Piano action
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 6, 2016
Grant Date -
Jan 1, 2015
app pub date -
Jun 18, 2014
filing date -
Jun 27, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Obtained is a structure of a piano action by which excellent playing reproducibility is secured even in a case of playing by repeatedly striking a key at an extremely high speed. In a piano action including a plurality of hammers 31 for striking keys, hammer shanks 32 that support the hammers turnably, hammer rails 1 that restrict the hammer shanks 32 from turning after the hammers strike strings, and hammer cushions (shock absorbing materials) 100 that are placed on the hammer rails and absorb motion energy generated by collision with the hammer shanks 32, the hammer cushions (shock absorbing materials) 100 are disposed at an angle so as not to become parallel to contact surfaces of the hammer shanks 32.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- G10C Class
- 35 Applications Filed
- 30 Patents Issued To-Date
- 85.72 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G10C Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 6, 2028 |
