Gas assist injection molding
US6066287A · kind A · utility
9Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A double-walled container is formed by gas assist injection molding. Thereafter, the container is further processed by 1) inserting a gas between the container layers, 2) injecting a colored liquid between the container layers, 3) evacuating the void space between the container layers, or 4) pressurizing the space between the container layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.