Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1989-06-13
1991-11-12
Bertsch, Richard A.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
417477, 604153, F04B 4308
Patent
active
050643584
ABSTRACT:
A peristaltic pump is described for operating simultaneously on two fluid lines having different wall thicknesses comprising a rotatable head having rollers and enclosed within a hollow body. The hollow body has a central axis with an internal first cylindrical surface portion at a first radius R from the axis, and a second cylindrical surface portion at a second radius r from the axis. The interspace between the periphery of the respective roller and the respective cylindrical surface portion is arranged to perfectly occlude the respective different sized fluid line.
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Akers L. C.
Bertsch Richard A.
Kocharov Michael I.
Richardson P. C.
Turner R. C.
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