Capping apparatus

Details Capping apparatus Capping apparatus

1997-12-17

1998-09-22

Culver, Horace M.

Package making

Closing packages and filled receptacles

Separate closure applying

533315, B65B 728, B67B 320

Patent

active

058097422

ABSTRACT:
A capping apparatus includes a capping head 3 which is provided with a rotatable spindle. A plurality of permanent magnets 51 are embedded around the entire outer periphery at the upper end of the spindle, with adjacent permanent magnets 51 presenting magnetic poles of different polarities. An arcuate rotation imparting member 53 is fixedly mounted and includes a plurality of permanent magnets 55 which are disposed along a locus of travel of the permanent magnets 51 on the capping head 3, with adjacent permanent magnets 55 presenting magnetic poles of different polarities. As the capping head 3 moves through a threadable engaging zone C in a direction indicated by an arrow, coaction between the permanent magnets 51 and 55 causes the capping head 3 to rotate clockwise, thereby causing a cap 12 to be threadably engaged with a container 4. The permanent magnets 51 and 55 form together a drive source which is free from a sliding movement, thus preventing a occurrence of abraded powder and avoiding a contamination of the environment of a working area.

REFERENCES:
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patent: 4099361 (1978-07-01), Dix et al.
patent: 4364218 (1982-12-01), Obrist
patent: 4535583 (1985-08-01), Tanaka et al.
patent: 4765119 (1988-08-01), Aidlin et al.
patent: 5284001 (1994-02-01), Ochs
patent: 5313765 (1994-05-01), Martin
patent: 5437139 (1995-08-01), Martin
patent: 5490369 (1996-02-01), Ellis et al.
patent: 5714820 (1998-02-01), Mitsuhashi et al.

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