Glass manufacturing – Electronic envelope header – terminal – or stem making means – With means inserting wire into glass
Patent
1988-05-20
1989-03-21
Kellogg, Arthur
Glass manufacturing
Electronic envelope header, terminal, or stem making means
With means inserting wire into glass
65 5925, 65 5927, 65 5931, 65 597, 65138, 65155, C03B 2313
Patent
active
048139912
ABSTRACT:
An apparatus for manufacturing a glass stem for an electron tube has a plurality of lead-in conductors and a plurality of fillets with the lead-in conductors extending through the fillets. The apparatus comprises a first stem mold assembly and a second stem mold assembly for forming the stem therebetween. The first stem mold assembly comprises a universal stem mold having a plurality of longitudinal fillet-forming openings formed through a mold block. A plurality of inserts are replaceably disposed and retained within the openings in the mold block. Each of the inserts has a first end, an oppositely disposed second end, and a shank portion therebetween. Each of the inserts has a recess provided in the first end and a lead-accommodating opening extending from the recess into the shank portion of the insert. The mold block also accommodates one or more solid inserts in the openings to produce stems having dummy fillets, i.e., fillets without lead-in conductors therethrough.
REFERENCES:
patent: 2107254 (1938-02-01), Horn
patent: 2313025 (1943-03-01), Scharfnagel
patent: 2338507 (1944-01-01), Haas et al.
patent: 2340879 (1944-02-01), Horn
patent: 2781613 (1957-02-01), Watkins
patent: 3201216 (1965-08-01), Handmann
patent: 4612029 (1986-09-01), Kramer et al.
U.S. patent application, Ser. No. 114,356 filed on Oct. 29, 1987 by J. R. Hale titled, Apparatus and Method for Manufacturing a Molded Glass Stem, U.S. Pat. No. 4,767,436.
Coughlin Jr. Vincent J.
Irlbeck Dennis H.
Kellogg Arthur
Thomson Consumer Electronics Inc.
Whitacre Eugene M.
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