Filter for liquids

Details Filter for liquids Filter for liquids

1977-03-11

1978-06-27

Cuchlinski, Jr., William A.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With coupling between charger and mold

210446, B01D 3502

Patent

active

040972160

ABSTRACT:
An injection nozzle for an injection moulding machine is described. The nozzle includes a body having a filter chamber and a filter element removably received in the chamber in the filter body. The outer surface of the filter element is defined by a plurality of slots which extend generally longitudinally of the element in circumferentially spaced positions, and a corresponding plurality of intervening lands. Each slot has a blind inner end and an outer end which opens into an end of the filter element, the slots being arranged so that alternate slots communicate by way of their outer ends with the filter chamber inlet opening and define with the inner surface of the filter chamber, inlet flow channels for liquid to be filtered, while the intervening slots communicate with the filter chamber outlet opening and similarly define outlet flow channels for said liquid. The lands between the slots define filtering gaps which provide liquid communication between adjacent flow channels and are dimensioned to prevent particles above a predetermined size passing through the filter element.

REFERENCES:
patent: 1335899 (1920-04-01), Kahlenberg
patent: 1456438 (1923-05-01), Hesselman
patent: 3825123 (1974-07-01), Neuman

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