US 11,814,214 B2
Collapsible article comprising combinations and multiplications of foldable sections
Petar Kirilov Zaharinov, Sofia (BG)
Assigned to DIFOLD INC., Middletown, DE (US)
Filed by DIFOLD INC., Middletown, DE (US)
Filed on May 1, 2018, as Appl. No. 15/968,077.
Claims priority of provisional application 62/500,534, filed on May 3, 2017.
Prior Publication US 2018/0319538 A1, Nov. 8, 2018
Int. Cl. B65D 21/08 (2006.01); B65H 45/12 (2006.01); B65D 3/00 (2006.01); B29C 53/04 (2006.01); B31B 50/00 (2017.01); B31D 5/00 (2017.01); B32B 1/08 (2006.01); F16L 11/00 (2006.01); B31B 110/00 (2017.01); B31B 105/00 (2017.01); B31B 110/20 (2017.01); B29C 53/36 (2006.01); B29C 45/00 (2006.01); B29C 49/00 (2006.01); B65D 5/02 (2006.01); B31D 5/04 (2017.01); B31F 1/00 (2006.01); B32B 1/02 (2006.01)
CPC B65D 21/086 (2013.01) [B29C 53/04 (2013.01); B31B 50/00 (2017.08); B31D 5/0086 (2013.01); B32B 1/08 (2013.01); B65D 3/00 (2013.01); B65H 45/12 (2013.01); B29C 45/0017 (2013.01); B29C 49/00 (2013.01); B29C 53/36 (2013.01); B31B 2105/00 (2017.08); B31B 2110/00 (2017.08); B31B 2110/20 (2017.08); B31D 5/04 (2013.01); B31F 1/0009 (2013.01); B32B 1/02 (2013.01); B65D 5/02 (2013.01); F16L 11/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A collapsible article comprising:
a plurality of foldably interconnected foldable sections, at least two of said sections are looped to define a substantially cylindrical or conical outer surface of a portion of the article and each of the at least two sections consist of four curved segments interconnected by foldable edges, wherein
in a non-collapsed state, each of the at least two foldable sections is completely deployed and the four interconnected curved segments form the substantially cylindrical or conical outer surface,
in a collapsed state, each of the at least two foldable sections is collapsed and each of the four curved segments is polygonal in shape and form substantially flat surfaces that are at least partially superimposed and substantially parallel to each other, and remain interconnected by said foldable edges; and foldable edges connecting the plurality of foldable sections.