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:
Nov. 28, 2000
Filed:
Apr. 19, 1999
Applicant:
Inventor:
Alana J Yorba, Carmichael, CA (US);
Assignee:
Burgett, Inc., Sacramento, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10F / ; G10C / ;
U.S. Cl.
CPC ...
84 20 ; 84439 ; 84440 ;
Abstract
A method for eliminating or reducing noise created by the action mechanisms of piano keys during its return stroke after striking a string, by regulating the amount of time for the mechanism to return to rest. The method comprises the steps of sequentially initiating a pair of braking pulses by the actuator solenoid to slow the action mechanism during its return stroke. Each braking pulse is of a specified duration and magnitude such that the mechanism's return time is maximized while eliminating the possibility of double hits on the string.