Arrangement for carrying out crystal growing experiments under c

Details Arrangement for carrying out crystal growing experiments under c Arrangement for carrying out crystal growing experiments under c

1992-07-31

1993-11-30

Kunemund, Robert

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Crystallizer

422253, 156600, 156DIG62, 156DIG115, C30B 702

Patent

active

052662845

ABSTRACT:
An arrangement for mixing fluids and for growing crystals by the vapor diffusion method under conditions of weightlessness has an exterior housing containing a mixing part and a reaction part. The mixing part has two cylinders in which the starting fluids are stored until the reaction is to be performed. Each cylinder has a piston associated therewith, and internal bores permit the starting fluids to be pumped between the respective cylinders to mix them. Following mixing, the fluids are pumped through a central bore to a cylinder in the reaction part, which also has a piston associated therewith. Withdrawal of the cylinder relative to the piston causes the formation of a drop, permitting the crystallization to take place. Following completion of the reaction, the cylinder is returned to its original position, sucking the fluid into it.

REFERENCES:
patent: 4909933 (1990-03-01), Carter et al.
patent: 5013531 (1991-05-01), Synder et al.
patent: 5106592 (1992-04-01), Stapelmann et al.
Snyder et al. "Protein Crystallization Facilities for Microgravity Experiments" Journal of Crystal Growth vol. 110, No. 1-2 (Mar. 1991) pp. 333-338.

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