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Title: US5026681: Diamagnetic colloid pumps
[ Derwent Title ]


Country: US United States of America

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8 pages

 
Inventor: Hed, Aharon Z.; Nashua, NH

Assignee: International Superconductor Corp., Riverdale, NY
other patents from INTERNATIONAL SUPERCONDUCTOR CORP. (282140) (approx. 16)
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Published / Filed: 1991-06-25 / 1989-03-21

Application Number: US1989000334581

IPC Code: Advanced: H02K 44/02; H02K 55/00;
Core: H02K 44/00; more...
IPC-7: H02K 44/02;

ECLA Code: H02K44/02; H02K55/00; Y02E40/62;

U.S. Class: Current: 505/165; 310/011; 417/050;
Original: 505/001; 417/050; 310/011;

Field of Search: 417/050 310/011 290/212,232 505/001

Priority Number:
1989-03-21  US1989000334581

Abstract:     Colloids that are formed by the suspension of superconducting particles in liquids and gases are moved under the influence of external magnetic fields. The devices described have the unique advantage of being capable of moving and manipulating such colloids without resorting to mechanically moving and actuated parts. The apparatuses described have the additional advantage that they allow the control of the flow rate of such pumped colloids by electrical, magnetic or electronic means.

Attorney, Agent or Firm: Dubno, Herbert ;

Primary / Asst. Examiners: Smith, Leonard E.; Scheuermann, David W.

Maintenance Status: E1 Expired  Check current status

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 14 claims
I claim:     1. A method of pumping a liquid, comprising the steps of:
  • (a) dispersing an amount of superconducting particles in said liquid sufficient to enable the resulting dispersion to be displaced by a magnetic field;
  • (b) maintaining said particles at a temperature below the critical temperature for superconductivity thereof; and
  • (c) moving said liquid in which said particles have been dispersed by applying a varying magnetic field gradient thereto.


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Forward References: Show 10 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (10)   |   Backward references (4)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 3pp US731044  1903-06 Gates   DIAMAGNETIC SEPARATION.
Get PDF - 11pp US4526681  1985-07 Friedlaender et al.  Purdue Research Foundation Magnetic separation method utilizing a colloid of magnetic particles
Get PDF - 5pp US4808079  1989-02 Crowley et al.   Magnetic pump for ferrofluids
Get PDF - 14pp US4809354  1989-02 Kawashima  Nippon Seiko Kabushiki Kaisha Hydrostatic bearing utilizing a ferromagnetic fluid
       
Foreign References:
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Publication Date IPC Code Assignee   Title
  JP01123643 1989-05       
Buy PDF SU0642503 1979-01  F04B 17/03 SP K BYURO MAGNITNOJ GIDRODINAMIKI IFIZ AN LATVIJSKOJ SSR ELECTROMAGNETIC INDUCTION PUMP 
Buy PDF SU0931959 1982-05  F04B 43/12 YAREMENKO VLADIMIR,SU PERISTALTIC PUMP 
Buy PDF SU1139506 1985-02  B03C 1/02 DN GORNYJ I IM.ARTEMA ELECTRODYNAMIC SEPARATOR 


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