This inventor holds 4 USPTO granted patents. Top assignee: Caterpillar Tractor Co.. Active years: 1976-1979.
Company Filing History:
Years Active: 1976-1979
Title: Gerald D Hall: Innovator in Hydraulic Motor Technology
Introduction
Gerald D Hall is a notable inventor based in Joliet, IL (US), recognized for his contributions to hydraulic motor technology. With a total of 4 patents to his name, Hall has made significant advancements in the field, particularly in variable displacement motors.
Latest Patents
One of Hall's latest patents is the "Two Position Variable Displacement Motor." This invention features an axially oriented variable displacement pistoned device that is adaptable for use as a motor. It includes a pivoted swash plate that can be angularly positioned to establish the device's displacement. The design incorporates externally mounted low-pressure hydraulic actuators that are operably connected to the swash plate for its operation. Additionally, adjustable stops are provided in the device body to limit the travel of the swash plate under the urging of the hydraulic actuators.
Another significant patent is the "Load Check with Mechanical Venting Means." This invention describes a hydraulic motor and control system that includes a pump for delivering fluid to a control valve. The control valve has a Float position that connects one end of the motor to a sump, a First position for applying fluid from the pump to power the motor in one direction, and a Second position that allows the motor to move in the opposite direction. A conduit connects the control valve to the sump, and a check valve is included in the flow path to allow flow towards the motor while normally blocking reverse flow.
Career Highlights
Gerald D Hall has built a successful career at Caterpillar Tractor Co., where he has been instrumental in developing innovative hydraulic solutions. His work has contributed to the advancement of machinery and equipment used in various industries.
Collaborations
Throughout his career, Hall has collaborated with notable colleagues, including Allyn J Hein and John R Cryder. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Gerald D Hall's contributions to hydraulic motor technology through his patents and work at Caterpillar Tractor Co. highlight his innovative spirit and dedication to engineering excellence. His inventions continue to influence the industry and pave the way for future advancements.