Pressurized can with inner shell

Details Pressurized can with inner shell Pressurized can with inner shell

2011-01-18

2011-01-18

Shaver, Kevin P (Department: 3754)

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With discharge assistant for each source

C222S394000, C222S402100, C206S219000, C206S222000

Reexamination Certificate

active

07870976

ABSTRACT:
The invention relates to a pressurized can comprising a body, a valve arranged in a dome, a base (16), an inner shell (1) with detachable, push-off type cover (8) arranged on the base (16) and a movable shaft (7) arranged in a fixing element (2) and extending through the base (16) into the inner shell (1) and serving as release element for the inner shell with the inner shell (1) being connected to the base (16) via the fixing element (2), moreover comprising a piston element (3) movable in longitudinal direction of the inner shell (1) and being arranged inside the inner shell (1), the piston element yielding a sealing effect at the inner shell's (1) inner wall and interacting with the shaft (7) in such a manner that when the shaft (7) is moved into the inner shell (1) the piston element (3) causes a liquid present inside the inner shell (1) to be pressurized so that the cover (8) is forced off.

REFERENCES:
patent: 2786769 (1957-03-01), Greenspan
patent: 2793776 (1957-05-01), Lipari
patent: 4323177 (1982-04-01), Nielsen
patent: 4651899 (1987-03-01), Pauls et al.
patent: 4769395 (1988-09-01), Pauls
patent: 5011047 (1991-04-01), Cruysberghs
patent: 5215225 (1993-06-01), Kopp
patent: 5456386 (1995-10-01), Jesswein
patent: 5638992 (1997-06-01), Lim et al.
patent: 5692644 (1997-12-01), Gueret
patent: 5884759 (1999-03-01), Gueret
patent: 6247586 (2001-06-01), Herzog et al.
patent: 6675993 (2004-01-01), Morck
patent: 6997357 (2006-02-01), Fuchs
patent: 2002/0088724 (2002-07-01), Morck
patent: WO 84/01355 (1984-04-01), None

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