US 12,144,312 B2
Rack and pinion roller gate system for a livestock transportation vehicle, and method of operation thereof
Brett Plazek, Mount Pleasant, TX (US); Aaron Larson, Yankton, SD (US); and David Peterson, Bronson, IA (US)
Assigned to WILSON TRAILER COMPANY, Sioux City, IA (US)
Filed by Wilson Trailer Company, Sioux City, IA (US)
Filed on Nov. 30, 2022, as Appl. No. 18/071,908.
Prior Publication US 2024/0172719 A1, May 30, 2024
Int. Cl. A01K 1/00 (2006.01); B60P 3/04 (2006.01); B62D 33/04 (2006.01)
CPC A01K 1/0029 (2013.01) [A01K 1/0035 (2013.01); B60P 3/04 (2013.01); B62D 33/042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rack and pinion roller gate system for a livestock transportation vehicle, said system comprising:
a roller gate assembly including a roller divider, a roller gate frame, a first and a second roller assembly, and a rotatable roller shaft disposed between the first and the second roller assembly; and
a first and a second roller track upon and along which the roller gate assembly is movable forward and backward,
the first and the second roller assembly each including, respectively, a first and a second roller having a plurality of teeth protruding outwardly therefrom, the first and the second roller being fixedly disposed on, respectively, a first and a second end of the rotatable roller shaft,
the first and the second roller track each including a plurality of openings therein, each of the openings being configured to receive therein and release therefrom a tooth of a corresponding roller as the first and second rollers rotate in unison via the rotatable roller shaft so as to move the roller gate assembly.