Method for producing and sealing an opening in a hollow molding

Details Method for producing and sealing an opening in a hollow molding Method for producing and sealing an opening in a hollow molding

1987-06-23

1988-11-01

Ball, Michael W.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

156107, 156109, 52171, 52172, 52788, 52790, E06B 324

Patent

active

047818786

ABSTRACT:
A method is described wherein at least one opening (6) is produced in a wall (2) of a hollow molding (1), with the formation of a shoulder (9) surrounding the opening (6) and projecting into the interior (8) of the hollow molding (1). A plug (12) of a sealing compound (11) is produced for sealing the opening (6), or the opening (6) in the wall (2) and a further opening (7) in the opposite wall (3) of the hollow molding (1), this plug being securely retained in the interior (8) of the hollow molding (1) by the feature that the plug extends into the space (16) defined by the shoulder (9) and rests on the inner surface (13) of the opposite wall (3) of the hollow molding (1).

REFERENCES:
patent: 4049480 (1977-09-01), Kutschke
patent: 4284450 (1981-08-01), Duttlinger
patent: 4670954 (1987-06-01), Lisec

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