Patent ID: 6990810

Claim:
A method of hermetically sealing a pressure vessel of a Stirling engine, the pressure vessel having a high temperature section, the high temperature section having a first end and an open second end, and a low temperature section having an open threaded first end, the method comprising the steps of: a) providing a sealing flange, the sealing flange having a first end and a second threaded end; b) bonding the first end of the sealing flange to the open second end of the high temperature section; c) coating an outer surface of the open threaded first end of the low temperature section uniformly with solder; d) coating an Inner surface of the second threaded end of the sealing flange uniformly with solder; and e) heating the second threaded end of the sealing flange until the solder coatings are uniformly melted and co-mingled, wherein upon cooling the solder layers re-solidify so as to form a leak-proof hermetic seal.