Package making – Closing packages and filled receptacles – Separate closure applying
Patent
1983-10-26
1985-12-17
Sipos, John
Package making
Closing packages and filled receptacles
Separate closure applying
53317, B65B 728, B67B 106
Patent
active
045585547
ABSTRACT:
A rotary application head for applying a screw-threaded closure to a container includes a collet 26 for gripping the closure, the collet being secured to a drive member 31 having an external flange 36 disposed between a thrust bearing 37 supported by the main body 10 and a friction clutch plate 38 backed by a pressure plate 40 which is driven by the body through pins 42. A piston 17 disposed in a pneumatic cylinder 16 in the body acts through push rods 19 to apply a predetermined axial loading between the pressure plate 40, friction clutch plate 30 and the flange 36. When the closure reaches a predetermined tightness, the reaction torque causes the collet and drive member to slip relative to the pressure plate and body, preventing over-tightening of the closure. External axial forces applied to the collet cause the piston 17 to be displaced axially to compensate for these forces without altering the torque at which slipping occurs.
REFERENCES:
patent: 3491516 (1970-01-01), Bergeron
patent: 3913301 (1975-10-01), Keller et al.
patent: 4246738 (1981-01-01), Ono
patent: 4249397 (1981-02-01), Guerra
patent: 4295320 (1981-10-01), Willingham
Bryan Roland T.
Metal Closures Limited
Sipos John
Studebaker Donald R.
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