Thermal measuring and testing – Temperature measurement – Nonelectrical – nonmagnetic – or nonmechanical temperature...
Patent
1986-03-03
1987-09-29
Yasich, Daniel M.
Thermal measuring and testing
Temperature measurement
Nonelectrical, nonmagnetic, or nonmechanical temperature...
374 17, 426 88, 426383, 426407, 436 1, G01K 1112, G01N 2500
Patent
active
046965807
ABSTRACT:
A can container made of soft material such as aluminum having a wall thickness of less than 0.2 mm is used for low acid foods or drinks having pH of more than 5.0. A controlled quantity of liquified nitrogen is introduced into the can filled with the low acid foods or drinks and then the can is hermetically sealed off by double-seaming. The liquid nitrogen is soon gasified in the sealed can to increase internal pressure of the can to a level sufficient to prevent the can from being deformed. Then the can is subjected to retort sterilization treatment at a predetermined high steam temperature for a predetermined period of time for sterilization of any possible bacilli and bacteria in the low acid foods or drinks in the can. Prior to retort sterilization treatment, a thermal sensitive paint is applied to the can, which will change color when exposed to a steam of a predetermined temperature for a predetermined period. Unchanged color of the thermal sensitive paint will mean a possibility that the low acid foods or drinks fail to be effectively sterilized and contain numerous bacilli and bacteria. Deformed can means insufficient internal pressure created therein caused by incomplete sealing of the can.
REFERENCES:
patent: 1924793 (1933-08-01), Laske
patent: 2251345 (1941-08-01), Triplett
patent: 3290922 (1966-12-01), Thompson
patent: 3360337 (1967-12-01), Edenbaum et al.
patent: 3568627 (1971-03-01), Flushing
patent: 3667916 (1972-06-01), Sliva et al.
patent: 3734276 (1973-05-01), Bank
patent: 3736861 (1973-06-01), Kroyer et al.
patent: 4148223 (1979-04-01), Disinski
patent: 4280441 (1981-07-01), McNeely
patent: 4292916 (1981-10-01), Bradley et al.
patent: 4424990 (1984-01-01), White et al.
National Can Corporation
Rath Ralph R.
Stenzel Robert A.
Yasich Daniel M.
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