Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1998052385) INDUCTION HEATING DEVICE FOR METAL PIECES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052385 International Application No.: PCT/GB1998/001290
Publication Date: 19.11.1998 International Filing Date: 01.05.1998
Chapter 2 Demand Filed: 14.12.1998
IPC:
H05B 6/02 (2006.01) ,H05B 6/44 (2006.01)
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
6
Heating by electric, magnetic, or electromagnetic fields
02
Induction heating
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
6
Heating by electric, magnetic, or electromagnetic fields
02
Induction heating
36
Coil arrangements
44
having more than one coil or coil segment
Applicants:
COREFLUX SYSTEMS INTERNATIONAL LIMITED [GB/GB]; Unit 3A Stadium Close, Dukeries Industrial Estate Claylands Avenue Worksop Nottinghamshire S81 7DJ, GB (AllExceptUS)
ANDERSON, Walter, James [GB/GB]; GB (UsOnly)
HIGGINS, Barrie [GB/GB]; GB (UsOnly)
SPENCER, Paul, John [GB/GB]; GB (UsOnly)
POWELL, Brian, Kenneth [GB/GB]; GB (UsOnly)
BROWNING, Philip, Anthony [GB/GB]; GB (UsOnly)
Inventors:
ANDERSON, Walter, James; GB
HIGGINS, Barrie; GB
SPENCER, Paul, John; GB
POWELL, Brian, Kenneth; GB
BROWNING, Philip, Anthony; GB
Agent:
LOVEN, Keith, James; Loven and Co. Quantum House 30 Tentercroft Street Lincoln LN5 7DB, GB
Priority Data:
9709557.413.05.1997GB
9725737.203.12.1997GB
Title (EN) INDUCTION HEATING DEVICE FOR METAL PIECES
(FR) DISPOSITIF DE CHAUFFAGE PAR INDUCTION POUR PIECES METALLIQUES
Abstract:
(EN) A magnetic heating device comprising three electrical coils, each coil being wound around a respective magnetic yoke having a gap therein, the three yokes being arranged such that the gaps are adjacent to each other or coincident, an article to be heated being located, in use, in the gaps in the three yokes, so as to direct the magnetic field generated in each yoke by its respective coil through the articles, each coil being connected to a respective different phase of a three phase low frequency alternating electrical supply, and one of the coils being wound in the opposite direction to the other two coils.
(FR) L'invention concerne un dispositif chauffant magnétique constitué de trois bobines électriques. Chaque bobine est enroulée autour d'une culasse magnétique présentant un entrefer. Les trois culasses sont disposées de façon que leurs entrefers soient adjacents ou coïncident. En utilisation, on place un article à chauffer dans les entrefers des trois culasses, de façon à diriger dans l'article le champ magnétique que chaque bobine génère dans la culasse correspondante. Chaque bobine est connectée à une phase différente d'une alimentation électrique basse fréquence triphasée, et une des bobines est enroulée en sens inverse des deux autres.
front page image
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0981930US6538239JP2001525111 AU1998073422