Damper mechanism for upright piano
US5022302A · kind A · utility
8Cited by
6References
12Claims
0Family size
Inventor
Key dates
| Filing date | Feb 20, 1990 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Feb 20, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10C3/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a damper mechanism for upright piano, comprising a damper felt mounted on a damper wood, and in which the damper wood is equipped with a guide stem directionally adjusted perpendicularly to the plane of the strings and guided to move reciprocally in a bore of a block fixed on a support independent of the mechanism controlling the hammers. Members are interposed between the key and the damper guide stem for reciprocally moving the latter in response to the movement of the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.