Method for making containers such as bottles having a self-stabilizing base
US6153145A · kind A · utility
9Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1997 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Oct 9, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/0715
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A container such as a bottle or the like consisting of a biaxially oriented thermoplastic material and capable of withstanding a relatively harsh use environment without noticeably losing its shape. Said container has an inwardly curved base (2) with an inwardly projecting convex portion as in a champagne bottle bottom, and a substantially greater thickness than the side wall (3) of the container. Said base (2) includes an outwardly-facing non-convex central portion (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.