Closure tie for tubes of film material for enclosing food, a met

Details Closure tie for tubes of film material for enclosing food, a met Closure tie for tubes of film material for enclosing food, a met

1980-09-05

1982-12-21

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

File folder or file envelope

Hanging type

53424, 53417, 426105, B65D 3328

Patent

active

043645119

ABSTRACT:
A tube of film material for enclosing food has a closure tie with a suspension loop, the enclosure tie including the knot lying in a recess in the pleated tip of the film material. The recess in which the tie is located is formed by softening the tube by heating, for example, with warm air, infrared radiation, ultrasonic means, by previously heating the tie filament, or by treating the film material with solvents or softening agents. Apparatus is disclosed for carrying out the process.

REFERENCES:
patent: 1967992 (1934-07-01), Ellstrom et al.
patent: 2225694 (1940-12-01), Freeman
patent: 2670294 (1954-02-01), Frank
patent: 3041801 (1962-07-01), Harrison
patent: 3479788 (1969-11-01), Dreyfus
patent: 3497131 (1970-02-01), Tracy
patent: 3620774 (1971-11-01), Ford et al.
patent: 3635738 (1972-01-01), Hofmann et al.
patent: 3922398 (1975-11-01), Bridgeford et al.
patent: 3935320 (1976-01-01), Chiv et al.

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