Patent ID: 8387820

Claim:
A travel mug for microwave oven, comprising: a container ( 1 ) having a double-layered structure with an inner shell ( 2 ) and an outer shell ( 3 ), wherein said inner shell ( 2 ) and said outer shell ( 3 ) are joined by a joint ( 4 ) in such a way that a cavity ( 5 ) is provided therebetween, and a heat transfer medium ( 11 ) is filled to at least part of said cavity ( 5 ); a first heat transfer member ( 21 ) and a second transfer member ( 22 ) formed from the bottom of said outer shell ( 3 ); a handle ( 30 ) formed on one side of said outer shell ( 3 ); a pressure release device ( 40 ) formed at one side of said outer shell ( 3 ); and a lid ( 50 ) having a receiver part ( 54 ) forming a concave portion to receive said joint ( 4 ), wherein said pressure release device ( 40 ) is installed inside the handle ( 30 ) on one side of the outer shell and comprises a bracket ( 41 ) fixedly installed with a fixing part at one side of the handle ( 30 ), and a valve member ( 45 ) installed within the bracket ( 41 ), wherein said valve member ( 45 ) comprises a body ( 45 - 1 ) being hollow and cylindrical, a neck ( 45 - 2 ), being hollow and cylindrical, with a smallest outer diameter and with its length being the same as the thickness of the outer shell ( 3 ), and a head ( 45 - 3 ) being tapered forwardly, said neck ( 45 - 2 ) being inserted into an opening ( 43 ) formed on the outer shell ( 3 ).