IMPERFORATE GROOVE TRIGGER

An economically fabricated trigger for initiating crystallization of supercooled solutions in flexible plastic containers, the trigger comprising a thin substantially imperforate metallic strip having a perimeter bounding a generally dish-shaped or concave portion, the strip further having a plurali...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LOWTHER, JERALYNN, KAPRALIS, JANIS E, KAPRALIS, GUNTARS I
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDEDFOR HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	An economically fabricated trigger for initiating crystallization of supercooled solutions in flexible plastic containers, the trigger comprising a thin substantially imperforate metallic strip having a perimeter bounding a generally dish-shaped or concave portion, the strip further having a plurality of spaced, generally parallel, generally V-shaped elongated grooves formed inwardly from the perimeter, the strip being imperforate at the groove, with the centermost portion substantially free of grooves, the strip having two configurations between which it is distortable or bendable with snap-displacement causing the initiation of progressive exothermic crystallization of said salt in the solution, the strip metal being typically impacted during fabrication to impact orient the molecular structure so as to aid the functioning of the disc or strip to produce or initiate crystallization.