Patents by Inventor Rene J. Al

Rene J. Al 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).

  • Corrosion resistant valve construction
    Patent number: 3958595
    Abstract: A valve, such as a butterfly valve having an offset closure vane and a thru shaft for operating the vane in the flow passage of the body, has all exposed and/or potentially vulnerable metal surfaces encapsulated in a corrosion resistant polymeric plastic coating. By extending the coating uninterrupted from the flow passage through the shaft bore and sizing the bore coating to within controlled tolerances, overall corrosion protection of the valve is substantially enhanced while enabling the coating per se to function as a bearing surface for the operator shaft.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: May 25, 1976
    Assignee: Dresser Industries, Inc.
    Inventors: Rene J. Al, Ralph E. Henry