Bellows pump for a gas-testing tube

Details Bellows pump for a gas-testing tube Bellows pump for a gas-testing tube

G - Physics

01

N

230/43

G01N 1/14 (2006.01) F04B 7/00 (2006.01) F04B 45/02 (2006.01) G01N 1/24 (2006.01)

Patent

CA 1329576

Abstract A bellows pump for gas-testing tubes with two grips that are spring loaded in the direction of the sample-collecting stroke and an outlet valve is to be so improved that only complete, non- manipulable suction strokes of a precisely defined volume can be effected. To this end, provision is made that within the suction channel (9) between the gas-testing tube (8) and the interior of the bellows (21) there is an inlet valve (10) that closes in the direction of the bellows interior (21) and which can be opened to initiate a complete sample-collecting stroke by operating the grips (2, 3), and which remains open during the sample-collecting stroke.

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