Ceramic-glass sealing means for encapsulation of electrical devices

Claim 1

A CONTAINER FOR AN ELECTRICAL ASSEMBLY COMPRISING A METAL CYLINDRICAL ENCLOSING SAID ASSEMBLY, SAID CYLINDER HAVING AN OPEN END, AT LEAST ONE METAL SLEEVE EXTENDING INTO SAID OPEN END, SAID SLEEVE CARRYING A CONDUCTOR CONNECTED TO SAID ASSEMBLY, AND MEANS FOR SEALING SAID OPEN END AROUND SAID SLEEVE, SAID MEANS COMPRISING AN INSIDE CIRCULAR GLASS PELLET HAVING A DIAMETER SLIGHTLY LESS THAN SAID CYLINDER AND A BOSS HAVING AN APERTURE FOR THE PASSAGE OF SAID SLEEVE, SAID GLASS BEING FUSED TO THE SLEEVE AND TO THE INSIDE OF THE CYLINDER WALL, AND AN OUTSIDE CIRCULAR PROTECTIVE CERAMIC PELLET HAVING AN APERTURE FOR THE PASSAGE OF SAID SLEEVE, A RECESS FOR TELESCOPICALLY CONTAINING SAID BOSS AND A DIAMETER LARGER THAN THE INTERIOR DIAMETER OF SAID CYLINDER, SAID CERAMIC BEING PERIPHERALLY SEATED EXTERIORLY OF SAID GLASS ON THE CIRCULAR END OF SAID CYLINDER AROUND SAID OPEN END, SAID CERAMIC BEING BONDED BY A GLASSY PHASE TO THE GLASS, THE INTERFACIAL REGIONS BETWEEN THE CERAMIC AND SAID CYLINDER AND THE CERAMIC AND SAID SLEEVE RESPECTIVELY HAVING RELATIVELY THIN FLOWS OF GLASS FROM THE GLASS PELLET, THE FLOW BETWEEN THE CYLINDER AND CERAMIC BEING FUSED ON ONE SIDE TO THE CYLINDER, THE FLOW BETWEEN THE SLEEVE AND THE CERAMIC BEING FUSED ON ONE SIDE OF THE SLEEVE, AND EACH FLOW BEING BONDED BY A GLASSY PHASE ON ITS OTHER SIDE TO THE CERAMIC, THE PELLETS BEING COMPARATIVELY THICK RELATIVE TO THE THIN FLOWS.