Patents by Inventor Paul DONNELY

Paul DONNELY 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).

  • SEAL FOR A PISTON ROD
    Publication number: 20110239859
    Abstract: A piston arrangement includes, but is not limited to a hydraulically-actuated piston to move a piston rod within a cylinder to pivot a clutch actuating lever, the end of the cylinder being sealed by a boot-type seal having a central hole, though which the rod slides in a reciprocating manner. The seal is flexible to permit transverse movements of the piston rod and has a peripheral flange by means of which it is attached to the cylinder end.
    Type: Application
    Filed: March 8, 2011
    Publication date: October 6, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eckhard KIRCHNER, Paul DONNELY, Simon FITZGERALD, Lou VILLANUEVA