Method for induction sealing a plastic part to a composite container
US6725630B2 · kind B2 · utility
24Cited by
30References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Nov 15, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/717
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for induction sealing a plastic part to a composite container using a pair of linear coils electrically connected to low frequency generators. The linear coils produce overlapping electromagnetic fields on either side of the container. Rotating the container assures even heating of the polyethylene liner and plastic part. The method produces a reliable seal between the liner and plastic part and can be used at high production speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.