Biasing force adjusting apparatus for electromagnetically driven

Details Biasing force adjusting apparatus for electromagnetically driven Biasing force adjusting apparatus for electromagnetically driven

1988-06-01

1989-06-13

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

310 15, 92 131, 92132, F04B 4900

Patent

active

048387711

ABSTRACT:
A biasing force adjusting apparatus is used for an electromagnetically driven reciprocating pump in which the piston is reciprocated to achieve pumping by a magnetic force cyclically generated from an electromagnet and a biasing force of a compression coil spring. The apparatus includes a pressing mechanism having a piston-cylinder unit to which a compressor is connected. The unit is detachably connected to a spring support to press the support at a predetermined pressure, and then a fixing screw is tightened to fix the support on a housing of the pump.

REFERENCES:
patent: 4021152 (1977-05-01), Toyoda
patent: 4159105 (1979-04-01), Vander Laan et al.
patent: 4169695 (1979-10-01), Masuda et al.
patent: 4252505 (1981-02-01), Toyoda
patent: 4272225 (1981-06-01), Fujinaka et al.
patent: 4278406 (1981-07-01), Cooperrider

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