Snelland, United Kingdom

Henry J Levington

This inventor holds 5 USPTO granted patents. Top assignees: Clayton Dewandre Co., Ltd., Wabco Automotive UK Limited. Active years: 1976-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Henry J Levington. Retrieved from https://idiyas.com/inventor/henry-j-levington

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 3

Forward Citations = 49(Granted Patents)


Location History:

  • Snelland, EN (1976)
  • Lincoln, GB (1979)
  • Snelland, GB (1978 - 1994)

Company Filing History:


Years Active: 1976-1994

Loading Chart...
5 patents (USPTO):Explore Patents

Title: The Innovations of Henry J Levington

Introduction

Henry J Levington is a notable inventor based in Snelland, GB, recognized for his contributions to the field of hydraulic systems. With a total of five patents to his name, Levington has made significant advancements in the design and functionality of hydraulic braking systems.

Latest Patents

Levington's latest patents include innovations such as reciprocating vacuum pumps and hydraulic braking systems for tractor-trailer combinations. One of his key inventions is a hydraulic braking system specifically designed for agricultural tractor-trailer combinations. This system utilizes hydraulic power from a pump on the tractor and features a pressure control valve that connects the main hydraulic supply with a chamber. This chamber communicates with a restricted bore and an outlet for the by-passed braking fluid. A pilot valve, which can be responsive to braking pressure or manually operated, allows fluid to be admitted to the trailer brakes while operating a check valve. This check valve effectively closes the connection between the chamber and a return line for fluid not required for braking, ensuring a clean switching action and eliminating any tendency to meter at intermediate pressures. Both constant flow and constant pressure systems are described in his patents, showcasing his innovative approach to hydraulic technology.

Career Highlights

Throughout his career, Levington has worked with reputable companies such as Clayton Dewandre Company Limited and Clayton Dewandre & Company Limited. His experience in these organizations has contributed to his expertise in hydraulic systems and has allowed him to develop his patented technologies.

Collaborations

Levington has collaborated with notable individuals in his field, including James G Knowles and Michael R Hudston. These partnerships have likely fostered an environment of innovation and creativity, leading to the development of his significant inventions.

Conclusion

Henry J Levington's contributions to hydraulic systems and his innovative patents have made a lasting impact in the field. His work continues to influence the design and functionality of hydraulic braking systems, showcasing the importance of innovation in engineering.

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]
Loading…