US 12,145,016 B2
Adjustable resistance exercise machine
Sebastien Anthony Louis Lagree, Chatsworth, CA (US); Samuel D. Cox, Yuba City, CA (US); Todd G. Remund, Yuba City, CA (US); and Max Wunderlich, Los Angeles, CA (US)
Assigned to Lagree Technologies, Inc., Chatsworth (CA)
Filed by Lagree Technologies, Inc., Chatsworth, CA (US)
Filed on Oct. 2, 2023, as Appl. No. 18/479,268.
Application 18/479,268 is a continuation of application No. 17/363,080, filed on Jun. 30, 2021, granted, now 11,771,940.
Application 17/363,080 is a continuation in part of application No. 17/026,624, filed on Sep. 21, 2020, granted, now 11,247,090, issued on Feb. 15, 2022.
Application 17/026,624 is a continuation of application No. 16/202,264, filed on Nov. 28, 2018, granted, now 10,780,307, issued on Sep. 22, 2020.
Claims priority of provisional application 62/591,581, filed on Nov. 28, 2017.
Prior Publication US 2024/0024723 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 21/00 (2006.01); A63B 21/02 (2006.01); A63B 21/045 (2006.01); A63B 21/16 (2006.01); A63B 21/22 (2006.01); A63B 23/035 (2006.01); A63B 23/12 (2006.01)
CPC A63B 21/00069 (2013.01) [A63B 21/00065 (2013.01); A63B 21/025 (2013.01); A63B 21/045 (2013.01); A63B 21/0455 (2013.01); A63B 21/153 (2013.01); A63B 21/155 (2013.01); A63B 21/22 (2013.01); A63B 21/4043 (2015.10); A63B 23/03525 (2013.01); A63B 23/12 (2013.01); A63B 21/1618 (2013.01); A63B 21/169 (2015.10); A63B 2225/093 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An adjustable resistance exercise machine, comprising:
a shaft having a first end and a second end;
a pulley mounted on the shaft between the first end and the second end;
an elongated member wound on the pulley, wherein pulling of the elongated member causes the pulley to rotate about the shaft;
a first engagement member coupled to the pulley wherein rotation of the pulley also rotates the first engagement member;
a first spiral spring that provides a first resistance to the rotation of the first engagement member, wherein the first spiral spring has a singular central hub that is central to the first spiral spring and that is positioned about the shaft;
a second engagement member selectively engageable with or disengageable from the first engagement member, wherein when the second engagement member is engaged with the first engagement member the rotation of the pulley also rotates the second engagement member and wherein when the second engagement member is disengaged from the first engagement the second engagement member is stationary; and
a second spiral spring that provides a second resistance to the rotation of the second engagement member, wherein the second spiral spring has a singular central hub that is central to the second spiral spring and that is positioned about the shaft.