Adjustably controllable accuracy-enhancing pump arrangement and

Details Adjustably controllable accuracy-enhancing pump arrangement and Adjustably controllable accuracy-enhancing pump arrangement and

1988-06-08

1991-06-18

Huppert, Michael S.

Dispensing

Processes of dispensing

222 14, 222214, 417477, B67B 700

Patent

active

050243470

ABSTRACT:
An adjustably controllable accuracy-enhancing pump arrangement and method is disclosed, as embodied in a digitally pulse-driven rotary peristaltic pump having a rotor which acts on a fluid pumping conduit to effect pumped output of fluid. Inaccuracies in volume pumped for a given quantity of pulses applied to the pump intended to effect a selected desired volume are minimized by adjusting the total quantity of pulses applied to the pump for a given desired volume, and/or for subsequent selected volumes, if desired, as a function of an adjustment factor formed by the ratio of the given desired volume relative to actual volume pumped by the application to the pump of the quantity of pulses estimated or calculated to be required for pumping the given desired volume through a given sized tube set conduit.

REFERENCES:
patent: 4108575 (1978-08-01), Schal
patent: 4217993 (1980-08-01), Jess et al.
patent: 4331262 (1982-05-01), Snyder et al.
patent: 4670007 (1987-06-01), Wheeldon et al.
patent: 4715786 (1987-12-01), Wolff et al.

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