Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1992-08-11
1994-09-06
Bartis, Anthony
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
119 73, 219436, 219438, 219449, 392444, H05B 102, H05B 300, A01K 501, A47J 3100
Patent
active
053450639
ABSTRACT:
An electrically heated molded plastic pet feeding bowl capable of being interengagedly stacked in nested relationship with similar bowls for shipment or storage has a removable electric heating unit insertable through an open bottom of the bowl into heat exchange relationship with the bottom wall of an open-top bowl cavity holding food or water to be heated. The removable heating unit includes a bottom base having an electric heating element disposed on its upper side electctrically connected to and surrounding a centrally located thermostatic control on the upper side of the bottom base. The bottom base has an upwardly convex shape for ensuring that the heating element and thermostatic control are in proper heat transfer relationship with the bottom wall of the bowl when the heating unit is installed on bowl. The under side of the bottom base has a plurality of posts about which a flexible electrical cord for supplying power to the heating element can be wound for storage within the open bottom of the bowl. A series of spaced tapered wedges on the bottom base cooperate with corresponding apertures on the bowl to removably secure the heating unit to thereto.
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Hassell Frank A.
Owen Donald B.
Reusche Donald W.
Reusche Thomas K.
Allied Precision Industries Inc.
Bartis Anthony
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