Hose
US8720066B2 · kind B2 · utility
1Cited by
75References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Nov 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4981
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a bellows hose, which is capable of being used without leakage, and which has a longer length and/or diameter than has been previously achievable. A bellows hose comprises an inner tubular bellows and an outer tubular bellows. An insulation layer is provided between the bellows. An armoured layer is provided around the outer bellows, to improve the insulation further. The hose can have length above 30 m and a diameter above 400 mm. A method of, and apparatus for, making the hose are also described, which involves the use of a non-metallic mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.