Method and apparatus for manufacturing glass bottles

Details Method and apparatus for manufacturing glass bottles Method and apparatus for manufacturing glass bottles

1983-01-14

1983-10-25

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 68, 65 79, 65 81, 65 82, 65229, 65230, 65300, C36

Patent

active

044116810

ABSTRACT:
A method and apparatus for manufacturing glass bottles and more specifically an apparatus and a method for forming parisons is disclosed. At least one blank mold defines a mold cavity having an opening at its upper end for receiving a premeasured gob of molten glass from a loading cavity member. A plunger having a volume of at least 15% of the volume of the mold cavity is completely extended into the mold cavity prior to the reception of the molten glass. The molten glass is moved downwardly from said loading cavity member into the mold cavity. Fluid force presses the molten glass against the walls of the mold cavity and against the extended plunger. The opening in the mold is closed by a baffle and the plunger retracted. Compressed air is applied through the neck of the parison to expand the parison outwardly against the mold cavity and a mold surface defined by the baffle means. The parison is then separated for further processing in the bottle making operation.

REFERENCES:
patent: 3216813 (1965-11-01), Mumford
patent: 3271123 (1966-09-01), Benard
patent: 3622305 (1971-11-01), Becker
patent: 3644111 (1972-02-01), Becker
patent: 3765862 (1973-10-01), Rowe
patent: 3846103 (1974-11-01), Rowe
patent: 4336050 (1982-06-01), Northup

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