Patents by Inventor Charles S. Elder

Charles S. Elder 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).

  • Shell with integral internal passage and method of making same
    Patent number: 5097899
    Abstract: A formed non-planar heat exchanger having two non-planar plates continuously joined across their contacting surfaces and complementarily curved to form an integral curved member; at least one channel is formed in at least one of the plates to define an integral internal heat exchange fluid flow passage within the curve contour of the curved member; the integral internal heat exchange fluid flow passage conforms with the curved member. A method of making such a device is also disclosed.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: March 24, 1992
    Assignee: The Charles Stark Draper Laboratories
    Inventors: Jacob H. Martin, Charles S. Elder
  • Method of making a shell with an integral passage
    Patent number: 5077894
    Abstract: A method of making a formed non-planar heat exchanger is disclosed in which two non-planar plates are continuously joined across their contacting surfaces and are complementarily curved to form an integral curved member where at least one of the contacting surfaces is provided with at least one channel to define an integral internal heat exchange fluid flow passage within and conforming to the curved contour of the curved member.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: January 7, 1992
    Assignee: The Charles Stark Draper Laboratory
    Inventors: Jacob H. Martin, Charles S. Elder
  • Method of obtaining effective faying surface contact in vacuum brazing
    Patent number: 5031823
    Abstract: A method of obtaining effective faying in joining parts includes forming a first and second member into predetermined complementing shapes. The members are then placed together and sealed along a peripheral track to form a chamber between the members. The method further includes applying a pressure differential to the members with the lesser pressure residing in the chamber and heating the members to soften at least one of the members to conform the members to each other under the force of the differential pressure.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: July 16, 1991
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventor: Charles S. Elder