Stoves and furnaces – Heaters – Chemical
Patent
1989-03-20
1990-02-13
Jones, Larry
Stoves and furnaces
Heaters
Chemical
422245, 72362, 604291, F24J 100, B21D 2200
Patent
active
048997277
ABSTRACT:
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.
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patent: 4077390 (1978-03-01), Stanley et al.
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patent: 4572158 (1986-02-01), Fielder
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Kapralis Guntars I.
Kapralis Janis E.
Lowther Jeralynn
Haefliger William W.
Jones Larry
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