Method of manufacture of glass flasks with stem and...

Details Method of manufacture of glass flasks with stem and... Method of manufacture of glass flasks with stem and...

2011-06-14

2011-06-14

Daniels, Matthew J (Department: 1741)

Glass manufacturing

Processes

Forming product or preform from molten glass

C065S071000, C065S266000, C065S082000

Reexamination Certificate

active

07958747

ABSTRACT:
The cake (7), fitted with the rough pressing (71) of the stem parison (61) is situated on the ring (8) where by the action of its own gravity, it streams off till the rough pressing (71) fits into the cavity (41) of the bottom mould (4). There the rough pressing (71) is fastened by the underpressure and the air is blasted into the flask (6) and, in the same time, the bottom mould (4) is forced downwards. When the orifice (42) of the cavity (41) comes on the level of the surface (51) of the bottom opening of the glass-blowing mould (5), the glass-blowing mould (5) is closed and the air is blasted into the flask (6) until it obtains the shape of the inner wall (52) of the glass-blowing mould (5).

REFERENCES:
patent: 6497119 (2002-12-01), Hartel et al.
patent: 23 51 808 (1975-05-01), None
patent: 2351808 (1975-05-01), None
patent: 103 48 241 (2004-05-01), None
patent: 2 049 329 (1971-03-01), None
patent: 2 450 786 (1980-10-01), None
patent: 2450786 (1980-11-01), None
patent: 1 528 849 (1978-10-01), None
patent: 55-121918 (1980-09-01), None
DE 2351808 (Machine Translation) [online], [retrieved on Jun. 10, 2010], retrieved from EPO Database (http://ep.espacenet.com/advancedSearch?locale=en—EP).
FR 2450786 (Machine Translation) [online], [retrieved on Jun. 10, 2010], retrieved from EPO Database (http://ep.espacenet.com/advancedSearch?locale=en—EP).
PCT International Search Report and Written Opinion mailed Nov. 10, 2005.

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