Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Reexamination Certificate
2007-01-23
2007-01-23
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Tank or container type liquid heater
C392S451000, C099S331000
Reexamination Certificate
active
11345841
ABSTRACT:
Apparatuses and methods for heating foodstuffs, or other contents sensitive to high heat flux, such as sauces and gravies, without sticking; so that watching and stirring of the foodstuff is not needed during heating. The novel apparatuses and methods provide such heating in a relatively quick time, such as one hour. A pitcher is shown which sets into a heating unit fitted with a heating element below a baffle that shields the bottom of the pitcher from radiant heat and has apertures which cause favorable convective heating which reduces the risk of sticking. The pitcher or pot is easily installed and removed from the heating unit and a close fit is formed in the installed position to retain heat between the pitcher and heating vessel. The methods include inducing a convective heat flow with the baffle and reduced direct radiant heat to reduce or prevent sticking.
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Walter Drake catalog or website, One-Quart Crockpot/Mini Slow Cooker, catalog p. 68; also website, Dec. 2005, USA.
Campbell Thor S.
Gregory Randy A.
Gregory I.P. Law
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