Evacuation device

Details Evacuation device Evacuation device

1975-03-10

1976-10-19

Nilson, Robert G.

Fluid handling

With heating or cooling of the system

34 92, 137565, 137599, F26B 504

Patent

active

039865215

ABSTRACT:
An evacuation device for removing volatile components from a reaction ves of a protein sequenator and requiring connection to a single vacuum pump is provided. The evacuation device includes a vacuum path having a downstream end thereof connectable through a cooling trap to the vacuum pump and an upstream end defining an input. The vacuum path additionally includes a shutoff valve intermediate the length thereof. A further vacuum path bridges the first mentioned vacuum path upstream and downstream of the shutoff valve and has a smaller vacuum cross-section and houses a throttle therein, the second vacuum path being used for generating a prevacuum in response to the closing of the shutoff valve in the first mentioned vacuum path.

REFERENCES:
patent: 2589373 (1952-03-01), Hammock
patent: 3018561 (1962-01-01), Wells
patent: 3126902 (1964-03-01), Fite et al.
patent: 3178829 (1965-04-01), Cox

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