Two-stage hydraulic pressure pump
United States Patent 2604047
US Patent References:
/1345808.html
- - 1345808

Pump for viscous liquids
- - 1632304

Hydraulic transmission
- - 1722832

Pumping and distributing mechanism
- - 1971601

Hydraulic pump or motor
- - 2015423


Inventors:
Bernard, Beaman
Julius, Hulman
Stein, Robert A.
Publication Date:
07/22/1952
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Assignee:
Hulman
Primary Class:
417/206
Other Classes:
417/252
International Classes:
F04B1/20; F04B1/32; F04B23/10; F04B49/24; F04B1/12; F04B23/00; F04B49/22
US Patent References:
2069651Pump or motor
2229715Pump and motor
2280815Method of obtaining sterols
2292125Rotary fluid pump
2459786Hydraulic pressure pump or motor
2495685Two-stage hydraulic pressure pump