Package making – With means responsive to a sensed condition – Of package and filled receptacle closing or opening
Patent
1994-03-28
1995-03-28
Culver, Horace M.
Package making
With means responsive to a sensed condition
Of package and filled receptacle closing or opening
53308, 53317, 533315, B65B 728, B65B 5700, B65B 5704, B67B 320
Patent
active
054005647
ABSTRACT:
A capping machine for capping a container having a screw-threaded neck portion with a correspondingly screw-threaded cap. The machine comprises retaining means for retaining such a container in a retaining position and a rotary chuck for holding such a cap above the capping position, forward and reverse rotary drive means coupled to the chuck for rotating such a cap in both a clockwise sense and an anticlockwise sense, rotary movement monitoring means constructed and positioned to monitor rotation of the chuck, linear motion means coupled to the chuck to move the chuck both downwardly and upwardly, screwthread-disengagement monitoring means arranged to monitor when the screwthreads of such a cap and neck disengage momentarily as the cap is rotated in the unscrewing sense on the neck and the linear motion means urge the chuck downwardly, and control means connected to the rotary drive means, the rotary movement monitoring means, and the screwthread-disengagement monitoring means. The control means are such as to rotate the cap in the unscrewing sense, monitor the relative angular position of the cap when the screwthreads of the cap and the neck momentarily disengage, by means of the screwthread-disengagement means, and then to rotate the cap in the screwing sense by a predetermined amount dependent upon the length of the screwthreads.
REFERENCES:
patent: 4535583 (1985-08-01), Tanaka et al.
patent: 4614077 (1986-09-01), Muto et al.
patent: 4616466 (1986-10-01), Tanaka et al.
patent: 5321935 (1994-06-01), Spatz et al.
Dupres Christopher D.
Humphries Glyn A.
Culver Horace M.
GEI Filling Capping & Labelling Limited
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