Shutter for closing openings with pivotal shutter elements
US6854544B2 · kind B2 · utility
54Cited by
20References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Jun 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shutter for closing openings with pivotal shutter elements, the rotational axes of which are arranged parallel to each other. Better sealing is achieved in that the shutter elements consist of at least two wings that are solidly joined together and arranged almost parallel to each other. The wings of the shutter elements are oriented substantially parallel to an imaginary plane of the opening, thus closing it on both sides, in a first position and substantially normal to the plane of the opening, thus clearing said opening, in a second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.