IP Library Granted Patent US 11,819,736
Granted Patent B2
US 11,819,736 · App. 16/672,322 · Granted Nov 21, 2023

Modular exercise machine

Inventors: Lars Eugene Gilstrom (Berkeley, CA); Justin Ziccardi (San Francisco, CA); David Mallard (Mill Valley, CA)
Assignee: Tonal Systems, Inc.
A63B24/0062A63B21/4027A63B22/0605A63B71/0622A63B21/005A63B21/00058
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,819,736
App. No.
16/672,322
Granted
Nov 21, 2023
Kind
B2
Abstract

Commands are received from an exercise actuator via a control interface. Collaborative information about an exercise session is received via a software interface. A force from a central electromagnetic resistance unit is provided in response to the control interface and the software interface via a resistance mechanical interface.

Claims (30)

1. An exercise machine, comprising:

a first exercise module, wherein the first exercise module includes:

a housing;

a monitor interface;

a central electromagnetic resistance unit;

a resistance mechanical interface comprising a spool and a cable configured to provide a force from the central electromagnetic resistance unit in response to:

a control interface that receives commands from an exercise actuator, wherein the cable extends out from a first side of the housing;

a software interface that receives collaborative information about an exercise session; and

a mechanical expansion port configured to link the first exercise module to a corresponding housing of a second exercise module via a mechanical attachment,

wherein the mechanical expansion port is located at a second side of the housing, wherein the second side of the housing is adjacent to the first side of the housing.

2. The exercise machine of claim 1 , wherein the mechanical expansion port comprises a shaft, wherein the first exercise module is further configured to couple in parallel to at least two other exercise modules via the shaft.

3. The exercise machine of claim 1 , wherein the mechanical expansion portion comprises a shaft wherein the first exercise module is further configured to couple in series to the second exercise module via the shaft.

4. The exercise machine of claim 1 , wherein the control interface is further configured to couple in parallel to a second control interface in the second exercise module.

5. The exercise machine of claim 1 , wherein the control interface is further configured to couple in series to a second control interface in the second exercise module.

6. The exercise machine of claim 1 , wherein the monitor interface is configured to accommodate a standard video connection to a monitor.

7. The exercise machine of claim 6 , wherein the standard video connection is an HDMI connection.

8. The exercise machine of claim 1 , wherein the central electromagnetic resistance unit is a motor.

9. The exercise machine of claim 1 , wherein the central electromagnetic resistance unit is two motors.

10. The exercise machine of claim 1 , wherein the exercise actuator is a cardiovascular exercise actuator.

11. The exercise machine of claim 1 , wherein the exercise actuator is a bike.

12. The exercise machine of claim 1 , wherein the exercise actuator is a bike and associated with a front wheel of the bike.

13. The exercise machine of claim 1 , wherein the exercise actuator is a bike and associated with pedals of the bike.

14. The exercise machine of claim 1 , wherein the exercise actuator is a bar.

15. The exercise machine of claim 1 , wherein the exercise actuator is the cable.

16. The exercise machine of claim 1 , wherein the monitor interface can provide a mirror operating mode.

17. The exercise machine of claim 1 , further comprising a monitor mechanical interface to support a monitor.

18. The exercise machine of claim 17 , wherein the monitor mechanical interface is a rotating socket.

19. The exercise machine of claim 17 , wherein the monitor mechanical interface can provide landscape orientation for video viewing and portrait orientation for exercise.

20. The exercise machine of claim 17 , wherein the monitor mechanical interface exposes lateral arms in portrait mode.

21. The exercise machine of claim 20 , wherein the lateral arms support the exercise actuator.

Assignments (3)
SECURITY INTEREST Recorded Mar 31, 2026
From: TONAL SYSTEMS, INC.
To: HERCULES CAPITAL, INC., AS AGENT
Reel/Frame 075306/0212 →
SECURITY INTEREST Recorded Oct 24, 2025
From: TONAL SYSTEMS, INC.
To: CUSTOMERS BANK
Reel/Frame 073255/0161 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 9, 2020
From: GILSTROM, LARS EUGENE; ZICCARDI, JUSTIN; MALLARD, DAVID
To: TONAL SYSTEMS, INC.
Reel/Frame 052359/0015 →
Continuity (1)
Related Publication 20210128978A1 · May 6, 2021
Cited By (1)
US 12,521,590