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:
Feb. 22, 2011
Filed:
Jan. 04, 2008
Applicant:
Joseph P Szczap, Naperville, IL (US);
Inventor:
Joseph P Szczap, Naperville, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A key leveler and method of use for leveling keys on a musical instrument keyboard. A horizontal guide rail holding a gauge holder and height indicator is leveled over the keyboard. The gauge holder includes a downward-extending push rod for contacting each key. An index cylinder and spring adjustment screw adjust the spring force applied to the push rod. The index cylinder is selectively positionable in park, rest, and depressed positions for each key. The system also includes an electronic height indicator, a laptop computer, and a software program for simultaneously calculating the optimal shimming for each key.