US 12,071,264 B2
Apparatus for wrapping a load and associated methods
Guy Lopes, Sherbrooke (CA); and Priscille Tremblay, Coaticook (CA)
Assigned to WULFTEC INTERNATIONAL INC., Québec (CA)
Filed by WULFTEC INTERNATIONAL INC., Ayer's Cliff (CA)
Filed on Jul. 13, 2023, as Appl. No. 18/221,466.
Application 18/221,466 is a division of application No. 17/067,050, filed on Oct. 9, 2020, granted, now 11,738,895.
Claims priority of provisional application 62/914,101, filed on Oct. 11, 2019.
Claims priority of application No. CA 3058590 (CA), filed on Oct. 11, 2019.
Prior Publication US 2023/0356866 A1, Nov. 9, 2023
Int. Cl. B65B 11/58 (2006.01); B65B 11/04 (2006.01)
CPC B65B 11/585 (2013.01) [B65B 11/045 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus for wrapping a load with a first web material and a second web material, the load comprising an upper portion having an upper surface and defining an upper peripheral surface and a lower portion having a lower surface and defining a lower peripheral surface, the apparatus comprising:
a dispenser frame having a first starting position, a first end position, a second starting position, and a second end position, wherein the first starting position is associated with a first height, the second starting position is associated with a second height, the first height being different than the second height;
a first wrapping material dispenser mounted to the dispenser frame and being vertically translatable therealong and along a first wrapping path extending between the first starting position and the first end position, the first wrapping material dispenser being configured to at least partially wrap the upper peripheral surface of the load with the first web material upon a relative rotation between the load and the first wrapping material dispenser during a wrapping cycle;
a second wrapping material dispenser mounted to the dispenser frame and being vertically translatable therealong and along a second wrapping path extending between the second starting position and the second end position, the second wrapping material dispenser being configured to at least partially wrap the lower peripheral surface of the load with the second web material upon a relative rotation between the load and the second wrapping material dispenser during the wrapping cycle;
a first web retaining assembly adjacent to the first starting position to hold a tail of the first web material; and
a second web retaining assembly adjacent to the second starting position to hold a tail of the second web material.