To provide a filtration assembly operable in connection with an automated crystal form screening workstation.
The filtration assembly, interposed between a fluid movement controller and a sampling needle, includes first and second valves, with each valve having an internal passage and first, second and third ports. A filter line is interposed between the first and second valves in fluid communication with the second port of the first valve and the second port of the second valve. A filter medium is operable to filter fluids under both positive and negative fluid pressure conditions. A bypass line is interposed between the first and second valves in fluid communication with the third port of the first valve and the third port of the second valve. An actuator switches the internal passage of the first valve between first and second positions. The first position provides a fluid path through the internal passage between the first port and the second port, and the second position provides a fluid path through the internal passage between the first port and the third port.
DHINGRA OM PARKASH
IGO DAVID HARLAN
WATERS PHILIP WILLIAM
| WO1998046270A2 | 1998-10-22 |
Hiroyuki Nagai
Katsuomi Isogai
Satoshi Nazuka
Junpei Okada
Hideyuki Mori
Yukihiro Hotta
Hiroyuki Ohno