Patents by Inventor Michael D. Dulberger

Michael D. Dulberger 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).

  • Viscous/friction damper
    Patent number: 4353604
    Abstract: A friction damper is mounted in series with a viscous damper to accommodate the normal magnitude vibration and the higher magnitude vibration occasioned from a larger imbalance of a jet engine rotor manifested by a bowed rotor and including a loading spring to allow the recentering of said friction damper when the higher magnitude vibrations subside.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: October 12, 1982
    Assignee: United Technologies Corporation
    Inventors: Michael D. Dulberger, David H. Hibner, Donald C. Moringiello
  • Universal hood and kit for laptop computer LCD screen
    Patent number: D514582
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: February 7, 2006
    Assignee: Dul Co. LLC
    Inventor: Michael D. Dulberger
  • Computer shade
    Patent number: D467931
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: December 31, 2002
    Inventor: Michael D. Dulberger