Induction heating apparatus for injection molding machine
US4940870A · kind A · utility
16Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Feb 22, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a induction heating coil bobbin used to heat the hot runner in an injection molding machine, the bobbin comprising a substantially cylindrical body made of a metal or alloy having its low magnetic permeability, the bobbin body having at least one slit formed therein, the slit extending on the bobbin body between the opposite ends thereof through a predetermined length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.