Pump assembly

Details Pump assembly Pump assembly

1974-05-17

1976-06-29

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

417 18, 417 44, 417 45, 417 46, 3 17, 128 1D, F04B 4906

Patent

active

039663582

ABSTRACT:
A pump assembly is disclosed which includes a pump which is externally controlled to vary with time the volume and/or the pressure of fluid pumped therethrough. A memory unit is programmed to provide a desired volume-time and/or pressure-time characteristic. The output of the memory is utilized to drive the pump to provide the aforementioned pump characteristics. Provision is made for appropriately modifying the stored program in accordance with preselected parameters so that the pump can, for example, operate in conjunction with an artificial heart.

REFERENCES:
patent: 3160101 (1964-12-01), Bartoseski
patent: 3421497 (1969-01-01), Chesnut
patent: 3426743 (1969-02-01), Chesnut
patent: 3750644 (1973-08-01), Ragsdale
patent: 3842440 (1974-10-01), Karlson
patent: 3882861 (1975-05-01), Kettering

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