D Broadus Keele, Jr

Title: Innovations of D Broadus Keele, Jr.

Introduction

D Broadus Keele, Jr. is a notable inventor based in Camarillo, California. He has made significant contributions to the field of audio technology, particularly in the design of loudspeaker horns. With a total of two patents to his name, Keele's work has influenced sound engineering and speaker design.

Latest Patents

Keele's latest patents include the "Defined Coverage Loudspeaker Horn" and a "Loudspeaker Horn." The Defined Coverage Loudspeaker Horn features opposed side walls that direct portions of a sound beam toward a target over different preselected included angles. This design produces an incident beam that is substantially coextensive with the target. The side walls extend downstream at the preselected angles over a distance comparable to the maximum wavelength at which the horn is intended to be used. The Loudspeaker Horn, on the other hand, boasts improved directivity with smoothly flared vertical and horizontal sidewalls. One pair of sidewalls is generated as a surface of revolution, defined by a power series formula, while the contour of the remaining pair is also defined by a power series formula with different constants. The design ensures that the vertical and horizontal sidewalls are substantially congruent at the rectangular or square mouth.

Career Highlights

Throughout his career, Keele has worked with prominent companies in the audio industry. He has been associated with James B. Lansing Sound, Inc. and JBL, Incorporated. His experience in these companies has allowed him to refine his skills and contribute to innovative audio solutions.

Collaborations

(Section skipped due to space constraints.)

Conclusion

D Broadus Keele, Jr. has made remarkable advancements in loudspeaker technology through his innovative patents and career contributions. His work continues to impact the audio industry significantly.