John L Evans

Title: John L Evans: Innovator in Gyro Technology

Introduction

John L Evans is a notable inventor based in Oakland, NJ (US), recognized for his contributions to gyro technology. With a total of 4 patents, Evans has made significant advancements in the field, particularly in missile guidance systems.

Latest Patents

One of his latest patents is the Cannon Launched Platform, which features a gyro seeker designed for use in cannon-launched missiles. This gyro seeker is housed in the nose section of the missile and supports an optical assembly, a detector, a gyro assembly, and a cryostat for cooling the detector. The design includes means on the outer gimbal of the platform to withstand the extreme acceleration induced by cannon launching. Additionally, the platform is torqueable along two axes, utilizing a plurality of pole pieces located around its base. A platform caging device is also included to secure the platform during transport and to provide spin-up gas to the gyro element and cooling gas to the cryostat.

Another significant patent is the Wide Angle Torquing Scheme, which describes a torquer system for a gyro device featuring a spherically shaped rotor divided into upper and lower hemispheres. The rotor is mounted on a gas bearing over a spherically shaped stator and supports an optical assembly aligned parallel to the spin axis of the gyro. The torquer is strategically positioned beneath the lower hemisphere of the rotor to maximize angular freedom. It comprises four pole pieces separated by 90 degrees, with each torquer containing coils for bias and control. The current flow through these windings generates magnetic flux lines that attract the rotor towards the pole face, with the force of attraction indicating the current passing through the torquer windings.

Career Highlights

Evans has built a distinguished career at The Singer Company, where he has been able to apply his innovative ideas and technical expertise. His work has contributed to advancements in missile technology and gyro systems, showcasing his ability to merge theoretical knowledge with practical applications.

Collaborations

Throughout his career, Evans has collaborated with notable colleagues, including Bart J Zoltan and Walter J Krupick. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

John L Evans stands out as a prominent inventor in the field of gyro technology, with a focus on enhancing missile guidance systems. His