Method of making a piece of tube from a flat web of flexible mat

Details Method of making a piece of tube from a flat web of flexible mat Method of making a piece of tube from a flat web of flexible mat

1983-09-02

1984-09-04

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156466, 493 81, 493179, 493182, 493295, B31B 526, B31B 142

Patent

active

044695420

ABSTRACT:
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.

REFERENCES:
patent: 3838632 (1974-10-01), Miyake
patent: 3884131 (1975-05-01), Palsson
patent: 4295841 (1981-10-01), Waud
patent: 4331499 (1982-05-01), Madsen

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