Method for producing a weld-line free injection molded plastic container body portion
US5346659A · kind A · utility
29Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Nov 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7156
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding mechanism and method of its use for the formation in a single sequence of operations of weld-line free cylindrical container body portions having a central opening at one end. The central opening is formed by the removal of the central top sprue portion of the container body. The container body produced by this mechanism can be used as a pressurizable dispensing container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.