Patents by Inventor Dennis J. Sullivan, Sr.

Dennis J. Sullivan, Sr. 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).

  • Pin valve with removable valve body cover
    Patent number: 6409150
    Abstract: The invention is a pin valve having a detachable valve body cover which makes the valve stem assembly accessible from the end of the valve in which the valve stem protrudes. The removable valve body cover can be replaced independently if this end of the valve is damaged. The valve body cover also has a valve seat which is more accessible and is more easily machined. The valve body cover is typically adapted to accommodate an allen wrench type tool to simplify removal and reattachment. The invention eliminates the need to disconnect the valve at the second open end when replacing the valve stem assembly.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: June 25, 2002
    Inventors: Dennis J. Sullivan, Sr., Dennis J. Sullivan, Jr.