Heated basin
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United States of America Patent
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Oct 30, 1990
Grant Date -
N/A
app pub date -
Oct 10, 1989
filing date -
Oct 10, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus for warming a sterile liquid includes a basin with a heater assembly, a base surrounding the basin, and an electronic temperature controller. The shape of the basin bottom includes an plateau-like elevated central region and a depressed surrounding rim. The heater assembly is of a thin-film type, and provides relatively greater heating in the central region than in the outer region. Both the heater geometry and the shape of the basin bottom promote a natural and uniform convective flow of the liquid to promote mixing of the warmer and cooler portions of the liquid. The temperature controller allows the user to select the temperature that the liquid is to be warmed to, and provides visual and aural indications of liquid or basin temperatures which exceed reasonable pre-set limits. The controller also halts the flow of electrical current to the heater assembly when an overtemperature problem in the liquid or the basin is detected. A disposable cable connects the temperature controller to the basin.
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