CHARLES S ELDER
Engineering in Bedford, MA
License number
Massachusetts 26277
Issued Date
Apr 28, 1972
Expiration Date
Jun 30, 1992
Type
Mechanical Engineer
Address
Address
Bedford, MA 01730
Professional information
Shell With Integral Internal Passage And Method Of Making Same
US Patent:
5097899, Mar 24, 1992
Filed:
May 30, 1989
Appl. No.:
7/357883
Inventors:
Jacob H. Martin - Wellesley MA
Charles S. Elder - Bedford MA
Charles S. Elder - Bedford MA
Assignee:
The Charles Stark Draper Laboratories - Cambridge MA
International Classification:
F28F 312
US Classification:
165169
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.
Method Of Making A Shell With An Integral Passage
US Patent:
5077894, Jan 7, 1992
Filed:
May 17, 1990
Appl. No.:
7/524503
Inventors:
Jacob H. Martin - Wellesley MA
Charles S. Elder - Bedford MA
Charles S. Elder - Bedford MA
Assignee:
The Charles Stark Draper Laboratory - Cambridge MA
International Classification:
B21D 5304
US Classification:
29890390
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.
Method Of Obtaining Effective Faying Surface Contact In Vacuum Brazing
US Patent:
5031823, Jul 16, 1991
Filed:
Dec 5, 1990
Appl. No.:
7/622374
Inventors:
Charles S. Elder - Bedford MA
Assignee:
The Charles Stark Draper Laboratory, Inc. - Cambridge MA
International Classification:
B23K 100, B23K 119, B23K 2014
US Classification:
2281733
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.