Canton, OH, United States of America

Derald H Kraft

This inventor holds 20 USPTO granted patents, primarily in Belt Tensioner Design. Top assignees: Aspro, Incorporated, Dyneer Corporation. Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Derald H Kraft. Retrieved from https://idiyas.com/inventor/derald-h-kraft

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 = 1.2

ph-index = 11

Forward Citations = 305(Granted Patents)


Company Filing History:


Years Active: 1976-1985

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Areas of Expertise:
Belt Tensioner
Sheet Metal Pulleys
Hydraulic Tensioner
Mechanical Tensioner
Sintered Hub
V-Grooved Design
Clutch Housing
Drive Belt Arrangement
Pulley Construction
Roller Spinning
Multi V-Grooved
Thick Hub Wall
20 patents (USPTO):Explore Patents

Title: Derald H. Kraft: A Pioneer in Engineering Innovations

Introduction:

Derald H. Kraft is an accomplished inventor based in Canton, Ohio, known for his significant contributions to engineering and manufacturing. With an impressive portfolio of 20 patents, Kraft has developed innovative solutions that enhance the functionality and efficiency of various mechanical systems.

Latest Patents:

Kraft's latest patents demonstrate his expertise in mechanical design and manufacturing processes. One such patent is for the Manufacture of Poly-V Sheet Metal Pulleys. This invention outlines a method of creating a sheet steel poly-V-grooved pulley with a unique cross-sectional contour. The manufacturing process includes multiple cold working stages, transitioning from a cup-shaped blank to the final pulley product. This process not only enhances the physical properties of the pulley but also ensures a consistent torque transmitting strength throughout its design.

Another noteworthy patent is the Arrangement for Tensioning the Drive Belt for Vehicle Accessories. This invention features a hydraulic tensioning mechanism that maintains optimal belt tension without reliance on springs. The system dynamically adjusts the tension as needed, ensuring reliable performance for vehicle alternators. By utilizing hydraulic fluid from the vehicle's power steering system, Kraft’s design introduces an innovative solution that simplifies operating mechanisms across various vehicle types.

Career Highlights:

Throughout his career, Derald H. Kraft has been associated with organizations such as Dyneer Corporation and Aspro, Incorporated, where he played pivotal roles in engineering and product development. His experience in these companies has allowed him to cultivate a deep understanding of mechanical design principles and manufacturing techniques.

Collaborations:

Kraft has worked alongside notable colleagues, including Daniel M. Rinaldo and Richard C. St. John. Their collaborations have likely contributed to the innovative spirit and technical rigor present in Kraft's patents and inventions.

Conclusion:

Derald H. Kraft exemplifies the spirit of innovation through his extensive work and numerous patents. His contributions to mechanical systems and manufacturing techniques not only demonstrate his inventiveness but also showcase the impact of engineering innovations on modern technology. As an inventor, Kraft continues to inspire future generations in the field of engineering and design.

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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