MULTI-LAYER ONE-WAY VALVE FOR PACKAGING

A multi-layer control device or one-way valve (100) includes: a first layer (10) having at least one first opening (12) formed therein; and a second layer (20). The first and second layers are joined together such that at least one channel (24) is defined therebetween, which channel selectively perm...

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Bibliographic Details
Main Authors BHAWALKAR SARANG, HARTMAN WILLIAM G, SHIM ANNE, GARDNER DAVID R
Format Patent
LanguageEnglish
Published 20.08.2015
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
ACTUATING-FLOATS
BLASTING
COCKS
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
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HANDLING THIN OR FILAMENTARY MATERIAL
HEATING
LIGHTING
MECHANICAL ENGINEERING
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TAPS
THERMAL INSULATION IN GENERAL
TRANSPORTING
VALVES
WEAPONS
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Summary:A multi-layer control device or one-way valve (100) includes: a first layer (10) having at least one first opening (12) formed therein; and a second layer (20). The first and second layers are joined together such that at least one channel (24) is defined therebetween, which channel selectively permits gas flow from the first opening out of the device/valve. In operation, the valve selectively opens to permit gas flow through the channel in response to a pressure differential on opposing sides of the valve, wherein the pressure differential sufficient to open the valve ( Po) dynamically varies over time. Suitably, a material is arranged in the channel which experiences a change that precipitates the dynamic variation of Po.
Bibliography:Application Number: US201314433124