Doddington, United Kingdom

Frank Cunliffe

This inventor holds 2 USPTO granted patents. Top assignee: Lucas Industries Limited. Active years: 1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Frank Cunliffe. Retrieved from https://idiyas.com/inventor/frank-cunliffe-f7q27fql

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 = 2.0

ph-index = 2

Forward Citations = 9(Granted Patents)


Company Filing History:


Years Active: 1982

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2 patents (USPTO):Explore Patents

Title: Frank Cunliffe: Innovator in Fuel Injection Technology

Introduction

Frank Cunliffe is a notable inventor based in Doddington, GB. He has made significant contributions to the field of fuel injection technology, holding 2 patents that showcase his innovative approach to engineering.

Latest Patents

Cunliffe's latest patents include advancements in liquid fuel injection pumps and fuel injection pumping apparatus. The liquid fuel injection pump is of the rotary distributor type, featuring a pump plunger whose outward movement can be limited by an angularly adjustable stop ring. This design allows for the determination of the maximum amount of fuel supplied by the pump. The stop ring can be moved from a first position to a second position, enabling the pump to supply an excess amount of fuel for starting the engine. A first torsion spring biases the stop ring to the first position, while a second, stronger torsion spring biases it to the second position. Additionally, there are means to remove the force exerted by the second torsion spring when the extra fuel is no longer required, which can be achieved through a fluid pressure operable piston.

The fuel injection pumping apparatus features a housing with a boss portion through which a drive shaft extends. An adjustable member is mounted around the boss portion, and a two-part sprocket is mounted on the shaft. One part of the sprocket has an aperture that can be aligned with an aperture in the adjustable member using a tool. When correctly adjusted, the tool is inserted into the apertures, allowing the driving belt or chain to engage with the sprocket. Once the engine and driving belt are in the correct position, the sprocket parts are secured together, ensuring the shaft is correctly positioned relative to the engine.

Career Highlights

Cunliffe has had a successful career at Lucas Industries Limited, where he has been instrumental in developing innovative fuel injection systems. His work has contributed to advancements in engine performance and efficiency.

Collaborations

Cunliffe has collaborated with various professionals in the field, including his coworker John R Jefferson, to enhance the development of fuel injection technologies.

Conclusion

Frank Cunliffe's contributions to fuel injection technology through his patents and work at Lucas Industries Limited highlight his role as an influential inventor in the automotive industry. His innovative designs continue to impact engine performance and efficiency.

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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