Form-fill-seal machine

Details Form-fill-seal machine Form-fill-seal machine

1985-09-26

1987-06-09

Spruill, Robert L.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

53578, 493248, 493302, 493476, B65B 906

Patent

active

046710477

ABSTRACT:
A forming shoulder for an HFFS machine comprises a pair of side wires 3a and 3b each comprising an upper limb 11 joined to a lower limb 14 at an elbow 12 and each supported near a respective end of a support bar 16. The width of the tube, defined by side walls where the tube passes inwardly of the two lower limbs 14 and by a floor (defined by the marginal portions of the film 10) and a ceiling (defined by the central portion 10a of the film spanning the gap between the two elbows 12), is adjustable by re-positioning of the side wires 3a and 3b on the support bar 16 and the height of the tube is adjustable by replacement of one pair of side wires by a different pair having an alternative geometry.

REFERENCES:
patent: 2445703 (1948-07-01), Williams
patent: 2886930 (1959-05-01), Martin
patent: 3296770 (1967-01-01), Wilson
patent: 3335540 (1967-08-01), Reil et al.
patent: 3354799 (1967-11-01), Harrison
patent: 3482491 (1969-12-01), Gustafson
patent: 3962958 (1976-06-01), Hobart
patent: 4073121 (1978-02-01), Greenawalt
patent: 4185443 (1980-01-01), Budzyn
patent: 4517786 (1985-05-01), Barker
patent: 4529471 (1985-07-01), Vaughan

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