US 12,109,456 B2
Modular exercise machine
Lars Eugene Gilstrom, Berkeley, CA (US); Justin Ziccardi, San Francisco, CA (US); and David Mallard, Mill Valley, CA (US)
Assigned to Tonal Systems, Inc., San Francisco, CA (US)
Filed by Tonal Systems, Inc., San Francisco, CA (US)
Filed on Sep. 15, 2023, as Appl. No. 18/369,059.
Application 18/369,059 is a continuation of application No. 16/672,322, filed on Nov. 1, 2019, granted, now 11,819,736.
Prior Publication US 2024/0001197 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 22/06 (2006.01); A63B 21/00 (2006.01); A63B 21/005 (2006.01); A63B 24/00 (2006.01); A63B 71/06 (2006.01)
CPC A63B 24/0062 (2013.01) [A63B 21/4027 (2015.10); A63B 22/0605 (2013.01); A63B 71/0622 (2013.01); A63B 21/00058 (2013.01); A63B 21/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exercise machine, comprising:
a first housing;
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 first housing; and
a mechanical expansion port configured to link the first housing to a second housing via a mechanical attachment, wherein the mechanical expansion port is located at a second side of the first housing, wherein the second side of the first housing is adjacent to the first side of the first housing.