US 11,987,280 B2
Pulley assemblies for use in modular utility systems
Alexander Leblanc, Vancouver (CA)
Assigned to ARCHI ENTERPRISES INC., Vancouver (CA)
Filed by ARCHI ENTERPRISES INC., Vancouver (CA)
Filed on Jun. 22, 2023, as Appl. No. 18/213,254.
Application 18/213,254 is a division of application No. 16/678,951, filed on Nov. 8, 2019, granted, now 11,697,445.
Application 16/678,951 is a continuation of application No. PCT/CA2018/051193, filed on Sep. 21, 2018.
Prior Publication US 2023/0347958 A1, Nov. 2, 2023
Int. Cl. B62B 3/00 (2006.01); B62B 3/02 (2006.01); B62B 3/06 (2006.01); B66C 23/36 (2006.01); B66F 9/08 (2006.01); E04G 25/04 (2006.01); F16B 7/10 (2006.01); F16B 7/14 (2006.01); F16M 11/26 (2006.01)
CPC B62B 3/02 (2013.01) [B62B 3/0637 (2013.01); B66C 23/36 (2013.01); B66F 9/08 (2013.01); E04G 25/04 (2013.01); F16B 7/10 (2013.01); F16B 7/14 (2013.01); B62B 2203/02 (2013.01); B62B 2203/11 (2013.01); B62B 2501/04 (2013.01); F16M 11/26 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vertical track assembly configured for controllably moving a load upward and downward, said vertical track assembly comprising:
a cart base assembly;
two spaced-apart vertical rails demountably engaged at one end with the cart base assembly;
a pulley assembly demountably engaged with the other end of the two spaced-apart vertical rails, the pulley assembly comprising an elongate structural support component, a first pulley component demountably engaged with an end of the elongate structural support component, a second pulley component demountably engaged with an opposite end of the elongate structural support component, and a cable in rolling cooperation with the first and second pulley components;
a first rail-rolling module demountably engaged with one of the two spaced-apart vertical rails, the first rail-rolling module provided with a load support assembly, said load support assembly demountably engaged with a first end of the cable; and
a second rail-rolling module demountably engaged with the other of the two spaced-apart vertical rails, the second rail-rolling module provided with a counterbalance assembly, said counter balance assembly demountably engaged with a second end of the cable.