Patents by Inventor Boele De Vries

Boele De Vries 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).

  • Tree harvester head with lubrication system for multiple saws
    Patent number: 9119354
    Abstract: A tree harvester head includes first and second saws, each of which comprises a cutting chain, and a lubrication system configured to lubricate the cutting chains of the first and second saws. The lubrication system comprises a source of pressurized lubricant and a diverter valve configured to divert flow of pressurized lubricant, from the source of pressurized lubricant, between the first and second saws for lubrication of the respective cutting chains.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: September 1, 2015
    Assignee: DEERE & COMPANY
    Inventors: Alex J. Stevenson, Boele De Vries
  • TREE HARVESTER HEAD WITH LUBRICATION SYSTEM FOR MULTIPLE SAWS
    Publication number: 20100282367
    Abstract: A tree harvester head (12) comprises first and second saws (32, 38), each of which comprises a cutting chain (42), and a lubrication system (44) configured to lubricate the cutting chains (42) of the first and second saws (32, 38). The lubrication system (44) comprises a source of pressurized lubricant (46) and a diverter valve (48) configured to divert flow of pressurized lubricant, from the source of pressurized lubricant (46), between the first and second saws (32, 38) for lubrication of the respective cutting chains (42).
    Type: Application
    Filed: September 11, 2007
    Publication date: November 11, 2010
    Applicant: Waratah NZ Limited
    Inventors: Alex J. Stevenson, Boele De Vries