Trimming of polyester containers using a laser
US4549066A · kind A · utility
16Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1984 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Feb 24, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/806
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This relates to the cutting or trimming of a blow molded polyester resin article utilizing a CO.sub.2 laser. The article is axially positioned and rotated while the laser beam is focused and concentrated on a preselected portion of the article. The laser beam beneficially vaporizes the polyester resin in the cutting thereof as opposed to forming a dust. Further, the action of the laser is one wherein a certain melting occurs so that the resultant cut edge of the retained part of the article is rounded and sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.