Moulding device for the manufacture of thermoplastic containers by blow moulding or stretch-blow moulding
US7878794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2008 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2049/5896
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Device for moulding thermoplastic containers by the blow moulding of preforms, comprising a mould (1) and a blowing assembly (2) with a nozzle (16) that can move axially between a raised position and a blowing position in fluid connection with a preform supported in the cavity of the mould. The half-moulds (3a, 3b) of the mould bear respective parts (Aa, Ab) together forming a male element (A) bordered by a wall (12) inclined towards the nozzle. The blowing assembly bears a female element (B) formed by a clamp (26) having an internal wall (30) complementary to the wall of the protuberance. In the blowing position, the cooperation between the male and female elements (A, B) locks the upper part of the closed mould.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.