Induction heater having an alternating current conductor
US4629844A · kind A · utility
8Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1985 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Aug 28, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/85
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An induction heater has a conductor loop (1) in which a large alternating current is induced by a toroidal primary transformer (8). An annular secondary magnetic core (4) encircles a straight length of the conductor loop (1) and is itself enclosed by inner and outer cylinders (2 and 5) interconnected by annular end plates (6 and 9). The current in the conductor (1) produces magnetic flux in the core (4) which in turn produces axial heating currents in the cylinders (2 and 5). The inner cylinder (5) may have heated fins (3). An alternative embodiment has an inductively heated screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.