Patents by Inventor James L. Crickard

James L. Crickard 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).

  • Apparatus and method for pressure testing of tubular bodies
    Patent number: 4192177
    Abstract: Method and apparatus for fluid pressure testing of tubes or pipes is provided wherein the tube or pipe under test is sealed at the ends by a resilient O-ring between the inside diameter of the tube or pipe and convex, preferably conical faces at each end of the tube or pipe, with the conical faces being held firmly in place against the outward thrust of the test fluid pressure by hydraulic action utilizing the pressurized testing fluid.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: March 11, 1980
    Assignee: Huntington Alloys, Inc.
    Inventors: James L. Crickard, Harold L. Sheets