John B Harrell

US Patent:

20130174709, Jul 11, 2013

Filed:

Aug 3, 2012

Appl. No.:

13/566722

Inventors:

Mark DeLong - Lemon Grove CA, US
John Harrell - Santee CA, US

International Classification:

G10D 1/08
G10D 1/00

US Classification:

84267, 2989622

Abstract:

Methods and apparatus for providing a high performance stringed instrument. In one embodiment, the stringed instrument comprises an electric guitar constructed entirely of sheet metal, with the body and neck permanently joined together to produce a one piece (unitary) style guitar construction. This method of construction results in improved overall consistency of the product. In particular, the construction utilizes a substantially homogenous material throughout the guitar and further includes a stronger, stiffer and straighter neck that allows for a more consistent sound than is possible using traditional manufacturing materials such as wood. Such a construction also offers improved sustain of string vibration, an attribute that is highly desirable to guitar players. The incorporation of a unique supporting structure into the headstock contributes to a unique warm timbre when played that has heretofore been unachievable in combination with improved sustain characteristics.

US Patent:

47587920, Jul 19, 1988

Filed:

Sep 13, 1985

Appl. No.:

6/776155

Inventors:

James J. Polonis - San Antonio TX
John P. Harrell - San Antonio TX
Melvin J. Johnson - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

G01R 2912
G01R 1900
G01N 3102

US Classification:

324552

Abstract:

A method is provided for utilizing a nonintrusive, noncontacting electric field sensing device to detect faults in high voltage transmission line insulators. The electric field surrounding an unfaulted insulator is mapped using a spherical dipole to obtain a characteristic reference curve. The field of a suspect insulator is then mapped to obtain a test curve which is compared with the reference curve to determine the existence of and location of a fault.

US Patent:

47317442, Mar 15, 1988

Filed:

Jul 16, 1985

Appl. No.:

6/755489

Inventors:

John P. Harrell - San Antonio TX
Douglas L. Michalsky - San Antonio TX

International Classification:

G08C 2100
G01B 1100

US Classification:

364560

Abstract:

A position sensor for a moving member of a mechanical device is disclosed. The sensor includes an optical sensing means such as solid-state image sensor and illuminating means such as a plurality of light-emitting diodes, stationarily mounted to face scribing marks provided on the moving member. The microprocessor controlled image sensor generates a digital signal representative of the scribing marks on the moving member. A cable is provided between the position sensor and a remote digital computer which applies control and command signals to the sensor and receives the digital signal representation of the moving member scribing marks. The image is presented on a CRT screen allowing a human being a remote visual image of the position of the moving member. The remote digital computer also processes the received digital signal from each of the moving members and generates an alarm if the movement is greater than a predetermined amount.

Address:

510 Bonair Dr, San Antonio, TX 78222

Phone:

2103332456

VIN:

3D7KR28A47G792432

Make:

DODGE

Model:

RAM PICKUP 2500

Year:

2007