Helical gear pump
United States Patent 3299822
US Patent References:
Rotary engine or pump
- - 1636486

Screw pump
- - 1861155

Gear mechanism
- - 2028407

Helical gear shallow well pump
- - 2512764

Rotary internal combustion engine
- - 2988065


Inventors:
Eaton, Payne Stanley Ashbourne
Publication Date:
01/24/1967
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Assignee:
MONO PUMPS LTD
Primary Class:
418/48
Other Classes:
418/182, 418/61.200
International Classes:
F04C2/107; F04C2/00
US Patent References:
3165065Flexible coupling for screw pump rotors
3203350Helical multiple pump
Foreign References:
GB425447A