Method of making a precisely partitioned bulbous-shape container
US4065536A · kind A · utility
56Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1975 |
| Grant date | Dec 27, 1977 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A longitudinally partitioned bulbous-shape, top-opening container of unitary construction is provided which comprises a precisely shaped, sized, and oriented integral bulkhead. Such containers may be made by the method of providing a thermoplastic preform which is longitudinally partitioned by an integral bulkhead of the size, shape, and orientation desired in the finished container, and then blow molding the outer wall of the preform to the bulbous-shape of the finished container while constraining or confining the bulkhead from changing size, shape, or orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.