Plunger assembly

Details Plunger assembly Plunger assembly

1997-04-23

1998-09-01

Griffin, Steven P.

Glass manufacturing

With signal, indicator, inspection means, register, or recorder

65160, 65362, 65229, 65318, 65DIG13, C03B 9193, C03B 941

Patent

active

058005900

ABSTRACT:
Controlled movement of the pneumatically operated plunger in the narrow neck press and blow process of manufacture of glass containers is achieved by use of a pressure regulating valve in the air supply to the plunger which determines the pressure supplied according to the magnitude of a control signal which is determined by set point means operating in response to timing pulses from a timing control of the machine.

REFERENCES:
patent: 3834617 (1974-09-01), Dyntar
patent: 4499920 (1985-02-01), Steffan et al.
patent: 4662923 (1987-05-01), Vajda et al.
patent: 4723976 (1988-02-01), Shanaberger
patent: 4786306 (1988-11-01), Pinkerton
patent: 4867778 (1989-09-01), Pinkerton
patent: 5024417 (1991-06-01), Voxbrunner
patent: 5236485 (1993-08-01), Leweringhaus et al.

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