Adjustable keyboard apparatus and method
US6930234B2 · kind B2 · utility
66Cited by
45References
20Claims
0Family size
Inventor
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Jul 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H1/346
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A keyboard apparatus for musical instruments such as pianos, organs, clavichords, and harpsichords, and methods for making and using the apparatus. The apparatus includes a frame assembly, a plurality of keys, a plurality of lever assemblies each operably connected with its corresponding key, and a main fulcrum that together replicate the touch of an acoustic piano keyboard. It can be used in electronic and acoustic instruments, can be adjusted to simulate the feel of a selected type of keyboard instrument, and is simple and cost-effective to manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.