Base configuration for an internally pressurized container
US4785949A · kind A · utility
114Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Dec 11, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D1/0284
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
This relates to the base configuration of a biaxially oriented blow molded thermoplastic resin container. It has been found that by assigning more space to the ribs between adjacent legs and feet, during the blow molding of a preform, there is proportionally less thinning of the material of the preform in accordance with the greater width of rib, thereby providing greater strength in the high stress area of the base structure with a resultant lesser failure due to stress cracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.