Piston pump

Details Piston pump Piston pump

1974-12-24

1976-06-29

Freeh, William L.

Pumps

Expansible chamber type

Plural pumping chambers

417540, 92 581, F04B 2504

Patent

active

039663647

ABSTRACT:
A single acting dual piston positive displacement pump with alternating piston motion. A pump suitable for manual operation and operable at relatively high pressure such as 400 to 800 psig. A pump suitable for pumping corrosive liquids with the drive mechanism separated from the liquid lines. A pump housing with cylinder section and abutting manifold section, with the alternating reciprocating pistons in the cylinder section and the inlet and outlet openings in the manifold section, with the pistons projecting from the cylinder section opposite the inlet and outlet openings for connection to the piston drive mechanism.

REFERENCES:
patent: 202821 (1878-04-01), Hoffman
patent: 439992 (1890-11-01), Anderson
patent: 1328529 (1920-01-01), Lillos
patent: 1400422 (1921-12-01), Curtis
patent: 1447669 (1923-03-01), Landin
patent: 1915827 (1933-06-01), Kickler
patent: 3253518 (1966-05-01), Dopmler
patent: 3282224 (1966-11-01), Bock et al.
patent: 3410477 (1968-11-01), Hartley
patent: 3730651 (1973-05-01), Ellis

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