Reciprocating pump with improved primer element and method

Details Reciprocating pump with improved primer element and method Reciprocating pump with improved primer element and method

1997-06-16

1999-09-14

Kim, Ted

Pumps

Successive stages

Reciprocating rigid stages

417490, 222261, F04B 300, F04B 500, F04B 704

Patent

active

059512598

ABSTRACT:
A reciprocating pump, including: a hollow tube having a first end; a hollow foot valve connected to the tube, the tube and foot valve defining a chamber, said foot valve having a first foot valve end and at least one inlet port formed at the first foot valve end; reciprocating member adapted to be movable in the chamber along a path defined by an axis; drive motor for moving the reciprocating means between a first retracted position and a second extended position; and a primer element connected to the reciprocating means, said primer element having a first dimension and a second dimension, said second dimension being equal to at least half of the first dimension.

REFERENCES:
patent: 454498 (1891-06-01), Robinson
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patent: 3160105 (1964-12-01), Sherman et al.
patent: 3312178 (1967-04-01), Rotter et al.
patent: 4875833 (1989-10-01), Canaud et al.
patent: 5067882 (1991-11-01), DeVries et al.

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