Method for casting a base directly on an electron tube

Details Method for casting a base directly on an electron tube Method for casting a base directly on an electron tube

1983-05-16

1985-03-12

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 467, 264 51, 26427215, 26427216, 2643281, 264DIG83, 425127, 425589, 425817R, B29D 2700, B29F 110

Patent

active

045044309

ABSTRACT:
Method for casting a base directly on an electron tube comprising a stem and stem leads sealed in and extending out from the stem includes: A. detachably coupling a mold to the leads and stem, B. producing a temporary pressure seal between the mold and the stem including applying static pressure in a direction that is substantially normal to the surface of the stem and C. injecting liquid castable material into the mold at substantial hydraulic pressure while maintaining the static pressure at the temporary seal.

REFERENCES:
patent: 2163177 (1939-06-01), Novotny
patent: 2424990 (1947-08-01), Krim
patent: 2433373 (1947-12-01), Krim
patent: 3417448 (1968-12-01), Kelley
patent: 4148541 (1979-04-01), Marks
patent: 4179540 (1979-12-01), Smarook
patent: 4345812 (1982-08-01), Wardell, Jr.

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