John A Yost

US Patent:

58249257, Oct 20, 1998

Filed:

Dec 8, 1995

Appl. No.:

8/569569

Inventors:

John A. Yost - Cleves OH

International Classification:

G10D 300

US Classification:

84313

Abstract:

A tremolo system for a stringed musical instrument, comprising an arm member rotatably connected to the instrument body; a first fluid member, operatively connected to the arm member, for moving a bridge of the instrument in response to rotation of the arm member so as to change a pitch of a tone generated by the instrument; and a mechanism for rotating the arm member relative to the instrument so that rotation of the arm member in a first direction substantially raises a pitch of a tone generated by the instrument, and rotating the arm member in a second direction substantially lowers the pitch of a tone generated by the instrument.

US Patent:

61004596, Aug 8, 2000

Filed:

Jan 27, 1998

Appl. No.:

9/014021

Inventors:

John A. Yost - Cleves OH

International Classification:

G10D 300

US Classification:

84313

Abstract:

A tremolo system for a stringed musical instrument, comprising a tremolo arm member which extends outwardly from the instrument body and is rotatable about its longitudinal axis; a bridge member which engages with the instrument strings and is capable of pivoting about an axis so as to alter the tension of the instrument strings; and a mechanism for rotating the bridge member about an axis in response to manual rotation of the tremolo arm member, including a cam member which is connected to the tremolo arm member, and a cam follower member which is movable within the instrument body and which is suitably connected to the bridge member.