaning head discharge liquid into the core and sleeve. The sleeve distributes the liquid onto the surface to be cleaned. A modification of the apparatus has nozzles located adjacent the sleeve that dispenses liquid to a surface. The sleeve when subjected to vacuum picks up the liquid and dirt from the surface. A further modification has a cleaning head with an internal chamber closed with a removable base and pad. A nozzle located within the chamber discharges liquid to the pad. The liquid and dirt collected by the pad are drawn into the chamber by vacuum.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: July 17, 2001
    Inventors: Marc O. Nelson, Earl E. Martens
  • Patent number: D483534
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: December 9, 2003
    Inventors: Marc O. Nelson, Earl E. Martens