Measuring and testing – Measuring vessel
Patent
1977-09-06
1978-09-26
Swisher, S. Clement
Measuring and testing
Measuring vessel
G01N 124
Patent
active
041160673
ABSTRACT:
Fluid sampling apparatus employs one or more syringes having cylinder and plunger elements. A cam cooperates with a follower on one of such elements of each syringe, in response to rotation motion between the syringe and cam, to displace the follower for relatively displacing the plunger and cylinder thereby to displace fluid through an opening associated with each cylinder. Blocking structure blocks the opening when the follower is not being displaced by the cam.
REFERENCES:
patent: 3726144 (1973-04-01), Klein
patent: 3884081 (1975-05-01), Griffith
Pankratz David V.
Wright Bruce E.
AeroVironment Inc.
Haefliger William W.
Swisher S. Clement
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