Springfield, VT, United States of America

James Halvorsen

This inventor holds 2 USPTO granted patents. Top assignee: Ex-Cell-O Gmbh. Active years: 1987-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James Halvorsen. Retrieved from https://idiyas.com/inventor/james-halvorsen

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 1987-1988

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2 patents (USPTO):Explore Patents

Title: Innovations by James Halvorsen

Introduction

James Halvorsen is an accomplished inventor based in Springfield, Vermont. He has made significant contributions to the field of engineering, particularly in the area of machining technologies. With a total of two patents to his name, Halvorsen has developed innovative methods that enhance the efficiency and precision of machining processes.

Latest Patents

Halvorsen's latest patents include a combined bore seat face grinding, EDM, and lapping method for finishing. This invention features a combined grinding and EDM apparatus equipped with an indexable rotary turret. The turret holds four work heads that secure nozzle body blanks in spaced parallelism. The apparatus utilizes either three or four compound cross and longitudinal slide assemblies that carry grinding tools, lapping tools, or non-contact machining tools. These tools work on the blanks to machine the face and form a valve guide bore and a valve seat shaped as a frustrum of a cone, ensuring that the axis is concentric with the bore. The valve seat cone surface has a small end diameter to large end diameter ratio in the order of 1-50.

Another notable patent is the method of combining grinding and EDM operation for finishing fuel. Similar to his previous invention, this apparatus also features an indexable rotary turret with work heads that locate nozzle body blanks. The compound cross and longitudinal slide assemblies carry either grinding tools or non-contact machining tools, which work on the blanks to form a valve guide bore and a valve seat shaped as a frustrum of a cone. The design ensures precision and efficiency in the machining process.

Career Highlights

Halvorsen is currently employed at Ex-Cell-O GmbH, where he continues to innovate and develop new technologies. His work has significantly impacted the machining industry, providing solutions that enhance productivity and accuracy.

Collaborations

Throughout his career, Halvorsen has collaborated with notable colleagues, including Victor F. Dzewaltowski and John M. Check. These partnerships have fostered an environment of innovation and creativity, leading to advancements in machining technologies.

Conclusion

James Halvorsen's contributions to the field of machining through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry, paving the way for future developments in machining processes.

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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