Reciprocating pump with simplified seal replacement

Details Reciprocating pump with simplified seal replacement Reciprocating pump with simplified seal replacement

1996-02-20

1997-07-15

McAndrews, Roland

Pumps

Expansible chamber type

Including valve assembly, disassembly, or inspection...

417554, F04B 5322

Patent

active

056477376

ABSTRACT:
A reciprocating pump, comprising a reciprocating motor having a housing body which includes an open first end and a base at the first end, the base substantially closes the first end of the motor housing. The motor also includes a reciprocating member movable by the motor. The member has an end and is adapted to be movable through a housing body chamber. The reciprocating pump includes a pump outlet having a first end, a second end, a pumped fluid outlet port between the ends, and a passageway joining said ends and adapted to receive the end of the reciprocating member. The passageway has a minimum width and the outlet body is connected to the pump base. The reciprocating pump also includes a pump member adapted to be flow connected to the second end of the outlet body. The pump member has a movable check for displacing the pumped fluid to the outlet, said movable check being operatively connected to said end of said reciprocating member and said check also having a width that is less than the minimum width of the passage so that the check is serviceable with the reciprocating pump in line.

REFERENCES:
patent: 2281933 (1942-05-01), Gage
patent: 2404502 (1946-07-01), Kehle
patent: 4775303 (1988-10-01), Liska
patent: 5435697 (1995-07-01), Guebeli et al.
Orion Sales Brochure for Reciprocating Pumps, 1993.
Graco Sales Brochure for Double Acting Oil Pumps, 1994.

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