Industrial electric heating furnaces – Induction furnace device – Zone melting
Patent
1996-07-09
1999-03-23
Hoang, Tu Ba
Industrial electric heating furnaces
Induction furnace device
Zone melting
219648, 219672, H05B 630, H05B 632
Patent
active
058870180
ABSTRACT:
An electromagnetic levitator is disclosed, comprising: a plurality of longitudinal sections formed from a conducting material and arranged around a longitudinal axis. The longitudinal sections are connected to a power source such that when the levitator is in operation, current flowing through adjacent longitudinal sections creates opposing magnetic fields. The levitator has first and second ends defining a levitation zone therebetween. When alternating current is passed through the conductors, a levitation tunnel is formed in the levitation zone, with the levitation tunnel having zero magnetic flux density along its center and non-zero magnetic flux density at all other points.
REFERENCES:
patent: 2686864 (1954-08-01), Wroughton et al.
patent: 2722589 (1955-11-01), Marquardt
patent: 4110586 (1978-08-01), Kohl et al.
patent: 4414285 (1983-11-01), Lowry et al.
patent: 4539456 (1985-09-01), Mohr
patent: 4678024 (1987-07-01), Hull et al.
patent: 4738713 (1988-04-01), Stickle et al.
patent: 4761579 (1988-08-01), Delassus
patent: 4874346 (1989-10-01), Wachspress
patent: 4979182 (1990-12-01), Lohoefer
patent: 5150272 (1992-09-01), Danley et al.
patent: 5155651 (1992-10-01), Yoda et al.
patent: 5319670 (1994-06-01), Fox
patent: 5341867 (1994-08-01), Yamada et al.
Sergio R. Sagardia and R.S. Segsworth; Electromagnetic Levitation Melting of Large Conduction Loads; IEEE Transactions on Industry Applications, Jan./Feb. 1977; (pp. 49-52).
Yildiz Bayazitoglu and Udaya B. Sathuvalli; Eddy Current Heating in an Electrically Conducting Sphere; Journal of Materials Processing & Manufacturing Science; vol. 3, No. 2, Oct. 1994 (pp. 117-141(.
A. P. Vutsens; Physical Simulation Studies of Levitation of Liquid Metal Above Parallel Busses; 1974 Consultants Bureau, A division of Plenum Publishing Corp.; (pp. 304-307).
Professor Yildiz Bayazitoglu; Thermal Science Problems in `Non-Contact` Materials Processing ; First International Thermal Energy Congress Proceedings--vol. 1; ITEC-93-6-10 Jun. 1993 (pp. 55-59).
Bayazitoglu Yildiz
Shampine Rod W.
Hoang Tu Ba
WM. Marsh Rice University
LandOfFree
Longitudinal electromagnetic levitator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Longitudinal electromagnetic levitator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Longitudinal electromagnetic levitator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2133533