Foam forming unit

Details Foam forming unit Foam forming unit

2006-12-12

2006-12-12

Kaufman, Joseph A. (Department: 3754)

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With common discharge

C222S189110, C222S190000, C222S321700

Reexamination Certificate

active

07147133

ABSTRACT:
A foam forming unit particularly suitable for a liquid container, comprising a pump for liquid and a pump for air, which are each provided with an inlet and an outlet, the foam forming unit further comprising a mixing chamber which is in communication with the outlet of each pump, a dispensing part provided with an outflow channel with a foam opening, the channel being in communication with the mixing chamber, and valves in respectively the inlet and the outlet of each pump for drawing in respectively delivering air and liquid, wherein one or more valves are formed integrally with the air pump or liquid pump into a single construction element.

REFERENCES:
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patent: 4057176 (1977-11-01), Horvath
patent: 4685594 (1987-08-01), Czech
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patent: 5443569 (1995-08-01), Uehira et al.
patent: 5570819 (1996-11-01), Uehira et al.
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patent: 6119899 (2000-09-01), Iizuka et al.
patent: 6398079 (2002-06-01), Garcia et al.
patent: 2001/0054626 (2001-12-01), Bethone et al.
patent: 2564153 (1985-11-01), None
patent: WO 97/13585 (1997-04-01), None
patent: WO 99/54054 (1999-10-01), None

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