Westlake, OH, United States of America

David C Oas

This inventor holds 1 USPTO granted patent. Top assignee: Van Dorn Company. Active years: 1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David C Oas. Retrieved from https://idiyas.com/inventor/david-c-oas-pcj7ss2m

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 = 1.0

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1992

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of David C. Oas

Introduction

David C. Oas is a notable inventor based in Westlake, OH (US). He has made significant contributions to the field of injection molding through his innovative designs. His work is characterized by a focus on improving the efficiency and functionality of machinery used in manufacturing processes.

Latest Patents

David C. Oas holds a patent for a "Driven ring-type non-return valve for injection molding." This invention features a non-return valve designed for injection molding machines. The valve includes a conventional tip member that is threaded into the end of a plasticating screw, carrying an annular valve seat member. An annular check ring receives the tip member, with tang protuberances extending axially from the check ring to engage the retainer end of the tip member. This design minimizes valve wear while allowing the check ring to move axially for valve closure through pressure differentials. Additionally, a ramp surface on the tang protuberances engages a drive surface on the retainer end of the tip member during reverse rotation, ensuring positive closure of the valve prior to injection. David C. Oas has 1 patent to his name.

Career Highlights

David C. Oas is currently associated with Van Dorn Company, where he applies his expertise in injection molding technology. His role at the company allows him to further develop and refine his innovative ideas, contributing to advancements in manufacturing processes.

Conclusion

David C. Oas exemplifies the spirit of innovation in the field of injection molding. His contributions, particularly through his patented designs, have the potential to enhance the efficiency of manufacturing processes. His work 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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