US 12,005,307 B1
Climbing exercise apparatus
Joseph D Maresh, West Linn, OR (US); and Kenneth W Stearns, Houston, TX (US)
Filed by Joseph D Maresh, West Linn, OR (US); and Kenneth W Stearns, Houston, TX (US)
Filed on Dec. 17, 2021, as Appl. No. 17/300,948.
Claims priority of provisional application 63/205,492, filed on Dec. 15, 2020.
Int. Cl. A63B 22/20 (2006.01); A63B 21/00 (2006.01); A63B 21/012 (2006.01); A63B 22/00 (2006.01)
CPC A63B 22/205 (2013.01) [A63B 21/00192 (2013.01); A63B 21/012 (2013.01); A63B 21/154 (2013.01); A63B 22/0005 (2015.10); A63B 22/001 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An exercise apparatus, comprising:
a) a frame;
b) a first pair of pulleys and a second pair of pulleys are rotatably connected to said frame, said first pair of pulleys and said second pair of pulleys each including an upper pulley vertically spaced from a lower pulley;
c) a first endless belt routed about said first pair of pulleys and a second endless belt routed about said second pair of pulleys;
d) a first pair of carriage members and a second pair of carriage members coupled to said first endless belt and said second endless belt, respectively;
e) a rack pin movably secured to each said first and second pair of carriage members; and
f) a pinion gear rotatably supported by each said first and second pair of carriage members, said pinion gear actuable to move said rack pin for selectively coupling said first and second pair of carriage members to respective said first endless belt and said second endless belt.