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:
Oct. 25, 2011
Filed:
Jan. 13, 2010
David H. Jackson, Dahlonega, GA (US);
David H. Jackson, Dahlonega, GA (US);
Other;
Abstract
A pitch adjustment device for selectively adjusting the pitch of the string(s) of a stringed musical instrument. Each string of the instrument is attached to a respective pitch adjustment device. Each pitch adjustment device includes a pivotable string puller wherein pivoting of the string puller adjusts the pitch on the string. A pulley is rotatably mounted to the string puller such that movement of the pulley causes the string puller to pivot. A cable is wrapped around the pulley and has a first side extending from one side of the pulley and a second side extending form the other side of the pulley. A plurality of actuators are operably coupled to the first and second sides of the cable. The actuators move the cable, which moves the pulley, which in turn pivots the string puller, thereby adjusting the pitch of the string.