Pumps – Motor driven – Electric or magnetic motor
Patent
1994-09-12
1996-02-27
Bertsch, Richard A.
Pumps
Motor driven
Electric or magnetic motor
F04B 4309
Patent
active
054944155
ABSTRACT:
A magnetically-driven pump transferring fluid through a conduit is provided, having an electromagnet assembly selectively excited by a power source, and a non-ferromagnetic lever structure extending from the electromagnet assembly to the conduit, the lever structure having a ferro-magnetic portion, which may consist of a plate, at one end movable by the electromagnet assembly between a release position where the ferro-magnetic portion is angularly offset relative to the electromagnet assembly and a compression position where the ferro-magnetic portion is in substantially parallel contact with the electromagnet assembly, the ferro-magnetic portion enabling a striker portion at another end of the lever structure to compress the conduit at a predetermined frequency. The lever structure couples movement of the ferro-magnetic portion at one end with movement of a striker at the other end such that the ferro-magnetic portion moves within a lesser arcuate range and the striker moves within a greater arcuate range. To reduce operating noise, the lever may be pivotally mounted on a translating shaft, enabling a part of the ferro-magnetic portion to remain in contact with the electromagnet assembly while in and between the release and compression positions.
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Bertsch Richard A.
Korytnyk Peter G.
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