Pasadena, MD, United States of America

Daniel H Siegert

This inventor holds 1 USPTO granted patent. Top assignee: Koppers Company, Inc.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Daniel H Siegert. Retrieved from https://idiyas.com/inventor/daniel-h-siegert

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 = 2.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Daniel H. Siegert

Introduction

Daniel H. Siegert is an accomplished inventor based in Pasadena, MD (US). He has made significant contributions to the field of engineering, particularly in the development of mechanical components that enhance the efficiency of rotating equipment. His innovative spirit is exemplified by his patent for a self-lubricating gear-type spindle coupling.

Latest Patents

Siegert holds a patent for a self-lubricating gear-type spindle coupling. This invention is designed for use with rotating equipment, such as rolling mills, where lubrication is critical. The self-lubricating coupling features reservoirs connected by first valve means to plenums formed by the retraction of spring guides in the guide channels when the roll shaft is engaged at roll insertion. A partial vacuum is created in the plenums, causing the first valve means to open and allowing the plenums to fill with lubricant from a reservoir contained in the spindle shaft. When the roll shaft is removed, the compressive force is released from the spring assemblies, causing the guides to move forward in the channels. This action opens second valves, permitting the lubricant to pass through the spring housings and onto the sleeves and hubs of the coupling to lubricate the gear teeth.

Career Highlights

Siegert is currently employed at Koppers Company, Inc., where he continues to innovate and develop new technologies. His work focuses on improving mechanical systems and enhancing their performance through innovative designs.

Collaborations

One of his notable collaborators is Steven Banki. Together, they have worked on various projects that aim to advance the field of mechanical engineering.

Conclusion

Daniel H. Siegert's contributions to the field of engineering through his innovative inventions, particularly the self-lubricating gear-type spindle coupling, highlight his expertise and commitment to improving mechanical systems. His work at Koppers Company, Inc. continues to influence the industry positively.

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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