Magnetically-driven pump
First Claim
1. A pump for transferring fluid in a conduit, comprising:
- an electromagnet assembly selectively excited by a power source; and
a non-ferromagnetic lever structure extending from the electromagnet assembly to the conduit, said lever structure having a ferro-magnetic portion at one end movable by the electromagnet assembly between a release position where said ferro-magnetic portion is angularly offset relative to the electromagnet assembly and a compression position where said ferro-magnetic portion is in substantially parallel contact with the electromagnet assembly, said ferro-magnetic portion enabling a striker portion at another end of the lever structure to compress said conduit when said electromagnet assembly is excited.
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Accused Products
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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Citations
20 Claims
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1. A pump for transferring fluid in a conduit, comprising:
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an electromagnet assembly selectively excited by a power source; and a non-ferromagnetic lever structure extending from the electromagnet assembly to the conduit, said lever structure having a ferro-magnetic portion at one end movable by the electromagnet assembly between a release position where said ferro-magnetic portion is angularly offset relative to the electromagnet assembly and a compression position where said ferro-magnetic portion is in substantially parallel contact with the electromagnet assembly, said ferro-magnetic portion enabling a striker portion at another end of the lever structure to compress said conduit when said electromagnet assembly is excited. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A pump for transferring fluid in a tubular conduit from a source to a sink, comprising:
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an electromagnet assembly excited at a predetermined frequency, said electromagnet assembly providing a planar surface; a non-ferromagnetic lever structure extending from the electromagnet assembly to the conduit, said lever structure having a ferro-magnetic plate member adjacent one end, said ferro-magnetic plate member facing said planar surface of said electromagnet assembly and being movable by the electromagnet assembly between a release position where said ferro-magnetic plate member is angularly offset relative to the electromagnet assembly and a compression position where said ferro-magnetic plate member is in contact with the electromagnet assembly substantially over the planar surface, said lever structure providing a striker portion at another end to compress said conduit when said electromagnet assembly is excited. - View Dependent Claims (18, 19, 20)
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Specification