Patents by Inventor Melton E. Garrison

Melton E. Garrison 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).

  • Method for braze-joining spirally wound tapes to inner walls of heat exchanger tubes
    Patent number: 4466567
    Abstract: The present invention is directed to a method of fabricating heat exchanger tubes in which twisted tapes are utilized for promoting turbulence and heat transfer. The method of the present invention provides for the brazing of the tapes to the inner walls of the tubes for enhancing heat transfer between the fluid within the conduit and a fluid medium outside of the conduit by conduction through the tape. The braze joint of the present invention is coextensive with the tape over the entire length thereof within the conduit. The practice of the present invention is achieved by placing a filler wire of brazing metal along the tape at a location removed from the side walls and then heating the conduit and tape sufficiently to effect the displacement of the filler metal by wicking to the contact point between the tape and the conduit wall to form a braze joint coextensive with the length of the tape within the conduit.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: August 21, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Melton E. Garrison