Molding unit comprising a compensation chamber delimited by a membrane, membrane for such a unit and machine equipped with such a unit
US7048531B2 · kind B2 · utility
6Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2001 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jan 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2067/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a molding unit comprising, between two components consisting of a mold element (22) and its support (18), a compensating chamber (56) wherein a pressurized fluid is injected to move apart the mold element (22) from its support (18). The invention is characterized in that the chamber (56) is delimited by a membrane (42) comprising a peripheral seal (44) with a lip, the membrane (42) being urged to press against one of the components (22, 18) and the seal lip (44) being urged to be tightly pressed against the other of the components (18, 22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.