Bellows pump

Details Bellows pump Bellows pump

1991-12-03

1992-11-24

Bertsch, Richard A.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

417372, F04B 1700, F04B 3500

Patent

active

051658666

ABSTRACT:
In a bellows pump, a bellows is vertically located and has an upper and a lower end sections. The upper end section is inserted in a mounting through hole of an upper frame portion. It is detachably mounted in the frame portion by engagement between projections and communicates with a pump head. The lower end section is detachably mounted by engagement between projections in an upper connecting end portion of a reciprocating member. A torque from a motor is received by a motion conversion mechanism including an eccentric cam member and a reciprocating member, and causes elongation and contraction of the bellows in vertical direction. A motor shaft is loosely engaged with the eccentric cam member, which is supported by a pin shaft and extends along a horizontal axis of the motor shaft.

REFERENCES:
patent: 2553247 (1951-05-01), Fowler
patent: 4457672 (1984-07-01), Ogura et al.

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