Process and device for production of an end closure on a shirred

Package making – Methods – Closing package or filled receptacle

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Details

17 42, 17 45, 17 49, 53370, 493121, A22C 1300

Patent

active

045259844

ABSTRACT:
A method and device to close an open end of a length of shirred casing material. A shaft mounted on a housing is moved against the said opened end to engage the same and then turn about its axis to tighten an end portion of the casing material onto the shaft means. The shaft is then retracted, pulling some additional casing material outwardly from the shirred casing material until substantially no portion of the shaft means remains inside of the shirred casing material and the shaft no longer maintains pressure against the casing material. Then, the shaft is again turned in the same first direction to form a double walled twist, the free end of which wanders into the shirred casing material. When the twist has reached a predetermined length the turning movement in this first direction is stopped, and a further rod coaxial with the shaft pushes that twist fully into the interior of the shirred casing material, thereby tearing the tightened end of the casing material from the shaft. Separate drive means are provided from the shaft and the rod, all of which are mounted on a housing which is slideably mounted on a base. The housing and base are mounted adjacent a mechanism which holds and positions the length of shirred casing material.

REFERENCES:
patent: 3162893 (1964-12-01), Townsend
patent: 3274005 (1966-09-01), Alsys
patent: 3383222 (1968-05-01), Alsys et al.
patent: 3564647 (1971-02-01), Matecki
patent: 4070729 (1978-01-01), Tums et al.

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