Apparatus for heat treatment of preform necks
US4846656A · kind A · utility
25Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Aug 5, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/013
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for the heat treatment of the necks 1 of performs 2 includes a rotatable mandrel 3, which is inserted in and engaged with the neck of the preform to rotate it, a fixed protective skirt 4, and a heater 5 situated at the level of the neck. A sliding weight 28 is applied to the upper end of the neck during the heat treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.