Goodfield, IL, United States of America

Samuel G Dunlap, Jr

This inventor holds 1 USPTO granted patent. Top assignee: Caterpillar Tractor Co.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Samuel G Dunlap, Jr. Retrieved from https://idiyas.com/inventor/samuel-g-dunlap-jr

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Samuel G. Dunlap, Jr.: Innovator in Hydraulic Systems

Introduction

Samuel G. Dunlap, Jr. is a notable inventor based in Goodfield, IL (US). He has made significant contributions to the field of hydraulic systems, particularly with his innovative designs that enhance the functionality of hydraulic motors. His work has been recognized within the industry, showcasing his expertise and creativity.

Latest Patents

Dunlap holds a patent for a "Load check with mechanical venting means." This invention involves a hydraulic motor and control system that includes a pump for delivering fluid to a control valve. The control valve features a Float position that connects the motor to a sump, a First position for applying fluid to power the motor in one direction, and a Second position for reversing the motor's direction. A conduit connects the control valve to the sump, and a check valve is included in the flow path to ensure proper fluid movement. This innovative design allows for efficient operation of hydraulic systems.

Career Highlights

Dunlap has worked at Caterpillar Tractor Co., a leading company in the manufacturing of construction and mining equipment. His role at Caterpillar has allowed him to apply his inventive skills in a practical setting, contributing to the development of advanced hydraulic technologies.

Collaborations

Throughout his career, Dunlap has collaborated with notable colleagues such as John R. Cryder and Gerald D. Hall. These partnerships have fostered an environment of innovation and creativity, leading to advancements in hydraulic systems.

Conclusion

Samuel G. Dunlap, Jr. is a distinguished inventor whose work in hydraulic systems has made a lasting impact on the industry. His patent for a load check with mechanical venting means exemplifies his innovative spirit and technical expertise. His contributions continue to influence the field of hydraulic technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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