Oswego, IL, United States of America

James William Schaffer

This inventor holds 3 USPTO granted patents. Top assignee: Caterpillar Inc.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James William Schaffer. Retrieved from https://idiyas.com/inventor/james-william-schaffer

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


% Patents Active = 66.7

Average Co-Inventor Count = 2.9

ph-index = 1

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 2002-2026

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3 patents (USPTO):Explore Patents

Title: Innovations by James William Schaffer

Introduction

James William Schaffer is an accomplished inventor based in Oswego, IL (US). He has made significant contributions to the field of construction machinery through his innovative designs. With a total of 3 patents, Schaffer has demonstrated his expertise and commitment to enhancing machinery performance and safety.

Latest Patents

One of Schaffer's latest inventions is the "Axle Seal Shield for Compaction Machine." This shield assembly is designed for use with the axle assembly of a compaction machine. It includes a ground-engaging device with a hub that defines a cavity and an inboard opening. The shield body is mounted within the hub cavity, positioned above the spindle and final drive, and extends over the gap. This arrangement effectively directs debris away from the gap and associated seals, thereby reducing contamination and wear of axle components during operation in debris-laden environments.

Another notable patent is the "Brake Wear Indicator." This invention alerts machine operators or service personnel to excessive wear conditions of friction discs in friction couplings or brakes of construction machinery. In one embodiment, a wear indicating pin element is shifted axially by a brake piston, and the position of the end of the pin element is visible through a window in the brake housing. This provides a visual indication of the wear condition of the friction disc. In a second embodiment, excessive wear is revealed by a signal light activated by a pressure switch responding to the pressure of the fluid delivered to a brake cylinder when the brake piston moves a predetermined distance during brake application.

Career Highlights

James William Schaffer is currently employed at Caterpillar Inc., a leading company in the construction machinery industry. His work focuses on developing innovative solutions that improve the efficiency and reliability of machinery.

Collaborations

Schaffer collaborates with talented individuals in his field, including his coworker Matthew M DeSanto. Together, they contribute to advancements in construction technology.

Conclusion

James William Schaffer is a notable inventor whose work has significantly impacted the construction machinery sector. His innovative patents reflect his dedication to improving machinery performance and safety.

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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