Patent ID: 8220451
Filing Date: 2012-07-17
Classification: F24V

Abstract:
1. A gelling agent heating unit, comprising: a case member for storing a gel container having gelling agents therein and a portable heating element which can heat without receiving power supply from an outside, said portable heating element being inserted between said case member and an outside surface of said gel container; and projections which are located at portions between said stored portable heating element and said case member where said projections partially contact with said portable heating element so as to reduce a degree of close contact between said portable heating element and said case member when said portable heating element is stored in said case member; whereby said projections form a first air passage in a first direction along said stored portable heating element by extending said projections in said first direction, and form a second air passage in a direction along said stored portable heating element, a second direction almost perpendicular to said first direction.