Patent EP0133869A2 successfully refreshed from Google Patents.
EP0133869A2
Expired / Lapsed
EP
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Process for separating finely divided magnetic particles from a liquid
Assignee: International Business Machines Corp
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Filing: 1984-05-14
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Granted: —
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Expires: 2004-05-14
Abstract
Abstract Finely divided magnetic particles are separated from a liquid in which they are dispersed by means of a transfer member (2), eg a plastics belt supported and driven by a magnetic drum (1), to which they are attracted by a magnetic field.
Inventors
- 👤 Andrew Marian Homola
- 👤 Ming Ko
- 👤 Max Rudolph Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:59
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/16; B03C1/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
65 words
A process for separating finely divided magnetic particles trom a liquid in which the particles are dispersed, characterized by magnetically attracting the particles to a transfer member (2) moving through the liquid, magnetically maintaining the particles on the transter member (2) while the particles are removed trom the liquid to a transfer station, and removing the particles from the transfer member at the transfer station.
Claim 2
Dependent Claim
65 words
A process for separating finely divided magnetic particles trom a liquid in which the particles are dispersed, characterized by magnetically attracting the particles to a transfer member (2) moving through the liquid, magnetically maintaining the particles on the transter member (2) while the particles are removed trom the liquid to a transfer station, and removing the particles from the transfer member at the transfer station.
Claim 3
Dependent Claim
92 words
A process as claimed in claim 1, in which the transfer member is a belt (2) driven by a rotatable magnetic drum (1) positioned so that the lower portion of the drum is below the surface of the liquid and the upper portion of the drum is above the surface, the arrangement being such that the drum first drives the transfer belt below the surface of the liquid where the magnetic particles are attracted to the belt and then drives the belt above the surface of the liquid to the transfer station.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 1 or claim 2, in which the magnetic particles are silica coated iron oxide particles.
Claim 5
Dependent Claim
21 words
A process as claimed in any preceding claim, in which the particles are needle-shaped and less than 0.5 microns in length.
Claim 6
Dependent Claim
18 words
A process as claimed in any preceding claim, in which the transfer member is made of polyethylene terephthalate.
References Cited (Backward Citations)
No citation records indexed.
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