Abstract: A heat exchanger of the present invention is for cooling a high-pressure gas, and includes: a frame in which a single curved cooling medium flow path is formed by providing a plurality of partitioning plates parallel to one another; a single curved cooling pipe that is provided inside the cooling medium flow path via a space interval, wherein a cooling medium is flowed through the cooling medium flow path, and the high-pressure gas is flowed through the cooling pipe.

Abstract: A nozzle unit is attached onto the lower side of a bottom plate of a plug body. A fin and a pair of side plates protrude from the nozzle unit. The fin is arranged below and apart from the liquid-passage hole in the bottom plate in horizontal direction. The side plates are arranged in vertical direction, and put the liquid-passage hole and the fin between them. When a hot drink is poured into the container body to increase the inner pressure of the container body, the fin and the side plates can obstruct the exhausting flow rate of the inner pressure so that the inner pressure cannot be exhausted rapidly. When the fin is bent towards the liquid-passage hole due to the increased inner pressure, the inner pressure can be exhausted efficiently according to its magnitude.

Abstract: A travel mug includes a vessel 10 defined by two shells 14, 16 nested within one another and spaced from each other to define an insulating space 18. Both have open upper ends 20, 22 that are joined in an annular upper end joint 24. An annular shoulder gasket 26 is located on the joint 24 and an annular shoulder 30 is mounted on one of the shells 14, 16 to cover the shoulder gasket 26. The shoulder has a radially inwardly directed gross sealing surface 40 near a lower edge as well as a radially inner thread 42. A lid 12 is removably threaded on the shoulder 30 and has an annular side wall 56 merging with a bottom wall 52 having an imperforate center 52. An array of sip holes 66 is located at the point 58 of merger of the walls 52, 56, and are aligned with the gross sealing surface 40 to be closed thereby when the lid 12 is fully threaded into the vessel 10.