Method for manufacturing double-walled liner
US7354496B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Oct 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1033
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A double-walled liner and an apparatus and method for manufacturing said liner, wherein the outer liner of the double-walled liner is seamed longitudinally and transversely, and wherein the apparatus includes: a frame; a supply section for providing webs of inner and outer liner material; a folding section for folding the webs and including a V-form frame structure comprising mutually converging arms which converge towards an apex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.