Company Filing History:
3 out of 614 
1 out of 2 
1 out of 32 Years Active: 1978-1991
Title: The Innovative Contributions of Allen F Pearson
Introduction
Allen F Pearson is a notable inventor based in Muskegon, MI (US). He has made significant contributions to the field of engineering, particularly in the development of solenoid valves. With a total of five patents to his name, Pearson's work showcases his dedication to innovation and problem-solving.
Latest Patents
One of Pearson's latest patents is the electromagnetic solenoid valve with a variable force motor. This solenoid valve features a valve body with a central bore from which fluid passages extend radially. A valve spool is axially slidably captured within the valve body bore, controlling the passage of fluid among the valve body passages. The electromagnetic variable force motor is mounted on the valve body and includes a ferromagnetic housing with a pole piece coaxial with the valve spool, surrounded by an electrical coil. An armature, comprising a ball of ferromagnetic construction, is positioned coaxially with the pole piece in abutting engagement with the valve spool. A coil spring engages the ball-armature, urging it axially away from the pole piece. The magnetic attraction between the ball-armature and the pole piece is designed to be substantially identical to the spring rate, both being a linear function of ball-armature displacement.
Career Highlights
Throughout his career, Allen F Pearson has worked with several companies, including Spx Corporation and Anthes Imperial Limited. His experience in these organizations has contributed to his expertise in the field of engineering and invention.
Collaborations
Pearson has collaborated with notable coworkers such as John L Hendrixon and David J Domanchuk. Their combined efforts have likely fostered an environment of innovation and creativity in their projects.
Conclusion
Allen F Pearson's contributions to the field of engineering, particularly through his patents and collaborations, highlight his role as an influential inventor. His work continues to impact the industry and inspire future innovations.