Forming a gob of molten glass into a parison

Details Forming a gob of molten glass into a parison Forming a gob of molten glass into a parison

1986-08-22

1987-05-05

Kellogg, Arthur

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

65 76, 65 83, 65160, 65163, C03B 1116

Patent

active

046629238

ABSTRACT:
A plunger mechanism for use in forming a gob of molten glass into a parison comprises a cylinder (30), a piston (32) movable in the cylinder upon the introduction of hydraulic fluid, a piston rod (34), means (40) for mounting a plunger on the piston rod, a servo-mechanism (58) to control the flow of fluid, a position or velocity feedback device (60), and control means (70) responsive to the feedback device operable to control the servo-mechanism so that the plunger moves with a predetermined position against time curve.

REFERENCES:
patent: 3180718 (1965-04-01), Wilhelm
patent: 3192027 (1965-06-01), Wilhelm
patent: 3607194 (1971-09-01), Ayers
patent: 4613352 (1986-09-01), Krumme et al.

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