Volatile material expiration indicating system

An indicator system with a dispenser providing controlled release of a volatile material contained within a dispenser, which indicates the exhaustion of the volatile material. The dispenser includes a blister that contains a vapor permeable membrane that collapses on a bottom wall due to internal va...

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Bibliographische Detailangaben
1. Verfasser:	MARTENS, III EDWARD J
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES 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 DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	An indicator system with a dispenser providing controlled release of a volatile material contained within a dispenser, which indicates the exhaustion of the volatile material. The dispenser includes a blister that contains a vapor permeable membrane that collapses on a bottom wall due to internal vacuum forces created by the evacuation of volatile material. As the membrane collapses the remaining volatile material migrates to the periphery of the dispenser thereby indicating exhaustion of the volatile material.