Apparatus and method for reforming the neck finish end surface of a blow molded plastic container
US7435073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Oct 10, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for reforming an annular end sealing surface of a molded plastic container includes a head having an annular contact surface and a drive for bringing the annular contact surface into contact with the annular end sealing surface of the container. The head and the container do not rotate relative to each other during this contact reforming operation. Heat is applied through the contact surface to the end sealing surface while the surfaces are in contact to raise the temperature at the end sealing surface to at least the softening temperature of the plastic material, so that the end sealing surface is softened and reformed by heat and contact with the contact surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.