Patents by Inventor Ronald J. Sirchio

Ronald J. Sirchio 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).

  • Patent number: 5549131
    Abstract: An automatic recirculation valve having a body portion, a central hub integral with said body portion and inlet, main outlet and recirculation outlets. A main valve element responsive to flow from said inlet to said main outlet includes a hollow stem forming a bypass valve member through which recirculation fluid flows. A shaft guide bushing surrounding the valve stem and bypass adapter in the bypass outlet provides a recirculation fluid passage and imparts a swirling movement to the recirculation fluid exiting the recirculation outlet to protect the valve body and downstream piping from damage.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: August 27, 1996
    Assignee: Keystone International Holdings Corp.
    Inventors: Horace J. Maxwell, Ronald J. Sirchio, James J. Henofer