Method of manufacturing a piano plate assembly and the assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 16, 1985
Grant Date -
N/A
app pub date -
Jan 17, 1983
filing date -
Jan 17, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plate assembly as herein disclosed can be constructed to be used in place of the plate assembly in any piano. It is constructed primarily of composite material and replaces the conventional cast iron plate or plate assembly. The assembly has better shape and dimensional stability under the influences of time, temperature variation and moisture, and is lighter weight and lower cost. These features allow use of a lighter weight piano frame. The net results are that a piano having optimum performance is more readily transported, its manufacturing and maintenance costs are less and the effects of time, temperature variation and moisture are minimal. The plate structure comprises specially designed and joined composite material elements, arranged to take best advantages of the characteristics of composite materials applied to serve the functional/structural purposes of piano plates.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully