Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1993-11-23
1996-10-08
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
310 905, H02K 709
Patent
active
055635652
ABSTRACT:
A method and apparatus for compressing magnetic flux to achieve high levitation pressures. Magnetic flux produced by a magnetic flux source travels through a gap between two high temperature superconducting material structures. The gap has a varying cross-sectional area to compress the magnetic flux, providing an increased magnetic field and correspondingly increased levitation force in the gap.
REFERENCES:
patent: 3026151 (1962-03-01), Buchhold
patent: 3493274 (1970-02-01), Emslie et al.
patent: 4132130 (1979-01-01), Schneider
patent: 4870310 (1989-09-01), Triplett
patent: 4886778 (1989-12-01), Moon et al.
patent: 4939120 (1990-07-01), Moon et al.
patent: 4961352 (1990-10-01), Downer et al.
patent: 5012216 (1991-04-01), Jin
patent: 5177387 (1993-01-01), McMichael et al.
patent: 5214981 (1993-06-01), Weinberger et al.
patent: 5270601 (1993-12-01), Rigney, II
patent: 5330967 (1994-07-01), Takahata et al.
"Satellite Power Using a Magnetically Suspended Flywheel Stack," Kirk et al., Journal of Power Sources, vol. 22 (1988), pp. 301-311.
"Magnetic Forces in High-T.sub.c Superconducting Bearings," Moon, Applied Electromagnetics in Materials, vol. 1 (1990), pp. 29-35.
"High-Speed Rotation of Magnets on High T.sub.c Superconducting Bearings," Moon, et al., Appl. Phys. Lett., vol. 56(4), Jan. 22, 1990, pp. 397-399.
"Rotor Dynamics of Flywheel Energy Storage Systems," Jayaraman, et al, Journal of Solar Energy Engineering, vol. 113, Feb. 1991, pp. 11-18.
"A New Process with the Promise of High J.sub.c in Oxide Superconductors," Murakami, et al., Japanese Journal of Applied Physics, vol. 28, No. 7, Jul. 1989, pp. 1189-1194.
"Levitation Forces, Relaxation and Magnetic Stiffness of Melt-Quenched YBa.sub.2 Cu.sub.3 O.sub.x," Moon, et al., Japanese Journal of Applied Physics, vol. 29, No. 7, Jul. 1990, pp. 1257-1258.
"Magnetic bearings using high-temperature superconductors: some practical considerations," Weinberger, et al., Supercond. Sci. Technol. 3 (1990) pp. 381-388.
"Characterization of Composite High Temperature Superconductors for Magnetic Bearing Applications," Weinberger, et al., Invited paper presented at 1990 Applied Superconductivity Conf., Snowmass village, Co, Sep. 24-28, 1990.
"Stability Projections for High Temperature Superconductors," Laquer, et al., IEEE Transactions on Magnets, vol. 25, No. 2, pp. 1516-1519, Mar. 1989.
"Amplitude dependence of magnetic stiffness in bulk high-temperature superconductors," Basinger, et al., Appl. Phys. Lett. 57(27), pp. 2942-2944, Dec. 31, 1990.
"Levitation force and magnetic stiffness in bulk high-temperature superconductors," Change, et al., Journal of Applied Physics 67(9), pp. 4358-4360, May 1, 1990.
"Phenomenology of Forces Acting Between Magnets and Superconductors," Hull, et al., Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, vol. 3, IECEC-90, Aug. 12-17, 1990, Reno, NV.
"Materials Research Issues in Superconducting Levitation and Suspension As Applied to Magnetic Bearings," Moon, et al, Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, vol. 3, IECEC-90, Aug. 12-17, 1990, Reno, NV.
"Characterization of Composite High Temperature Superconductors for Magnetic Bearing Applications", Weinberger et al., IEEE Trans Magn., vol. 27, Mar. 1991.
Barrera Raymond M.
Picard Leo P.
University of Chicago
LandOfFree
Method for obtaining large levitation pressure in superconductin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for obtaining large levitation pressure in superconductin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for obtaining large levitation pressure in superconductin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-60382