EP 0102616 B1 19860618 - METHOD AND APPARATUS FOR FORMING A TUBE CUTTING FROM A FLAT WEB OF FLEXIBLE MATERIAL
Title (en)
METHOD AND APPARATUS FOR FORMING A TUBE CUTTING FROM A FLAT WEB OF FLEXIBLE MATERIAL
Publication
Application
Priority
- DE 3233098 A 19820907
- DE 3306053 A 19830222
Abstract (en)
[origin: US4469542A] Pieces of tube are produced from a flat flexible web by feeding the web intermittently into apparatus which first makes transverse incisions from each edge partly across the web at a spacing equal to the desired tube lengths. The side portions between the incisions are then folded along longitudinal fold lines so that their end edges overlap and are welded together. In a subsequent operation, the non-incised central flat portion of the web is severed in line with the incisions and the tube elements thus formed are then moved transversely to the direction of web movement by a reciprocating slide to stand upright on tube-shaping members.
IPC 1-7
IPC 8 full level
B29C 53/38 (2006.01); B29C 65/00 (2006.01); B31B 1/60 (2006.01); B31B 5/00 (2006.01); B31B 23/00 (2006.01); B31B 50/38 (2017.01); B31B 50/52 (2017.01)
CPC (source: EP US)
B31F 1/10 (2013.01 - EP US); B31B 50/256 (2017.07 - EP US); B31B 50/84 (2017.07 - EP US); Y10T 156/1013 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0102616 A1 19840314; EP 0102616 B1 19860618; BR 8304858 A 19840424; CA 1206027 A 19860617; ES 525413 A0 19850616; ES 538131 A0 19861216; ES 8506500 A1 19850616; ES 8702236 A1 19861216; JP H0780264 B2 19950830; JP S59118443 A 19840709; MX 157138 A 19881028; SG 37589 G 19891117; SU 1276251 A3 19861207; US 4469542 A 19840904
DOCDB simple family (application)
EP 83108558 A 19830831; BR 8304858 A 19830906; CA 436082 A 19830906; ES 525413 A 19830906; ES 538131 A 19841130; JP 16339383 A 19830907; MX 19864583 A 19830907; SG 37589 A 19890615; SU 3644601 A 19830906; US 52906483 A 19830902