This inventor holds 1 USPTO granted patent. Top assignee: Danfoss A/s. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Long Sun and His Valve-Sealing Invention.
Introduction
Long Sun is an inventor associated with Wuqing, China, and Danfoss A/S. His patent work includes a valve-sealing design intended to improve safety and make maintenance easier.
Latest Patents
The provided information lists one patent for Long Sun: “Valve and Sealing Structure Thereof.” The invention describes a stuffing box fitted into a valve cover, with an external thread and a groove for a sealing ring. Its dimensions are arranged so that the threaded connection’s axial length, L1, exceeds the specified distance, L2, between features in the valve cover and the sealing groove.
According to the patent description, this arrangement helps reduce the risk of the stuffing box being ejected by residual high pressure in the valve cover, which could injure someone. It is also designed to make the stuffing box easier to remove from a shaft. The patent further discloses a valve incorporating this sealing structure.
Career Highlights
Sun’s listed patent connects his inventive work with valve design and sealing technology at Danfoss A/S. The available information identifies one patent and does not provide further details about his role or career history.
Collaborations
Yanning Shen and Shuwei Liu are identified as Sun’s coworkers. The provided information does not specify their roles in developing the patented invention.
Conclusion
Long Sun’s listed invention focuses on a valve-sealing structure designed to address pressure-related ejection risks while supporting easier maintenance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile