Glass manufacturing – Processes – Fusion bonding of glass to a formed part
Patent
1987-10-29
1988-08-30
Lindsay, Robert L.
Glass manufacturing
Processes
Fusion bonding of glass to a formed part
65 5928, 65139, 65155, 455 33, C03B 2307, C03B 23217, C03C 2702
Patent
active
047674369
ABSTRACT:
A stem mold includes an improved first (upper) mold assembly and a conventional second (lower) mold assembly. The first mold assembly includes a conventional mold head and a plurality of lead-weights which are attached to one end of the mold head. The first mold assembly is improved by the inclusion of a novel first mold block which has a plurality of fillet recesses therein which communicate through guide openings with a plurality of buffer-pin-wells extending into a cavity in a second surface of the mold block. A novel lead-weight translator is disposed within the cavity in the mold block. The translator has a translator recess formed in one surface and a plurality of lead-weight apertures extending from the recess through the other surface of the translator. A pin holder is disposed within the translator recess. A plurality of pin apertures are formed through the pin holder and aligned with the buffer-pin-wells in the mold block and also with the lead-weight apertures in the translator. A plurality of buffer pins are disposed in the pin apertures and extend into the pin wells. The buffer pins are configured to extend between the lead-weights and the internal portions of the lead-in conductors to retain the external portion of the lead-in conductors within the second mold assembly during the stem manufacturing operation. The buffer pins accommodate lead-in conductors of various internal lengths.
REFERENCES:
patent: 2030185 (1936-02-01), Rose
patent: 2107254 (1938-02-01), Horn
patent: 2338507 (1944-01-01), Haas et al.
patent: 2340879 (1944-02-01), Horn
patent: 3188720 (1965-06-01), Husni
patent: 4165227 (1979-08-01), Nubani et al.
patent: 4723979 (1988-02-01), Fitzke et al.
Coughlin Jr. Vincent J.
Irlbeck Dennis H.
Lindsay Robert L.
RCA Licensing Corporation
Whitacre Eugene M.
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