Patents by Inventor Hugh-Hiram Ruble, Jr.

Hugh-Hiram Ruble, Jr. 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).

  • Durable method for producing finned tubing
    Patent number: 5016460
    Abstract: The method of the invention produces a method for fabricating a metal tube that contains at least 30 wt % nickel and 10 wt % chromium. The invention utilized an elongated mandral having an oversized diameter and oversized land portions. The oversized land portions project radially outward from the mandrel and extend longitudinally along the mandrel. The valley portions are located between the land portions and extend longitudinally along the mandrel. Oversized diameter internally finned tubing is formed with the mandrel. The oversized diameter internally finned tubing is sent to a finished diameter. The sinking reduces radial spacing between the fins and elongates the oversized diameter internally finned tubing without substantially reducing the height of the fins.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: May 21, 1991
    Assignee: Inco Alloys International, Inc.
    Inventors: Jimmy C. England, John R. Hensley, Frederick E. Moehling, Everett M. Roberts, Hugh-Hiram Ruble, Jr.