Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1979-04-18
1981-03-17
Croyle, Carlton R.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
417475, 417476, F04B 4506
Patent
active
042564425
ABSTRACT:
An improved peristaltic pump includes a pivotably mounted pressure plate which, together with the pump roller elements, defines the pump chamber. The pivotal mounting of the pressure plate facilitates accessibility to the pump chamber in order to simplify the pump tube loading and unloading procedures. The mounting system for the pressure plate includes a mechanically-advantaged four-bar linkage arrangement which automatically retains the pressure plate in either its fully open or fully closed position as a result of an over-center type locking construction. The pump also includes a mechanism for adjusting the volume flow rate characteristic of a pump tube. This is particularly adaptable for a dual-tube system wherein a predetermined volume flow rate ratio is to be achieved.
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Cullis Herbert M.
Lamadrid Rene G.
Baxter Travenol Laboratories Inc.
Benziger Robert A.
Cronmiller Rae Evans
Croyle Carlton R.
Flattery Paul C.
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