Key-pad operating mechanism of saxophone
US5990398A · kind A · utility
10Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10D7/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A key-pad operating mechanism of the saxophone for forcibly separating a normally closed key-pad from the tone hole seat via an arm using the leverage principle by pressing the operating lever for the normally closed key-pad even if the normally closed key-pad is stuck to the tone hole seat. The mechanism can easily open the normally closed key-pad without affecting any traditional maneuverability of the instrument and prevents key-pads from becoming inoperable during a play.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.