Patents by Inventor Anthony J. Sergan

Anthony J. Sergan 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).

  • Method of applying torque to a workpiece
    Patent number: 5373759
    Abstract: The invention presented relates to an apparatus for applying rotational force to a workpiece.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: December 20, 1994
    Assignee: Anthony J. Sergan
    Inventor: Anthony J. Sergan
  • Bimodal hydraulic reciprocating torque actuator
    Patent number: 5329833
    Abstract: The invention presented relates to an apparatus for applying rotational force to a workpiece.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: July 19, 1994
    Inventor: Anthony J. Sergan
  • Torque wrench
    Patent number: 5203239
    Abstract: A torque wrench in which the torquing forces are applied to the article torqued equally and oppositely in a diametrically opposed manner. The body of the wrench comprises a two-part metal frame which permits the wrench to be significantly lighter than prior art wrenches. The applied forces may be provided by at least four hydraulic cylinders mounted in a frame, equally spaced about a central opening in which the article to be torqued is gripped. The fluid power cylinders apply force to the legs of a rotatable drive means which, in turn, rotates the member torqued. In order to provide rotation in both directions, each cylinder of the wrench is pivotable to permit the drive means to be selectively rotated in opposite directions.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: April 20, 1993
    Assignee: Barnes Group Inc.
    Inventors: Anthony J. Sergan, George L. Castle
  • Torque wrench
    Patent number: 5056384
    Abstract: A torque wrench in which the torquing forces are applied to the article torqued equally and oppositely in a diametrically opposed manner. The body of the wrench comprises a two-part metal frame which permits the wrench to be significantly lighter than prior art wrenches. The applied forces are provided by four hydraulic cylinders mounted in a frame, equally spaced about a central opening in which the member to be torqued is gripped. The fluid power cylinders apply force to the legs of a rotatable drive means which, in turn, rotates the member torqued. In order to provide rotation in both directions, each cylinder of the wrench is pivotable to engage two adjacent legs of the drive means and thereby permit the drive means to selectively rotate in opposite directions. The hydraulic wrench according to the invention is provided with a self-contained hydraulic system in order to create a completely portable unit which is generally free from hydraulic contamination.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: October 15, 1991
    Assignee: Barnes Group Inc.
    Inventor: Anthony J. Sergan