Liquid/flowable product filling apparatus with seal system

Details Liquid/flowable product filling apparatus with seal system Liquid/flowable product filling apparatus with seal system

1994-06-27

1995-03-28

Kashnikow, Andres

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

222501, 222509, 222542, 222309, 251277, 277110, 277198, 277103, B67D 546

Patent

active

054009278

ABSTRACT:
A sealing system for use in a liquid/flowable product filling apparatus which comprises a hopper for holding the product, one or more filling assemblies, each of which includes a nozzle, a cylinder, a valve for selectively passing product from the hopper to the cylinder and from the cylinder to the nozzle, a piston selectively moveable in the cylinder to draw product from the hopper through the valve into the cylinder or to push product from the cylinder into the valve and out of the nozzle, and a plunger selectively moveable in the valve to prevent the flow of product from the hopper into the valve or prevent the flow of product from the valve and out of the nozzle. The sealing system includes an annular piston seal circumscribing the piston to press against the cylinder walls to provide a seal therebetween. The valve includes an annular wall section through which the plunger moves, and an annular recess formed in the wall section. An annular valve seal is disposed in the recess formed in the annular wall section to press against the plunger as it moves through the wall section, to provide a seal therebetween.

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patent: 3807909 (1974-04-01), St. Clair
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patent: 4501622 (1985-02-01), Marchadour
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patent: 5092492 (1992-03-01), Centea
patent: 5195656 (1993-03-01), Briehl et al.

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