Ribbed preform for use in the blow molding of a plastic material container
US4977005A · kind A · utility
13Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1979 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Nov 27, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A champagne bottom plastic bottle having the bottom reinforced by internal radiating ribs which are formed by solid material. The bottle is formed in the customary manner by utilizing a preform which has molded on the inner surface thereof longitudinal ribs. The preform is formed by conventional injection molding equipment which has been modified only to form along the lower part of the customary core member longitudinally extending rib forming grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.