Method of making fluid treatment modules

Details Method of making fluid treatment modules Method of making fluid treatment modules

1976-08-24

1978-05-30

Moon, Charlie T.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

29423, 164132, 249 60, 249 62, B29C 102

Patent

active

040923959

ABSTRACT:
This invention relates to the making of negatives intended for the production of bodies which contain cavities of predetermined shapes.
The term "negative" signifies a disposable core member, for example as used in some molding techniques such as the lost wax process. The negative at least partly matches the cavities which latter form two independent systems of regularly distributed intersecting channels with the channels in any one same system intercommunicating via ducts which are themselves regularly distributed.
The method according to the invention consists in stacking plates which are made of an easily disposable substance and are perforated with regularly distributed holes which leave between them continuous bands of said substance the intersections of which form nodes and the width of which is less than the maximum dimension of the holes: this stacking operation is effected in such a way that holes correspond with holes and nodes with nodes, and the plates are spaced apart from one another by spacers which are also made of an easily disposable substance and whose maximum cross-sectional area is the same as that of said nodes and which are positioned over each of said nodes.
The invention also extends to the negatives whenever made by the method.

REFERENCES:
patent: 2315394 (1943-03-01), Brasius
patent: 2840353 (1958-06-01), Muspratt
patent: 3031360 (1962-04-01), Currier
patent: 3048341 (1962-08-01), Freyholdt
patent: 3238278 (1966-03-01), Stark
patent: 3426425 (1969-02-01), Brown et al.
patent: 3608046 (1971-09-01), Phillips
patent: 3861618 (1975-01-01), Jonsson

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