Patents by Inventor Andrew Tilstra

Andrew Tilstra 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: 20060045623
    Abstract: A work machine for removing asphalt from a roadway is disclosed. The work machine includes a removal device configured to remove asphalt from a roadway surface, and a grinding device configured to fracture the removed asphalt. The work machine also includes a funnel-shaped ramp configured to guide the removed asphalt from the removal device to the grinding device. A width of the removal device is larger than a width of the grinding device, and the funnel-shaped ramp is configured to fold the outer edges of the removed asphalt over itself before the removed asphalt reaches the grinding device.
    Type: Application
    Filed: April 29, 2005
    Publication date: March 2, 2006
    Inventors: Dean Potts, Andrew Tilstra, Jeffrey Renard
  • Publication number: 20060045622
    Abstract: A work machine for removing asphalt from a roadway is disclosed. The work machine includes a plurality of blade members to remove asphalt from the roadway. The plurality of blade members are interconnected by way of hinges.
    Type: Application
    Filed: April 29, 2005
    Publication date: March 2, 2006
    Inventors: Dean Potts, Andrew Tilstra, Jeffrey Renard
  • Publication number: 20060045621
    Abstract: A work machine for removing asphalt from a roadway is disclosed. The work machine includes a removal device configured to remove asphalt from a roadway. The work machine also includes a storage bin operatively connected to the removal device and configured to house the removed asphalt.
    Type: Application
    Filed: April 29, 2005
    Publication date: March 2, 2006
    Inventors: Dean Potts, Andrew Tilstra, Jeffrey Renard