Metal working – Method of mechanical manufacture – Electrical device making
Patent
1982-11-29
1984-11-20
Rosenbaum, Mark
Metal working
Method of mechanical manufacture
Electrical device making
29507, 174152R, H01M 600
Patent
active
044830653
ABSTRACT:
Disclosed is a seal which provides effective hermetic sealing of insulated metallic feedthroughs in metallic containers. The device has particular applicability in the fabrication of pressurized metal/gas battery cells such as those used in spacecraft. A conductive terminus protrudes through a metallic vessel which may be pressurized. It is desired to maintain electrical separation between the terminus and the wall of the vessel by means of a dielectric, which is compressed between the terminus and a metallic boss to provide a hermetic seal. The compressive force is applied radially outwardly by means of drawing a nondeformable pin through a hollow cylindrical barrel constituting the terminus, thereby slightly deforming the barrel and grossly deforming the dielectric. The pin may be either pulled out of the barrel from within the vessel or pushed into the barrel from outside the vessel, but in each case force is applied radially outwardly in a gradual, relatively frictionless fashion. A method for constructing a high pressure battery employing such a seal is described.
REFERENCES:
patent: 3109055 (1963-10-01), Ziegler
patent: 3534988 (1970-10-01), Lindsey
patent: 4006282 (1977-02-01), Antoine
patent: 4309819 (1982-01-01), Goebel
Meyer Theodore O.
Ommering Gerrit Van
Echols P. W.
Ford Aerospace & Communications Corporation
Radlo Edward J.
Rosenbaum Mark
Sanborn Robert D.
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