Blow needle for extrusion blow molding PET
US8523557B2 · kind B2 · utility
0Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Aug 17, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2067/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a hollow blow needle for introducing a pressurized fluid into an extruded parison enclosed by two mold halves, the needle comprising: a body portion having an inner first diameter; a neck portion having an inner second diameter, wherein the inner second diameter is less than the inner first diameter; and a tip portion comprising a first angled portion, a second angled portion that is a different angle relative to the first angled portion, and an orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.