David A Johnson

Title: David A Johnson: Innovator in Archery and Ultrasonic Detection

Introduction

David A Johnson is a notable inventor based in Littleton, Colorado. He holds two patents that showcase his innovative contributions to both archery practice and ultrasonic detection technologies. His work reflects a commitment to enhancing user experience and safety in various applications.

Latest Patents

One of Johnson's latest patents is a "Method and apparatus enabling archery practice." This invention features an archery practice device that projects a moving hunt scene on a screen. The device utilizes a continuous plane of infrared (IR) light to detect an arrow carrying a reflector as it penetrates this light plane. Upon detection, the moving scene is frozen on the screen, and a hit zone image is projected to indicate the arrow's impact point. This innovative approach allows archers to practice without the risk of arrows penetrating the screen.

Another significant patent is the "Method and apparatus for ultrasonic detection of air bubbles." This invention focuses on detecting inclusions, such as air bubbles in blood flow, by transmitting a signal through the fluid. The system automatically adjusts the amplitude of the transmitted signal to maintain a constant average amplitude of the detected signal. This technology is crucial for monitoring patient safety by estimating the total amount of air infused into a patient over time.

Career Highlights

Throughout his career, David A Johnson has worked with reputable companies, including Cobe Laboratories, Inc. and Dart International, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions in his fields of interest.

Collaborations

Johnson has collaborated with notable individuals such as Douglas P Miller and Keith J Manica. These partnerships have likely enriched his work and contributed to the success of his inventions.

Conclusion

David A Johnson's contributions to the fields of archery and ultrasonic detection demonstrate his innovative spirit and dedication to improving technology. His patents reflect a blend of creativity and practicality, making significant impacts in their respective areas.