Patents by Inventor Gregory P. Nichols

Gregory P. Nichols 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).

  • Travel stop for diaphragm regulator valve
    Patent number: 4782850
    Abstract: A diaphragm type regulator valve includes a pusher post with outwardly extending stop ears coupled to the diaphragm. The linkage coupling the pusher post and valve disc includes a lever having a pair of legs that engage a pin in a bifurcated portion of the pusher post for transmitting forces between the diaphragm and the valve disc. A retainer is rigidly mounted to the valve casing and pivotally supports the lever. The retainer includes a pair of stops that straddle the pusher post and extend in the path of travel of the stop ears thereon for positively restraining travel of the pusher post beyond a predetermined point should an excess pressure condition exist. Restraining travel of the pusher post prevents excessive stress on the linkage. A one piece plastic pressure relieve indicator mechanism is also disclosed.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: November 8, 1988
    Assignee: Fisher Controls International, Inc.
    Inventors: John W. Duffy, Gregory P. Nichols