Grand piano composite piano action

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United States of America Patent

PATENT NO 7687693
SERIAL NO

11762990

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Composite or plastic molded articles used in a grand piano action. A piano action actuates in response to depression on a piano key to swing a hammer into a piano string. The articles are assembled to form a piano action with significantly less dynamic mass which is much more responsive to the touch. In addition, the new action provides the valuable collateral benefits of increased efficiency of manufacture and maintenance. The invention also provides the capability to achieve true half stroke design in both the sharp and white keys. Additionally, the application discloses a universal composite grand piano action that is capable of being installed into any brand of grand piano.

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Patent Owner(s)

Patent OwnerAddress
WESSELL NICKEL & GROSS INC4111 NORTH FREEWAY BOULEVARD SACRAMENTO CA 95834

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burgett, Kurk Sacramento, US 1 2
Burke, Kevin Haverhill, US 28 229
Clark, Bruce Nottingkam, US 24 353

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