Air passage switching door
US6523805B2 · kind B2 · utility
4Cited by
3References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | May 26, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00714
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material in low cost, while having a reduced thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.