The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2010
Filed:
Jun. 14, 2007
Bruce Clark, Nottingkam, NH (US);
Kevin Burke, Haverhill, MA (US);
Kurk Burgett, Sacramento, CA (US);
Bruce Clark, Nottingkam, NH (US);
Kevin Burke, Haverhill, MA (US);
Kurk Burgett, Sacramento, CA (US);
Abstract
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.