Patents by Inventor James E. Halverson

James E. Halverson 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: 4732395
    Abstract: A free standing sport net stand (10) is disclosed and has a foot member (12) on which a riser (15) and extension member (20) are cooperatively connected in a generally upward direction. A leg (16) and weight assembly (17) are cooperatively connected to the foot member (12) in an outward direction and generally perpendicular to the riser (15) and extension member (20). The foot member (12) may be used in a first position for inside use and a second position for outside use. Chains (25 and 28) may be utilized to further support the riser (15) and extension member (20) to the weight assembly (17).
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: March 22, 1988
    Inventor: James E. Halverson
  • Patent number: 4486953
    Abstract: A chain saw guide bar assembly (30) having improved automatic chain tensioning, vibration damping and lubrication properties, and related lubrication methods are disclosed. A nose guide member (34) rotatably carrying an idler sprocket (34.1) is mounted to an elongate primary guide bar member (32) for reciprocal longitudinal movement relative thereto. Biasing spring members (50, 51), acting on force-imparting surfaces (60.4, 60.5), are protectively enclosed within an internal cavity (33) of the primary guide member and bias the nose guide member with predetermined tensioning force in the longitudinal direction against an endless cutting chain (40). An interchangeable force block member (60) enables preselection of the desired chain tension force. Damping finger members (32.35, 32.36, 50, 51) cooperatively absorb vibratory forces transmitted through the guide bar. Oil passageways (32.33, 32.
    Type: Grant
    Filed: June 29, 1982
    Date of Patent: December 11, 1984
    Inventor: James E. Halverson
  • Patent number: 4361960
    Abstract: A chain saw guide bar assembly (30) having improved automatic chain tensioning, vibration damping and lubrication properties, and related lubrication methods are provided. A nose guide member (34) rotatably carrying an idler sprocket (34.1) is mounted to an elongate primary guide bar member (32) for reciprocal longitudinal movement relative thereto. Biasing spring members (50, 51) acting on force-imparting surfaces (60.4, 60.5), are protectively enclosed within an internal cavity (33) of the primary guide member and bias the nose guide member with predetermined tensioning force in the longitudinal direction against an endless cutting chain (40). An interchangeable force block member (60) enables preselection of the desired chain tension force. Damping finger members (32.35, 32.36, 50, 51) cooperatively absorb vibratory forces transmitted through the guide bar. Oil passageways (32.33, 32.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: December 7, 1982
    Inventor: James E. Halverson