Other

Bell Helicopter Textron Inc.

John Michael Kebrle

Paul Branson Sherrill

Dudley E Smith

Charles L Hollimon

Jimmy Charles Narramore

James R Andrews

Bryce Docker

John T Brieger

Justin Daw

Jim Hurdle

Sidney Xue

Jim C Narramore

Disclosed is a torsion based tremolo apparatus that includes a moving plate rotatably coupled to a mounting plate. A torsion device imparts torsional force to the moving plate relative to the mounting plate around an axis of rotation. The mounting plate is used to attach the tremolo apparatus to a guitar or other string musical instrument. Adjustable bridge clamps and tuning plates coupled to the moving plate may be used to set the tension on the instrument strings as desired. Rotation of the moving plate relative to the mounting plate alters the tension on the instrument strings.

Torsional based tremolo system with a moving bridge

Disclosed is a locking nut assembly that includes a baseplate mounted on the head of a musical instrument, such as a guitar. The baseplate includes channels configured to receive strings of the musical instrument and at least one locking plate to secure the strings in the channels. A bracket couples a truss rod positioned in a neck of the musical instrument to the baseplate.

Musical instrument locking nut assembly that attaches to a truss rod or a truss rod extension

Disclosed is a torsion based tremolo apparatus that uses a cylinder assembly to rotate part of the tremolo apparatus relative to a baseplate. The baseplate is used to mount the tremolo apparatus to a musical instrument, such as a guitar. A bridge string support assembly is coupled to the baseplate and, combined with a string holder, supports a string of the musical instrument. A torsion device is positioned to impart torsional force on the cylinder assembly relative to the baseplate. The string holder is coupled to the cylinder assembly and rotates when the cylinder assembly is rotated.

Torsional based tremolo system with a stationary bridge

A ducted fan for a helicopter includes a transverse duct and a counter-torque device supported within the duct. The counter-torque device includes a rotor rotatably mounted within the duct and a stator fixedly mounted within the duct downstream from the rotor. The rotor includes a rotor hub having a rotor axis, and rotor blades extending from the hub. The Rotor blades have a modulated angular distribution about the rotor axis. The stator includes a stator hub, and a plurality of stator vanes distributed around the stator hub. The stator vanes are angularly modulated around the stator hub.

Counter-torque device for a helicopter

Growing community of inventors

Dallas, TX, United States of America

John Michael Kebrle