Shirred tubular casing and apparatus including shirring member f

Details Shirred tubular casing and apparatus including shirring member f Shirred tubular casing and apparatus including shirring member f

1983-08-05

1984-12-11

Shepperd, John W.

Pipes and tubular conduits

Flexible

Casing

F16L 1110

Patent

active

044872313

ABSTRACT:
Disclosed is a shirred tubular casing comprising an outwardly pointing helical main fold structure comprising windings of two main folds and primary accessory folds arranged between the main folds and an accessory fold structure comprising secondary accessory folds. Also disclosed is an annular shirring member and an apparatus equipped with this shirring member for manufacturing the shirred tubular casing.

REFERENCES:
patent: 3271168 (1966-09-01), Alsys
patent: 3907003 (1975-09-01), Regner et al.
patent: 4185358 (1980-01-01), Regner et al.
patent: 4325413 (1982-04-01), Lenhart et al.

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