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For the Inventor, By the Inventor

Riverwoods, IL, United States of America

Charles A Rey

USPTO Granted Patents = 13

Average Co-Inventor Count = 2.1

ph-index = 11

Forward Citations = 253(Granted Patents)


Location History:

  • Naperville, IL (US) (1981 - 1992)
  • Riverwoods, IL (US) (1991 - 1994)

Company Filing History:

goldMedal12 out of 15 
 
Intersonics Incorporated
 patents
silverMedal1 out of 21 
 
Houston Advanced Research Center
 patents

Years Active: 1981-1994

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13 patents (USPTO):Explore Patents
1. 5317642 - Loudspeakers having torque drive radiators (1994-05-31),
2. 5313127 - Moving magnet motor (1994-05-17),
3. 5257676 - Method and apparatus for stabilizing levitated objects (1993-11-02),
4. 5150272 - Stabilized electromagnetic levitator and method (1992-09-22),
5. 5140641 - Servo valve loudspeaker (1992-08-18),
6. 5096017 - Aero-acoustic levitation device and method (1992-03-17),
7. 5036944 - Method and apparatus for acoustic levitation (1991-08-06),
8. 5011295 - Method and apparatus to simultaneously measure emissivities and (1991-04-30),
9. 4841495 - Horn loaded transducer for acoustic levitation (1989-06-20),
10. 4757227 - Transducer for producing sound of very high intensity (1988-07-12),
11. 4564727 - Subwoofer speaker system (1986-01-14),
12. 4531025 - Loudspeaker with commutated coil drive (1985-07-23),
13. 4284403 - Acoustic levitation and methods for manipulating levitated objects (1981-08-18),

Title: The Innovative Mind of Charles A. Rey

Introduction

Charles A. Rey, an inventive force based in Riverwoods, IL, has made significant contributions to the field of audio technology and motor design. With 13 patents to his name, Rey's work exemplifies ingenuity and a commitment to advancing the functionality and efficiency of sound systems and motors.

Latest Patents

Among Rey's latest innovations are two noteworthy patents:

1. **Loudspeakers Having Torque Drive Radiators** - This innovative loudspeaker design features a rigid sound radiator with a free edge, coupled with an electromagnetic drive. The drive unit is strategically mounted on an opposed hub edge to generate torque on the radiator, enhancing sound quality and performance. The design allows for either a coil or a permanent magnet to be positioned directly on the hub edge, which has a smaller radius than the radiator, optimizing the speaker's output.

2. **Moving Magnet Motor** - In this design, the motor incorporates a permanent magnet rotor equipped with opposing magnetic poles, enabling smooth rotation around a central axis. Surrounding the rotor is a stator that contains conductors arranged parallel to the rotor axis, providing a uniform current sheet. This setup ensures a consistent force per unit current acting on the rotor, resulting in improved motor performance.

Career Highlights

Throughout his career, Rey has collaborated with notable companies such as Intersonics Incorporated and the Houston Advanced Research Center. These experiences have provided him with a platform to channel his innovative ideas into practical applications that address industry needs.

Collaborations

Rey has worked alongside talented professionals, including Thomas J. Danley and Dennis R. Merkley. Their contributions and collaborative efforts have undoubtedly enriched the development of Rey’s innovative projects.

Conclusion

Charles A. Rey stands out as a prolific inventor in the fields of loudspeaker technology and motor design. His passion for innovation is evident in his patents, which reflect a blend of creativity and engineering expertise. With ongoing developments and a firm foundation of collaboration, Rey's work continues to influence advancements in audio and motor technologies.

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