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

C - Chemistry, Metallurgy

03

B

49/75.2

C03B 9/40 (2006.01) C03B 7/14 (2006.01) C03B 9/193 (2006.01) C03B 9/41 (2006.01) C03B 11/16 (2006.01)

Patent

CA 1266979

18. ABSTRACT FORMING A GOB OF MOLTEN GLASS INTO A PARISON 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.

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