A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
103/31, 128/80
A61M 5/00 (2006.01)
Patent
CA 1264631
ABSTRACT A hose pump consisting of a hose , at least one, preferably two pressure rollers , a support plate and a drive source . The hose is placed in a hose receiving track in the support plate . The rollers are rotatably journalled on a common rotary shaft ,whose centre is firmly connected with a drive shaft , which is perpendicular to the support face of the support plate engaging the rollers. The rollers act on the hose in the flow direction of the pump and alternately determine, in specific angle ranges, the liquid volume flow discharged. The succeeding roller cooperates with the hose in such a manner that the hose is completely closed when the forwardly disposed roller , as seen in the flow direction, initiates its disengaging movement away from the hose . During the following opening movement of the forwardly disposed roller from having closed the hose completely to letting it be completely open, the succeeding roller cooperates with the hose so that the hose, in addition to discharging a volume flow corresponding to the normal volume flow of the pump , also discharges an additional volume flow to compen- sate for the loss caused by the opening movement of the forwardly disposed roller . Then, the volume flow discharged by the pump is constant per unit of time. Further, reverse suction in the outlet end of the hose is obviated.
527122
Ejlersen Henning Munk
Swabey Ogilvy Renault
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