AEROSOL DISPENSING VALVE

A valve assembly (20) can automatically dispense aerosol content from an aerosol container (22) at predetermined intervals without the use of electri c power. A diaphragm (58) at least partially defines an accumulation chamber (80) that receives aerosol content from the can (22) during an accumulati...

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Bibliographic Details
Main Authors KNICKERBOCKER, MICHAEL G, PETTERSON, TOR H, HOUSER, DAVID J
Format Patent
LanguageEnglish
French
Published 06.02.2007
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
NOZZLES
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
STORING
TRANSPORTING
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Summary:A valve assembly (20) can automatically dispense aerosol content from an aerosol container (22) at predetermined intervals without the use of electri c power. A diaphragm (58) at least partially defines an accumulation chamber (80) that receives aerosol content from the can (22) during an accumulation phase. Once the internal pressure of the accumulation chamber (80) reaches a predetermined threshold, the diaphragm (58) moves axially, carrying with it a leg (62) so as to unseal an outlet, and thereby initiate a spray burst. A pa wl (66) extends from the diaphragm (58), and engages a retention surface (68) t o resist movement of the diaphragm (58) and prolong the accumulation phase. Th e diaphragm (58) assumes its original position when the pressure within the accumulation chamber (80) falls below a threshold pressure.
Bibliography:Application Number: CA20022431024