Crab Orchard, WV, United States of America

Shirley Donnelly Riffe

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignees: Long-Airdox Company, Robbins Mining, Inc., The Robbins Company. Active years: 1994-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shirley Donnelly Riffe. Retrieved from https://idiyas.com/inventor/shirley-donnelly-riffe

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 1.0

ph-index = 4

Forward Citations = 43(Granted Patents)


Company Filing History:


Years Active: 1994-2024

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5 patents (USPTO):Explore Patents

Title: **Innovator Spotlight: Shirley Donnelly Riffe**

Introduction

Shirley Donnelly Riffe, an accomplished inventor from Crab Orchard, West Virginia, has made significant contributions to the field of conveyor systems. With a remarkable portfolio of five patents, her innovations serve to enhance the functionality and efficiency of belt conveyors, showcasing her expertise and dedication to engineering advancements.

Latest Patents

Among Shirley's notable inventions is her patent for an "Apparatus to Extend Lift Capacity of Sidewall Belt Conveyor." This innovative device features a belt tension-reducing system that includes a pliable central wheel assembly designed to engage both the upwardly and downwardly moving portions of the conveyor belt. The design utilizes a variable rolling radius that minimizes stress on the belt within vertical shafts by arranging the belt tension-reducing devices in a stacked configuration.

Another significant patent is the "Self-Adjusting Carrying Idler Assembly," which enhances the support for conveyor belts on return paths. This assembly incorporates a fixed frame and a movable frame that tilts to accommodate curves, facilitating a smoother transition of the belt around corners. The design includes various idlers and guide rollers that work together to maintain the belt's lateral stability while allowing for dynamic adjustments in tilt.

Career Highlights

Shirley has worked with notable companies, including Long-Airdox Company and The Robbins Company. Throughout her career, she has applied her innovative thinking to address complex engineering challenges, significantly impacting the field of conveyor technology.

Collaborations

Her collaborations with established companies have allowed Shirley to bring her inventive ideas to life, ensuring that her patents are both practical and applicable within the industry. The partnerships she has fostered demonstrate her ability to work in a team setting while contributing her unique insights and solutions.

Conclusion

Shirley Donnelly Riffe's work stands as a testament to the impact of innovation in industrial engineering. Her contributions, particularly her patents on conveyor systems, highlight her position as a trailblazer in her field. As technology continues to evolve, inventors like Shirley play a crucial role in driving advancements that improve efficiency and performance in various industries.

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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