Alan Long Thien Du

Title: Alan Long Thien Du: Innovator in Check Valve Technology

Introduction

Alan Long Thien Du is a notable inventor based in Covina, CA (US). He has made significant contributions to the field of valve technology, holding a total of 3 patents. His innovative designs focus on enhancing the functionality and reliability of check valves.

Latest Patents

One of his latest patents is for a spring stop for a clapper valve. This invention includes a check seat that defines a flow path and a clapper assembly designed to obstruct this flow path. The clapper assembly features a clapper and a seal retainer that is detachably mounted to the clapper. Additionally, it incorporates a cam arm connected to the check seat, which includes a stopper, and a torsion spring that applies a biasing force to the cam arm against the direction of fluid flow. This design ensures that when the seal retainer is dismounted from the clapper, the stopper can contact the check seat to prevent rotation of the cam arm.

Another significant patent by Du is for a clapper with an upstream cam-arm and roller arrangement. This check valve design also includes a check seat defining a flow path and a clapper assembly that is hingedly connected to the check seat. The assembly features a first extension that extends upstream and has a roller, along with a cam arm that is rotatable relative to the clapper assembly. The torsion spring in this design applies a biasing force to the cam arm in the upstream direction, allowing the clapper assembly to effectively obstruct the flow path.

Career Highlights

Alan Long Thien Du is currently employed at Acorn Engineering Company, where he continues to innovate in the field of valve technology. His work has contributed to advancements in the efficiency and reliability of check valves, making significant impacts in various applications.

Collaborations

Throughout his career, Du has collaborated with talented individuals such as Luis Fernando Prieto and Pui Yuen Ng. These collaborations have fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Alan Long Thien Du is a distinguished inventor whose work in check valve technology has led to multiple patents and significant advancements in the field. His contributions continue to influence the industry, showcasing the importance of innovation in engineering.