Pumps – Condition responsive control of pump drive motor – Plural pumps having separate drive motors – supply sources,...
Patent
1973-12-10
1976-07-20
Freeh, William L.
Pumps
Condition responsive control of pump drive motor
Plural pumps having separate drive motors, supply sources,...
417 12, 417315, 418 32, F04B 4106, F04B 1900, F04B 3700
Patent
active
039704130
ABSTRACT:
Systems for delivering fluid at substantially constant pressure to consuming loads which exhibit widely varying demands. The systems employ parallel connected booster pumps which may be operated in either of two rotational directions to provide two output flow rates for each pump.
REFERENCES:
patent: 2960828 (1960-11-01), Gould
patent: 3060858 (1962-10-01), Shoosmith
patent: 3195555 (1965-07-01), Schaub
patent: 3301188 (1967-01-01), Belonger
patent: 3374744 (1968-03-01), Toma
patent: 3726607 (1973-04-01), Garman
Freeh William L.
LaPointe G. P.
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