Patent Record
U.S. Patent No. 11,883,717 B2 covers an adaptive strength-training machine and method of use. The invention senses a user’s movement dynamically and engages a bidirectional motor to assist or resist the movement of a conventional selectorized weight stack without requiring the exerciser to stop, release the load, or adjust the selector pin.
Official Patent Record
| Item | Specification Detail |
|---|---|
| Patent Number | US 11,883,717 B2 |
| Title | Weightlifting machine and method of use |
| Application Number | US 17/153,600 |
| Filing Date | January 20, 2021 |
| Issue Date | January 30, 2024 |
| Inventors | Nicholas Claudio, Alexandre Ploumis |
| Priority Claim | U.S. Provisional Application 62/963,981 (Filed January 20, 2020) |
| Assignee | Solotrode LLC |
| Total Claims | 20 Claims (3 Independent Claims: 1, 11, 16) |
Claims Architecture
The patent grants broad protection covering both the electromechanical physical apparatus and the operational methods for closed-loop dynamic resistance modulation:
- Claim 1 (Independent Apparatus Claim): Protects a weightlifting machine comprising a frame, physical weight stack, selector rod, cable, pulleys, user grip, proximity sensors on the frame, a positional sensor coupled to a pulley, a bidirectional electric motor mechanically coupled to a pulley, and a controller connected to the sensors and motor.
- Claim 11 (Independent Method Claim): Protects the method of operating an adaptive weightlifting machine: sensing the weight stack movement, tracking positional displacement and speed via sensor streams, detecting changes in performance within a repetition, and driving the motor to selectively assist or resist the movement.
- Claim 16 (Independent System Claim): Protects the electromechanical integration of the controller, bidirectional motor drive, and pulley assembly configured for closed-loop intra-repetition resistance adjustments.
- Dependent Claims 2–10, 12–15, and 17–20: Detail specific implementations including Hall-effect proximity sensor arrays, magnetic markers on individual weight plates, rotary encoder configurations, belt-drive motor couplings, calibration protocols, and wireless communications.
Primary Sources & Verification
Full 18-page publication including detailed mechanical drawings, system flowcharts, and 20 granted claims.
Public file history, prosecution documents, status history, and assignment records on the USPTO portal.
Inquiries & Commercial Licensing
Solotrode LLC is the assignee of U.S. Patent No. 11,883,717 B2. Commercial equipment manufacturers, fitness OEMs, and institutional partners interested in licensing discussions or technical evaluation are invited to start a conversation.
Notice & Disclaimer: This page provides informational material regarding a published U.S. patent. It does not constitute a formal legal opinion or freedom-to-operate analysis and is not a substitute for reviewing the official issued patent or consulting qualified intellectual property counsel. Verify current legal status and public record through the USPTO Patent Center.