Closure apparatus with magnetic coupling for screwing on a plast

Details Closure apparatus with magnetic coupling for screwing on a plast Closure apparatus with magnetic coupling for screwing on a plast

1982-08-16

1985-01-08

Culver, Horace M.

Package making

Closing packages and filled receptacles

Separate closure applying

B65B 320

Patent

active

044920687

ABSTRACT:
A magnetic clutch is provided for transmitting and limiting the torque in screw-on heads for screw closures. The clutch has a high number of poles (at least eight and preferably twelve poles) and the spacing between the clutch magnets, is at least six times the total axial tolerances between the clutch magnets.

REFERENCES:
patent: 2076631 (1937-04-01), Gantzer
patent: 2435112 (1948-01-01), Wightman
patent: 2705101 (1955-03-01), Everett
patent: 3573517 (1971-04-01), Osterstrom
patent: 3714760 (1973-02-01), Roberts et al.
patent: 3913301 (1975-10-01), Keller et al.
patent: 4065234 (1977-12-01), Yoshiyuki et al.
patent: 4153851 (1979-05-01), Hovorka
patent: 4222215 (1980-09-01), Takano
patent: 4246738 (1981-01-01), Ono
patent: 4364218 (1982-12-01), Obrist

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