Container closures

Details Container closures Container closures

2004-07-23

2009-08-25

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C215S232000

Reexamination Certificate

active

07578040

ABSTRACT:
A closure for a container comprises a spout (22) containing a plastics coated foil (40) that is welded via one face to an inside flange (30) of the spout (22) and by means of a depending portion (42) on its opposite face to a side wall (10) of the container so that forces on the weld between foil portion (42) and the container when the closure is opened are in sheer rather than in tension. The closure can be used with a PET bottle or with other types of plastics or plastics coated containers.

REFERENCES:
patent: 3504817 (1970-04-01), Heider
patent: 4059201 (1977-11-01), Foster
patent: 4359169 (1982-11-01), Helms et al.
patent: 4457455 (1984-07-01), Meshberg
patent: 4815618 (1989-03-01), Gach
patent: 6364180 (2002-04-01), Cardenas
patent: 6877630 (2005-04-01), von Spreckelsen et al.
patent: 0801007 (1997-10-01), None
patent: 2108464 (1983-05-01), None
patent: 2337740 (1999-12-01), None
patent: 2350105 (2000-11-01), None
patent: 01-015087 (1990-08-01), None
patent: 99/61336 (1999-12-01), None
patent: WO-99/61337 (1999-12-01), None
patent: WO-99/61337 (1999-12-01), None
patent: WO-01/12531 (2001-02-01), None
patent: WO-01/13407 (2001-02-01), None

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