Patents by Inventor Stanley L. Baldwin

Stanley L. Baldwin 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).

  • Conduit liner monitor
    Patent number: 5177468
    Abstract: The monitor allows for the non-destructive determination of the status of a liner disposed within a conduit. The conduit may, for example, be an elbow, valve, pipe. At least one wire is disposed within the liner in an area of concern. The wire is connected to a receptacle located on the conduit. A status display plugs into the receptacle and checks the continuity of the wire. If a wire is broken, this information is displayed, indicating a potential problem with the liner.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: January 5, 1993
    Assignee: Inco Limited
    Inventors: Stanley L. Baldwin, Payam Towfigh, Stuart E. Street
  • Butterfly valve for erosive fluid streams
    Patent number: 4944325
    Abstract: A butterfly valve having a central cavity larger than the access ports. A disc is disposed within the central cavity to sealingly engage the interior of the valve. A molded elastomeric liner covers the interior of the valve and the disc. By utilizing a central cavity of larger cross sectional area than the access ports, internal valve and downstream pipe turbulence is reduced resulting in increased component lifetimes.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: July 31, 1990
    Assignee: INCO Limited
    Inventors: Stanley L. Baldwin, Charles W. Berscheid
  • Mufflers for percussive pneumatic machines
    Patent number: 4294330
    Abstract: A muffler for use with machines such as pneumatic drills consists of an elastomeric housing divided into an admission chamber and a series of muffler chambers. Within the housing are an inlet conduit communicating with the admission chamber and each muffler chamber, an exhaust conduit communicating with each muffler chamber as well as with a tail pipe outside the housing, and a Helmholtz resonator communicating with the admission chamber.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: October 13, 1981
    Assignee: Inco Limited
    Inventors: Stanley L. Baldwin, Vernon Hampton, Tony F. W. Embleton
  • Cable rock anchor
    Patent number: 4160615
    Abstract: Directed to a cable rock anchor device whereby a load-supporting cable having considerable length may be anchored in a hole to provide ceiling or wall support underground comprising cable gripping means for gripping the cable during advance of the cable and device through a hole and expandable hole gripping means in contact therewith whereby tension applied to the cable causes the cable gripping means to grip the cable more tightly and causes expansion of the hole gripping means to grip the hole wall.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: July 10, 1979
    Assignee: The International Nickel Company, Inc.
    Inventor: Stanley L. Baldwin