Process of making a thermoplastic container
US6835344B2 · kind B2 · utility
2Cited by
2References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 5, 2001 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Jan 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2221/68313
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A recess of a thermoplastic resin container is formed by urging a part of a thermoplastic resin sheet into a cavity of a mold after heating the part of the thermoplastic resin sheet, so that a bottom portion and side walls of the recess are formed, wherein a bottom of the cavity has a convex shape area protruding in a depth direction away from the base portion formed on another part of the thermoplastic resin on the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.