US 12,246,206 B2
Fitness device for generating internal opposing muscle resistance
Michael Wayne Tang, Taipei (TW)
Filed by Michael Wayne Tang, Taipei (TW)
Filed on May 23, 2022, as Appl. No. 17/751,246.
Application 17/751,246 is a division of application No. 16/108,880, filed on Aug. 22, 2018, granted, now 11,358,019.
Application 16/108,880 is a continuation of application No. 15/029,280, abandoned, previously published as PCT/US2014/061101, filed on Oct. 17, 2014.
Claims priority of provisional application 61/910,612, filed on Dec. 2, 2013.
Claims priority of provisional application 61/910,602, filed on Dec. 2, 2013.
Claims priority of provisional application 61/910,626, filed on Dec. 2, 2013.
Claims priority of provisional application 61/891,986, filed on Oct. 17, 2013.
Prior Publication US 2022/0355152 A1, Nov. 10, 2022
Int. Cl. A63B 21/068 (2006.01); A63B 21/00 (2006.01); A63B 21/002 (2006.01); A63B 21/04 (2006.01); A63B 21/055 (2006.01); A63B 23/035 (2006.01); A63B 23/12 (2006.01); A63B 21/16 (2006.01); A63B 21/28 (2006.01); A63B 23/02 (2006.01); A63B 23/04 (2006.01); A63B 71/00 (2006.01); A63B 71/02 (2006.01)
CPC A63B 21/068 (2013.01) [A63B 21/00185 (2013.01); A63B 21/0023 (2013.01); A63B 21/0414 (2013.01); A63B 21/0552 (2013.01); A63B 21/4023 (2015.10); A63B 21/4033 (2015.10); A63B 21/4034 (2015.10); A63B 21/4035 (2015.10); A63B 23/03516 (2013.01); A63B 23/03533 (2013.01); A63B 23/03575 (2013.01); A63B 23/1209 (2013.01); A63B 23/1218 (2013.01); A63B 23/1227 (2013.01); A63B 23/1281 (2013.01); A63B 21/00069 (2013.01); A63B 21/0442 (2013.01); A63B 21/0557 (2013.01); A63B 21/1618 (2013.01); A63B 21/169 (2015.10); A63B 21/28 (2013.01); A63B 23/0211 (2013.01); A63B 23/0222 (2013.01); A63B 23/03525 (2013.01); A63B 23/03541 (2013.01); A63B 23/0355 (2013.01); A63B 2023/0411 (2013.01); A63B 23/0494 (2013.01); A63B 2071/0018 (2013.01); A63B 2071/026 (2013.01); A63B 2209/02 (2013.01); A63B 2209/08 (2013.01); A63B 2209/10 (2013.01); A63B 2210/00 (2013.01); A63B 2210/50 (2013.01); A63B 2220/52 (2013.01); A63B 2225/02 (2013.01); A63B 2225/09 (2013.01); A63B 2225/50 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fitness device for exercising by creating opposing muscle resistance instead of employing weights, gravity, or elastic bands, the fitness device comprising:
A) a flexible, substantially inelastic strap; and
B) a plurality of handles positioned on the flexible, substantially inelastic strap, each comprising:
i) a first grip portion;
ii) a second grip portion, and
iii) an internal rail,
wherein each handle of the plurality of handles has a non-movable configuration in which the first grip portion and the second grip portion are engaged with each other to prevent sliding movement of the respective handle along the length of the flexible, substantially inelastic strap, and wherein each of the handles has a movable configuration in which the first grip portion and the second grip portion are disengaged sufficiently from each other to allow sliding movement of the respective handle along the length of the flexible, substantially inelastic strap; and
wherein in the non-movable configuration, the respective handle envelops the flexible, substantially inelastic strap and the internal rail to frictionally engage the flexible, substantially inelastic strap against the internal rail to hold the respective handle in the non-movable position.