Torque sensitive sanitary diaphragm valves for use in the...

Valves and valve actuation – Lost motion between actuator and valve – Overload release

Reexamination Certificate

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C251S273000, C251S331000

Reexamination Certificate

active

07004447

ABSTRACT:
This invention relates to pressure torque sanitary diaphragm valves and methods of using torque sensitive sanitary valves in the production of chemical and biological therapeutics to obtain procedural reproducibility in the production pharmaceutical compounds and intermediates related thereto.

REFERENCES:
patent: 2725211 (1955-11-01), Boteler
patent: 2895708 (1959-07-01), Palumbo
patent: 3091427 (1963-05-01), Boteler
patent: 5953965 (1999-09-01), Kaneyama et al.
patent: 6047953 (2000-04-01), Jacob, Jr.
patent: 6196523 (2001-03-01), Miyata et al.
patent: 6241213 (2001-06-01), Butler
patent: 6575431 (2003-06-01), Artsvelynan
patent: 2001/0027133 (2001-10-01), Kimura et al.
patent: 2003/0078106 (2003-04-01), Carstensen et al.
patent: 2003/0081986 (2003-05-01), Gordon
patent: 2003/0155546 (2003-08-01), Browne et al.

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