DOUBLE PISTON DIFFERENTIAL TYPE PUMP
United States Patent 3470821
US Patent References:
Pump for hydraulic systems
- - 2337831
Master cylinder
- - 2341318
Pump for use in hydraulic transmission of power
- - 2372375
Fluid operated device
- - 2414484
Infinite stage pump
- - 2472104
Pump for hydraulic systems
- - 2337831
Master cylinder
- - 2341318
Pump for use in hydraulic transmission of power
- - 2372375
Fluid operated device
- - 2414484
Infinite stage pump
- - 2472104
Inventors:
Robirds, Richard W.
Mason, John F.
Mason, John F.
Publication Date:
10/07/1969
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Export Citation:
Assignee:
HALLIBURTON CO
Primary Class:
Other Classes:
417/567
International Classes:
F04B1/02; F04B9/14; F04B1/00; F04B9/00; F04B5/00; F04B19/22; F04B49/08
US Patent References:
| 3112705 | Two-speed hydraulic pumps |