John R Mahrenholz

Title: Innovations of John R Mahrenholz

Introduction

John R Mahrenholz is a notable inventor based in Peosta, Iowa, with a remarkable portfolio of 17 patents. His work primarily focuses on advancements in hydraulic systems and self-propelled work vehicles. Mahrenholz's innovative contributions have significantly impacted the efficiency and functionality of machinery in various applications.

Latest Patents

One of Mahrenholz's latest patents is the "Inertial Load Dampening Hydraulic System with Persistent Oil Conditioning." This hydraulic system features a pump that supplies pressurized hydraulic fluid through a first supply line to a closed center control valve. The fluid is then directed through work lines to a hydraulic motor. Exhausted hydraulic fluid from the motor is routed back through the control valve to an exhaust line equipped with a back pressure check valve. To maintain a fully charged exhaust line, a second supply line connects the first supply line to the exhaust line, incorporating a pressure reducing valve for optimal performance.

Another significant patent is the "System and Method for Selective Derating of Self-Propelled Work Vehicle Parameters Based on Operating Modes." This method controls a self-propelled work vehicle with a work attachment and ground engaging units driven by separate drivetrains. It allows for selective derating of drivetrain speed commands when transitioning between operating modes, enhancing the vehicle's adaptability and efficiency.

Career Highlights

Mahrenholz's career is marked by his association with Deere & Company, where he has made substantial contributions to the field of machinery and hydraulic systems. His innovative designs and patents have played a crucial role in improving the performance and reliability of equipment used in various industries.

Collaborations

Throughout his career, Mahrenholz has collaborated with talented individuals such as Brett S Graham and Nicholas Rokusek. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

John R Mahrenholz's contributions to the field of hydraulic systems and self-propelled work vehicles exemplify the spirit of innovation. His patents reflect a commitment to enhancing machinery performance and efficiency. Mahrenholz continues to be a significant figure in the world of inventions, driving advancements that benefit various industries.