Patent · US Expired

Tonal adjusting device

US6521820B1 · kind B1 · utility

6Cited by
11References
20Claims
0Family size

Inventor

Key dates

Filing dateJun 1, 2001
Grant dateFeb 18, 2003
Priority date
Expiry dateJun 23, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG10D3/053
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A tonal adjusting device for selectively changing the pitch of one or more strings of a guitar. The tonal adjusting device includes a lever assembly with upper and lower arms that are designed for being positioned around the neck of a stringed instrument. The upper arm has dampening members for selectively engaging the strings when the upper arm engages the face of the neck of the instrument.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.