US 11,858,769 B2
Web splice
Xiaokai Niu, Hartsville, SC (US); and David E. Rhodes, Hartsville, SC (US)
Assigned to Sonoco Development, Inc., Hartsville, SC (US)
Filed by Sonoco Development, Inc., Hartsville, SC (US)
Filed on Apr. 13, 2020, as Appl. No. 16/847,065.
Claims priority of provisional application 62/869,191, filed on Jul. 1, 2019.
Claims priority of provisional application 62/833,891, filed on Apr. 15, 2019.
Prior Publication US 2020/0324992 A1, Oct. 15, 2020
Int. Cl. B65H 19/18 (2006.01); B29C 65/00 (2006.01)
CPC B65H 19/1842 (2013.01) [B29C 66/12423 (2013.01); B29C 66/12443 (2013.01); B65H 2301/4615 (2013.01); B65H 2301/4622 (2013.01); B65H 2301/46314 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A web splice for attaching two webs, the web splice comprising:
a first, expiring web having a trailing edge and first side edges defining a first width (W1), the trailing edge defining a first shape that is non-linear, the first side edges being parallel to a web running direction (D);
a second, trailing web having a leading edge and second parallel side edges and a second width (W2) the same as the first width (W1), the leading edge defining a second shape that is non-linear and matches the first shape in interlocking fashion, the second side edges being parallel to the web running direction (D);
the trailing edge and the leading edge forming a non-linear butt joint in which the trailing edge and the leading edge are locked together and do not separate while in the same plane without moving one of the webs out of the plane, the non-linear butt joint comprising a middle section and two side sections, the two side sections extending from the middle section, each side section terminating at a junction of a first side edge and a second side edge, each side section forming an acute included angle (α) with a first side edge of the first web; and
a single sided adhesive member adhered to the first web and the second web and overlapping the middle section, the adhesive member having a width less than the first width (W1) and less than the second width (W2).