Patents by Inventor Donald J. Brockhage

Donald J. Brockhage 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: 7047853
    Abstract: A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second blade pivoted on the fulcrum shaft at one end of the blade, and between the attachment positions of the first blade and the first element such that relative rotation of the first and second elements causes relative rotation of the first and second blades producing a shearing action.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: May 23, 2006
    Inventor: Donald J. Brockhage
  • Publication number: 20040231165
    Abstract: A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second blade pivoted on the fulcrum shaft at one end of the blade, and between the attachment positions of the first blade and the first element such that relative rotation of the first and second elements causes relative rotation of the first and second blades producing a shearing action.
    Type: Application
    Filed: June 28, 2004
    Publication date: November 25, 2004
    Inventor: Donald J. Brockhage
  • Patent number: 6754961
    Abstract: A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second blade pivoted on the fulcrum shaft at one end of the blade, and between the attachment positions of the first blade and the first element such that relative rotation of the first and second elements causes relative rotation of the first and second blades producing a shearing action.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: June 29, 2004
    Inventor: Donald J. Brockhage
  • Publication number: 20040020059
    Abstract: A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second blade pivoted on the fulcrum shaft at one end of the blade, and between the attachment positions of the first blade and the first element such that relative rotation of the first and second elements causes relative rotation of the first and second blades producing a shearing action.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Inventor: Donald J. Brockhage
  • Patent number: 5971652
    Abstract: An articulated conduit joint (8) includes first and second arms (10, 12), defining first and second passages (106), pivotally coupled by a main clutched joint (14) for movement of the arms about a joint pin (78) defining a first axis (20). The main clutched joint includes a generally open central portion (70) located between first and second end portions (72, 74). Clutch plates (82, 84) in the first end portion are alternately keyed to the first end portion and the joint pin. A compression spring (100) within the second end portion biases the joint pin along the first axis and forces the clutch plates against one another. The first and second end portions are integral with the first and second arms so that relative pivotal movement of the arms about the first axis is frictionally resisted by the clutch plates sliding against one another. One or both of the arms may include a hollow arm extension (22) housed within an arm body (16) for movement about a second axis (24) passing along the passage within the arm.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: October 26, 1999
    Inventors: William H.C. Bartlett, Donald J. Brockhage
  • Patent number: 5890747
    Abstract: A double containment pipe fitting (10) has inner and outer pipes (12, 14). The inner pipe has a polygonal cross section to present a number of edges (12j) which extend parallel with the longitudinal axis (15) of the pipe and engage the inner surface (14c) of the outer pipe to present the double containment feature, namely the central portion of the inner pipe being one fluid flow path and the spaces (18) between the flat outer sides (12c) of the inner pipe and inner surface of the outer pipe forming the second fluid flow path. The outer surface of the inner pipe can be triangular, square, rectangular or otherwise polygonal.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: April 6, 1999
    Assignee: Brockhage Associates, A Trust
    Inventor: Donald J. Brockhage
  • Patent number: 5820287
    Abstract: An articulated conduit joint (8) includes first and second arms (10, 12), defining first and second passages (106), pivotally coupled by a main clutched joint (14) for movement of the arms about a joint pin (78) defining a first axis (20). The main clutched joint includes a generally open central portion (70) located between first and second end portions (72, 74). Clutch plates (82, 84) in the first end portion are alternately keyed to the first end portion and the joint pin. A compression spring (100) within the second end portion biases the joint pin along the first axis and forces the clutch plates against one another. The first and second end portions are integral with the first and second arms so that relative pivotal movement of the arms about the first axis is frictionally resisted by the clutch plates sliding against one another. One or both of the arms may include a hollow arm extension (22) housed within an arm body (16) for movement about a second axis (24) passing along the passage within the arm.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: October 13, 1998
    Inventors: William H. C. Bartlett, Donald J. Brockhage
  • Patent number: 5050626
    Abstract: The present invention is directed to an improved cleaner for a paint roller in which the cleaner includes a container with an opening for receiving a paint roller and a groove in the side wall thereof for releasably mounting the frame of the paint roller to the container, whereupon the roller is in a fixed location to be struck by water streams from a manifold within the interior of the body. The manifold is connected to a handle outside the container, and the handle is pivotally mounted so that the manifold can rotate through a limited arc to change the angle of impingement of the water streams from the manifold onto the paint roller to be cleaned. The handle of the container body has a serrated structure for releasably locking the handle to the body with a manifold in any one of a number of positions.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: September 24, 1991
    Inventors: John W. Brockage, Donald J. Brockhage