James Thomas Dunn

Title: James Thomas Dunn: Inventor Extraordinaire from Winnipeg, CA

Introduction:

Meet James Thomas Dunn, a brilliant inventor hailing from Winnipeg, Canada. With an impressive repertoire of 22 patents, Dunn has made significant contributions to the field of agricultural machinery. His latest patents, the Dual Sickle Knife Drive with Variable Phase Angle and the Crop Machine with an Electronically Controlled Hydraulic Cylinder Flotation System, highlight his innovative approach to improving farming equipment.

Latest Patents:

Dunn's recent inventions demonstrate his penchant for enhancing the efficiency and performance of agricultural machinery. The Dual Sickle Knife Drive with Variable Phase Angle is a cutting system mounted on a header, designed to minimize vibration during non-cutting periods by driving two sickle bars at a first phase angle difference of approximately 180 degrees. During the cutting action, the phase angle difference is adjusted to approximately 90 degrees to reduce variations in loading applied to the drive system.

In the Crop Machine with an Electronically Controlled Hydraulic Cylinder Flotation System, Dunn introduces an electronic control system that dynamically adjusts the hydraulic float cylinders supporting the header. By utilizing a variable control signal and a PPRR valve arrangement, the system maintains a preset float pressure, ensuring an optimal lifting force is applied to the header. The control system also allows for the temporary adjustment of lifting force based on sensor signals, offering a versatile and responsive hydraulic float cylinder.

Career Highlights:

James Thomas Dunn's career has been marked by his innovative spirit and commitment to advancing the agricultural industry. Working at MacDon Industries Ltd., a prominent farm machinery manufacturer, Dunn has been instrumental in developing cutting-edge technologies that enhance productivity and efficiency in the field. His inventions, including the ones mentioned above, have revolutionized the farming sector, earning him recognition and admiration from peers.

Collaborations:

Throughout his career, Dunn has had the opportunity to collaborate with notable inventors and industry experts. Two of his noteworthy coworkers are Bruce Robert Shearer and Graham Michael Leverick. These collaborations have facilitated the exchange of ideas and expertise, leading to the development of groundbreaking inventions. Through teamwork and shared dedication, Dunn and his fellow inventors have contributed to the advancement of agricultural machinery.

Conclusion:

James Thomas Dunn, with his extensive knowledge and expertise, has significantly impacted the agricultural machinery sector with his inventive prowess. His latest patents, the Dual Sickle Knife Drive with Variable Phase Angle and the Crop Machine with an Electronically Controlled Hydraulic Cylinder Flotation System, stand as testament to his ability to innovate and improve existing technologies. As Dunn continues to shape the future of farming equipment, his contributions will undoubtedly inspire further advancements in the agricultural industry.