Dispenser which incrementally heats fluids with substantial non-volatile constituent parts
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United States of America Patent
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Nov 6, 2001
Issued Date -
N/A
app pub date -
Nov 22, 1999
filing date -
Apr 6, 1998
priority date (Note) -
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Abstract
The present invention discloses a method and apparatus for quickly heating a predetermined volume of viscous fluid and dispensing it efficiently at one or more selected temperatures. The viscous fluid includes substantial non-volatile constituent parts. In one embodiment, the predetermined volume of viscous fluid is partially housed in a predelivery chamber separate from the main fluid reservoir. A heater assembly heats the viscous fluid in the predelivery chamber in a short time period and in small volumes to prevent overheating and adversely effecting the composition of the viscous fluid. To avoid continually heating the viscous liquid, a timer circuit is used in one embodiment.
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