Pushpa Khemchand | Inventor
SpringWheel Court Retriever is a working prototype designed to make ball retrieval faster, more ergonomic, and less disruptive to training. Protected by U.S. Utility Patent 11,844,984 B2, it integrates retrieval, storage, and transport in a single system, with retracting wheels that can be locked into collection mode for added stability and control.
About The Invention
SpringWheel Court Retriever is a patented, spring-assisted retrieval cart that collects tennis balls hands-free. Compressible wheel supports allow the basket to lower to the court, where balls pass through flexible bottom openings. The retracting wheels can be locked in place with a toggle/switch, integrating retrieval, storage, and transport in one motion.
Working prototype demonstration of SpringWheel Court Retriever
Patent Protected
U.S. Utility Patent 11,844,984 B2
Working Prototype
Functioning proof-of-concept video completed
Locking Collection Mode
Toggle/switch secures retracted wheels
Integrated System
Retrieval, storage, and transport in one motion
THE PROBLEM:
Ball collection is an accepted inefficiency in tennis.
During practice, lessons, and drills, players and coaches repeatedly stop to bend, reach, gather balls, and restart. That routine wastes time, disrupts rhythm, and creates unnecessary physical strain. Because it is so common, it is often treated as unavoidable. SpringWheel Court Retriever was created to challenge that assumption.
Designed to eliminate repetitive stopping, bending, and manual collection.
A smarter way to retrieve tennis ball
SpringWheel Court Retriever turns ball collection into a seamless part of training. Rather than treating retrieval as a separate task, it allows users to move, collect, and continue with less interruption and less strain.1. Hands-Free Retrieval
Collects balls without repeated bending or separate pickup tools.2. Integrated Storage
Balls move directly into the basket as they are collected.3. Smooth Transport
Retrieval and carrying happen in the same system.
What the invention is
SpringWheel Court Retriever is a patented, spring-assisted retrieval cart that collects tennis balls hands-free. Compressible wheel supports allow the basket to lower to the court, where balls pass through flexible bottom openings. The retracting wheels can be locked in place with a toggle/switch, integrating retrieval, storage, and transport in one motion.
How SpringWheel Court Retriever works
Step 1 — Roll into position
The cart moves easily across the court toward scattered balls.Step 2 — Lower/lock
When downward pressure is applied, the spring-supported wheels retract into the unit, lowering the basket to the playing surface. A toggle/switch locking mechanism secures the retracted wheels in place, allowing the device to remain lowered for controlled ball collection, storage, and transportation.Step 3 — Collect and wheel
Balls pass through flexible openings built into the basket floor and remain contained inside for easy storage and transport.
Positioned for collection
Wheels retract into collection mode
Balls collected and retained for transport
WHY IT'S DIFFERENT
What sets it apart
SpringWheel Court Retriever improves the exact point where utility matters most: the act of collection itself. Instead of relying on a chute, a separate retrieval tool, or a rigid pickup frame, it uses an integrated spring-wheel architecture that allows the basket to lower to the playing surface so balls pass through flexible openings built directly into the bottom of the cart. When the wheels retract under downward pressure, they can be locked in place with a toggle/switch, creating a more stable and controlled collection position. Retrieval, storage, and transport happen in one continuous system.
Integrated spring-wheel architecture
Retracting wheels with toggle/switch lock
Stable collection position
Retrieval, storage, and transport in one system
Less bending and less interruption
PATENT & PROOF
Protected. Demonstrated. Ready for the next stage.
SpringWheel Court Retriever is protected by U.S. Utility Patent 11,844,984 B2 and supported by a functioning demo video showing the system performing its intended purpose. The prototype demonstrates the cart moving into position, lowering through its retracting spring-supported wheel structure, optional to lock into collection mode through a toggle/switch mechanism, collecting balls through flexible basket openings, and retaining them for storage and transport.Patent: US 11,844,984 B2
Status: Issued U.S. utility patent
Stage: Working prototype/proof of concept
Availability: Not yet commercially available
FUTURE POTENTIAL
Built for more than one use
The spring-assisted wheel concept behind SpringWheel Court Retriever has broader potential on a platform beyond tennis. The same design principle may be adapted to other rolling products, including luggage. Future powered versions may also extend the invention into more advanced retrieval systems capable of autonomously mapping an area and collecting balls with minimal user input.Three future-use cards:
Sports training systems
Luggage and rolling products
Powered autonomous retrieval
Concept application: luggage mobility
This concept demonstration shows how the SpringWheel retractable wheel system could extend beyond tennis into luggage applications.
ABOUT THE INVENTOR
Pushpa Khemchand is an independent inventor focused on solving overlooked, real-world inefficiencies through practical design. SpringWheel Court Retriever reflects that approach by rethinking one of the most repetitive and physically demanding parts of tennis practice and replacing it with a more efficient system.
Interested in licensing, partnerships, media, or prototype discussions?
SpringWheel Court Retriever is a patented working prototype designed to make tennis ball retrieval faster, more ergonomic, and more controlled through its spring-assisted, lockable wheel system. It is currently available for serious conversations related to licensing, development, partnerships, and media coverage.
Contact line:
Pushpa Khemchand
SpringWheel Court Retriever
U.S. Utility Patent 11,844,984 B2
Working prototype/proof of concept
Retracting wheels with toggle/switch lock
Not yet commercially available