Abstract: A drinking mouth portion pointing upward is provided on a plug body of a container main body having a sealed structure. A down-pointing beverage cylindrical member is built into the container main body and has a front edge side thereof communicated with the drinking mouth portion. Provided inside a fluid passage of the beverage cylindrical member is a valve movable in accordance with a pressure difference therein. The valve is not manually opened and closed, but reacts to a suction force in the fluid passage. An up-pointing cut-out section is provided on a lower edge of the beverage cylindrical member, thus allowing one to drink up a content fluid remaining in an inner bottom section. Therefore, a relatively small number of additional parts are needed to address the spewing of a content fluid and the occurrence of a residual liquid at the time of opening the drinking mouth portion.

Abstract: A sealing glass of the present invention is a sealing glass for vacuum sealing an exhaust opening provided in a metal-made vacuum double container, wherein the sealing glass is used in a metal-made vacuum double container having a structure that the sealing glass is placed in a position excepting a position right over the exhaust opening in a vacuum sealing process, the sealing glass is substantially free of a Pb component, and the sealing glass produces a total amount of gases of 900 to 7000 ?L/cm3 when a temperature is raised from 30° C. to 700° C. at 15° C./minute in a vacuum state.

Abstract: A heat insulated container, in which the presence of this heat insulation performance can be confirmed from the outward appearance. In a heat insulated container formed by coating a radiation preventing film on at least one surface of an external surface of an internal glass container and an internal surface of an external glass container, disposing the internal container inside the external container with a gap provided therebetween, joining the internal container and the external container, and evacuating the gap to a vacuum and sealing it, an average particle diameter of particles on the surface of the radiation preventing film is made a predetermined value or more. According to the heat insulated container, since the average particle diameter of the particles on the surface of the radiation preventing film is a predetermined value or more, sufficient heat retaining performance can be obtained.

Abstract: A heat insulated container preventing a pad from scratching the side surfaces of containers, from peeling off a radiation preventing film and from creating a heat transfer path that promotes heat transfer. The heat insulated container is formed as follows: interposing a positioning jig between an internal container and an upper external container member of an external container comprising the upper external container member and a lower external container member to form a gap of a preset dimension therebetween; joining together an opening of the upper external container member and the opening of the internal container and removing the positioning jig from the gap; and then joining together the upper external container member and the lower external container member and evacuating the gap between the external container and the internal container to a vacuum and sealing the same.

Abstract: A lifting pipe for a pump-type liquid container includes a draw-up pipe for drawing a liquid within a liquid container main body; a pouring pipe for communicating between the draw-up pipe and an exterior; and a safety valve mechanism for stanching the liquid when the liquid container main body is overturned. The safety valve mechanism comprises a case main body and a valve retainer having a safety valve. The case main body is decomposable and communicates between the draw-up pipe and the pouring pipe. The valve retainer is removably fitted within the case main body.