IP Library › Granted Patent US 7,004,447
Granted Patent B2
US 7,004,447 · App. 10/713,832 · Granted Feb 28, 2006

Torque sensitive sanitary diaphragm valves for use in the pharmaceutical industry and methods related thereto

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Quick Facts
Patent No.
US 7,004,447
App. No.
10/713,832
Granted
Feb 28, 2006
Kind
B2
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.

Claims (1)

1. A torque sensitive sanitary diaphragm valve comprising: (a) a housing having a flow housing area with a shape for the transfer of solution through the flow housing area and a stem housing area with a first opening attached to the flow housing area and a second opening threaded; (b) a stem with a top, a middle counter-threaded for the stem housing's second opening, and a bottom shaped to mate with the shape of the flow housing area; (c) a handle; (d) a diaphragm with a chemical contact side and a stem contact side located in the first opening of the stem housing between the stem and the flow housing area; and (e) a slipping mechanism located between the handle and the stem.

Continuity (1)
Related Publication 20050104021A1 · May 19, 2005