Viscous material dispensing apparatus

Details Viscous material dispensing apparatus Viscous material dispensing apparatus

1997-07-30

1998-11-24

Yeung, George

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Plural orifices

222 63, 222263, 222330, 4253824, 425463, 426448, 426516, A23P 100, B29C 4700, B67D 500

Patent

active

058403469

ABSTRACT:
Apparatus for positive displacement metering of viscous material. Positive displacement and non-positive pumping of material to be metered is provided. The positive displacement pumping includes pressure release apparatus to avoid excessive pressure build-up. One pressure release apparatus includes an expansion chamber to moderate pressure changes.

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patent: 3649147 (1972-03-01), Fritsch
patent: 4171193 (1979-10-01), Rahlfs
patent: 4336213 (1982-06-01), Fox
patent: 4900572 (1990-02-01), Repholz et al.
patent: 4925380 (1990-05-01), Meisner
patent: 4925689 (1990-05-01), Getman
patent: 5019404 (1991-05-01), Meisner

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