Title:
AIR FOAMING PUMP TRIGGER SPRAYER
Document Type and Number:
WIPO Patent Application WO2006041571
Kind Code:
A3
Abstract:
A manually operated liquid foaming dispenser is attached to the top of a container of liquid and is manually reciprocated to dispense the liquid from the container as a foam. The dispenser includes a liquid pump chamber and an air pump chamber that respectively pump liquid and air under pressure to a discharge passage of the pump where the liquid and air are mixed, generating the foam dispensed from the dispenser. The air pump chamber has a tube valve controlling the discharge of air from the air pump to the discharge passage, and the air pump chamber is charged with air by opening the air pump chamber to the exterior environment of the dispenser.
Inventors:
FOSTER DONALD D (US)
Application Number:
PCT/US2005/029917
Publication Date:
December 14, 2006
Filing Date:
August 24, 2005
Export Citation:
Assignee:
CONTINENTAL AFA DISPENSING CO (US)
NELSON PHILIP L (US)
FOSTER DONALD D (US)
NELSON PHILIP L (US)
FOSTER DONALD D (US)
International Classes:
B67D7/60; B67D7/58
Foreign References:
| US4819835A | 1989-04-11 | |||
| US4958754A | 1990-09-25 | |||
| US4230277A | 1980-10-28 |
Other References:
See also references of EP 1841685A4
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