Method of making a light-sealing cap with feature for addition o

Details Method of making a light-sealing cap with feature for addition o Method of making a light-sealing cap with feature for addition o

1995-01-24

1997-05-27

Ortiz, Angela

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

264250, B29C 4328, B29C 4514

Patent

active

056329504

ABSTRACT:
A light-lock cap comprising a shell, means to seal said shell to a container, means to allow passage of fluids through said cap into a container covered by said cap, means to allow gases to exit a container covered by said cap, said means for liquid passage comprises a labyrinth passage with an upward facing inlet and downward facing exit, said means for gases to exit comprises a labyrinth passage with a side facing orifice on the interior of said cap and a side facing orifice on the exterior of said cap. There is also provided a method of forming the cap.

REFERENCES:
patent: 1920261 (1933-08-01), Lavender et al.
patent: 3348744 (1967-10-01), Morin
patent: 3354529 (1967-11-01), James
patent: 3878962 (1975-04-01), Holbrook et al.
patent: 4497765 (1985-02-01), Wilde et al.
patent: 4671746 (1987-06-01), Sessody
patent: 4931245 (1990-06-01), Schneider et al.
Abstract--3121P93 of FR 2674038-A1.

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