US 12,168,596 B2
Simultaneously oppositely rotating sheaves
Steven A. Hunsaker, Gibson City, IL (US)
Filed by Steven A. Hunsaker, Gibson City, IL (US)
Filed on Apr. 27, 2021, as Appl. No. 17/242,033.
Claims priority of provisional application 63/015,934, filed on Apr. 27, 2020.
Prior Publication US 2021/0331901 A1, Oct. 28, 2021
Int. Cl. B66D 3/26 (2006.01); B66C 1/12 (2006.01)
CPC B66D 3/26 (2013.01) [B66C 1/12 (2013.01); B66D 2700/025 (2013.01); B66D 2700/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A rigging device, comprising:
a first sheave having a first line wrapped in one direction thereon;
at least one second sheave having a second line wrapped in an opposite direction thereon, said at least one second sheave in registration with said first sheave;
an axle operatively connecting through said first sheave and said at least one second sheave, wherein said axle turns said first sheave and said at least one second sheave simultaneously;
at least one gear box operatively engaging said axle, at least one motor turning said at least one gear box, at least one signal unit controlling said motor, and at least one power unit supplying power to said at least one motor;
said first sheave and said at least one second sheave each having a hexagonal centered opening in mutual registration; and,
said axle having two ends between a length and a hexagonal cross section along the length, said hexagonal cross section fitting tightly into said openings of said first sheave and said at least one second sheave.