Oven for heating moving thermoplastic material container blanks
US7291811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Dec 27, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/0822
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An oven for heating moving thermoplastic blanks (preforms, intermediate containers), which includes conveying devices for supporting and moving the blanks sequentially while rotating each of them about its own axis. A heating device is arranged laterally to the conveying device for heating the moving blank bodies, and the conveying device includes at least two parallel conveying branches, proximate each other and having opposite conveying directions, the two branches being traveled along one after the other by the blanks. The heating device is arranged between the two conveying branches so as to heat simultaneously on both sides of the blanks moving in opposite directions respectively on the two branches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.