Handling of solutions

Details Handling of solutions Handling of solutions

1996-04-16

1998-05-12

Rutledge, D.

Photography

Fluid-treating apparatus

Having fluid-circulating means

G03D 302

Patent

active

057521247

ABSTRACT:
Described herein is an arrangement which allows solution to be supplied to a process from a `bag-in-box` arrangement, used solution being returned to an emptied `bag-in-box` arrangement for disposal. The arrangement includes a process (40) having an inlet (46) and an outlet (48) which is connected to a valve arrangement (10) by way of the inlet (46) and outlet (48). Respective `bag-in-box` arrangements (62, 64) are connected to the valve arrangement (10) which determines whether the `bag-in-box` arrangement is connected to the inlet (46) or the outlet (48) by its position. The arrangement provides a system in which new `bag-in-box` arrangements containing fresh solution for the process (40) are connected to inlet (46) thereof regardless of their relative positioning. Using the valve arrangement (10), the number of connections and disconnections for the `bag-in-box` arrangements is halved.

REFERENCES:
patent: 3900866 (1975-08-01), Bell et al.
patent: 4197942 (1980-04-01), Gacki et al.
patent: 4613060 (1986-09-01), Ulbrich et al.
patent: 5199594 (1993-04-01), Obara et al.
patent: 5353085 (1994-10-01), Kurematsu et al.

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