US 12,371,271 B2
Conveyor with towable elevating carriage
Kenneth B. Drost, Littleton, CO (US); Job Bacon-Maldonado, III, Highlands Ranch, CO (US); and Job Maldonado, Jr., Littleton, CO (US)
Assigned to MULTILIFT, INC., Lakewood, CO (US)
Filed by Multilift, Inc., Lakewood, CO (US)
Filed on Jul. 11, 2023, as Appl. No. 18/220,733.
Application 18/220,733 is a continuation in part of application No. 18/079,668, filed on Dec. 12, 2022, granted, now 11,919,720.
Application 18/079,668 is a continuation of application No. 17/240,764, filed on Apr. 26, 2021, granted, now 11,524,847, issued on Dec. 13, 2022.
Application 17/240,764 is a continuation in part of application No. 16/793,974, filed on Feb. 18, 2020, granted, now 10,988,322, issued on Apr. 27, 2021.
Claims priority of provisional application 62/806,466, filed on Feb. 15, 2019.
Prior Publication US 2023/0348196 A1, Nov. 2, 2023
Int. Cl. B65G 41/00 (2006.01); B62D 63/06 (2006.01)
CPC B65G 41/008 (2013.01) [B62D 63/062 (2013.01); B65G 41/002 (2013.01); B65G 2207/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A towable conveyor system comprising:
a first towing position and a second position of use;
a conveyor having a support frame, a plurality of support elements for conveying articles up the conveyor, an outer upper surface on which the articles are conveyed, a bottom surface opposite the outer upper surface, a drive end, and an idle end opposite the drive end;
an enclosure positioned at the drive end;
a motor positioned in the enclosure and configured to drive the conveyor, the motor having a motor shaft;
a drive shaft;
a secondary drive shaft;
a first roller chain connecting the drive shaft and the secondary draft shaft;
a second roller chain connecting the secondary drive shaft and the motor shaft; and
a tension assembly configured to maintain tension on the second roller chain when the conveyor moves between the first towing position and the second position of use.