Process for manufacturing a closing device

Details Process for manufacturing a closing device Process for manufacturing a closing device

1995-06-20

1997-07-15

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

215252, 264320, 425393, 425403, B28B 2142, B65D 5000

Patent

active

056480377

ABSTRACT:
A process for manufacturing a closing device constituted by a tapped closing device and a tamper-proof ring inlcuding, on the one hand, an annular joining strip with controlled deformation and, on the other hand, an inner annular projection. A preforming of the tamper-proof ring is effected:

REFERENCES:
patent: 4890754 (1990-01-01), Dorn et al.
patent: 5151152 (1992-09-01), Kaenfe et al.
patent: 5219507 (1993-06-01), Ingram et al.
patent: 5402901 (1995-04-01), Carvalheiro et al.

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