Centering and holding unit for capping head

Details Centering and holding unit for capping head Centering and holding unit for capping head

2006-08-01

2006-08-01

Gerrity, Stephen F. (Department: 3721)

Package making

Closing packages and filled receptacles

Separate closure applying

C053S317000

Reexamination Certificate

active

07082739

ABSTRACT:
Containers (2) having a threaded neck (3) and a mouth (4) are capped by a unit (1) appearing as a carousel (5) equipped with capping heads caused to advance along a circular path (P) and capable of axial movement toward and away from the containers in such a way that each one can be fitted with a relative cap (11); each capping head of the unit (1) incorporates a gripper (31) furnished with two jaws (30) presenting relative conical surfaces (26), and respective cylindrical surfaces (27) designed to locate against the neck (3) of the container. When the cylindrical surfaces (27) register against the outer surface of the neck (3), the conical surfaces (32) are positioned with the lower edges (28) encroaching on the area compassed by the mouth (4) in such a way that the cap (11) can be gathered and aligned with the neck (3) of the container (2) before being tightened, thereby ensuring a precise fit.

REFERENCES:
patent: 1912677 (1933-06-01), Williams
patent: 2925797 (1960-02-01), Diezel et al.
patent: 3837141 (1974-09-01), Lorieux
patent: 4773560 (1988-09-01), Kittscher
patent: 6494017 (2002-12-01), McGrath et al.
patent: 2003/0136465 (2003-07-01), De Antoni Migliorati et al.
patent: 1532525 (1970-03-01), None
patent: 4039434 (1992-06-01), None
patent: 0559946 (1993-09-01), None
patent: 2001139094 (2001-05-01), None

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