Patents by Inventor Ralph H. Donnelly

Ralph H. Donnelly 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).

  • Wallboard jack
    Patent number: 4712771
    Abstract: A jack for raising and holding articles such as wallboard, comprising a base [15] with a pivotally attached lever assembly [16] mounted on the base in a manner that downward pressure on one end will raise the other end. Releasable ratchet means [35] is connected for holding the lever in the raised position.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: December 15, 1987
    Inventors: Kevin S. Donnelly, Ralph H. Donnelly
  • Bracket for smoke and fume ejector fan
    Patent number: 4039129
    Abstract: Presented is a bracket assembly on which may be mounted a fan assembly for ejecting smoke or fumes from a building or enclosure.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: August 2, 1977
    Inventors: James E. Berkeland, Ralph H. Donnelly