Patents by Inventor Rex D. Davidson

Rex D. Davidson 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 scraping machine with floating blade
    Patent number: 7093906
    Abstract: A machine for scraping a floor covering from a floor has rear drive wheels and a forward blade assembly. Arms which each rotate independently on the frame at one end are connected to the blade assembly which independently rotate on their other ends. Thus, the blade is able to float and follow the contour of the floor even if the wheels and blade are riding on an uneven surface. The pitch and elevation of the blade assembly can be changed individually or simultaneously without inhibiting the floating motion of the blade assembly.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: August 22, 2006
    Inventor: Rex D. Davidson
  • Floor scraping machine with floating blade
    Patent number: 6988776
    Abstract: A machine for scraping a floor covering from a floor has rear drive wheels and a forward blade assembly. Arms which each rotate independently on the frame at one end are connected to the blade assembly which independently rotate on their other ends. Thus, the blade is able to float and follow the contour of the floor even if the wheels and blade are riding on an uneven surface. The pitch and elevation of the blade assembly can be changed individually or simultaneously without inhibiting the floating motion of the blade assembly.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: January 24, 2006
    Inventor: Rex D. Davidson
  • Scraper bit
    Patent number: D619153
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 6, 2010
    Inventor: Rex D. Davidson