Abstract: A wet friction member contains a pulverized cork heated to 150-200° C. if necessary. The pulverized cork is mixed with other papermaking materials and formed into a paper-made substrate. The paper-made substrate is impregnated with a synthetic resin to be a binder and heated and cured. The cork itself has a high friction coefficient ?. Moreover, a powder thereof increases surface area and area in contact with a separator plate of a counter member, thereby improving a friction coefficient of a friction surface of the wet friction member. The friction coefficient of the cork itself and capacities for absorbing and discharging oil are improved by heating the cork. Thus, there is provided a wet friction member that has a higher friction coefficient ?. An increase in the friction coefficient ?, weight reduction by reducing the number of friction members, and high efficiency are achieved when used as a wet friction member.

Abstract: A wet friction member contains a pulverized cork heated to 150-200° C. if necessary. The pulverized cork is mixed with other papermaking materials and formed into a paper-made substrate. The paper-made substrate is impregnated with a synthetic resin to be a binder and heated and cured. The cork itself has a high friction coefficient ?. Moreover, a powder thereof increases surface area and area in contact with a separator plate of a counter member, thereby improving a friction coefficient of a friction surface of the wet friction member. The friction coefficient of the cork itself and capacities for absorbing and discharging oil are improved by heating the cork. Thus, there is provided a wet friction member that has a higher friction coefficient ?. An increase in the friction coefficient ?, weight reduction by reducing the number of friction members, and high efficiency are achieved when used as a wet friction member.

Abstract: The portable thermos receptacle has a receptacle main body containing an inner shell, an outer shell and a heat-insulating section defined between the inner shell and the outer shell, and a cover removably applied to an opening of the receptacle main body. The thermos receptacle has on the outer shell non-slip means over a zone covering both a center of gravity when the receptacle is full and a center of gravity when the receptacle is empty. The portable. thermos receptacle has a cylindrical shape which reduces toward the top or bottom. The non-slip means is a recess, ridge or corrugated portion which is formed integrally with the outer shell or a synthetic resin non-slip member attached to the outer shell.

Abstract: In the present invention, in a method of fabricating a metal vessel formed by expanding in hydraulic bulge formation a cylinder having a bottom, wherein a flat plate material is formed into a cylinder, the edges welded, and a bottom member welded to one open part of the cylindrical shell member, the stationary point of the expanded part of the shell member is made the expanding part side from the shell member—bottom member weld of the cylinder with a bottom, and thereby by expanding the shell part on the opening side, a metal vessel is formed, and thus the time of the processing itself of a plurality of expanding process of press-working and ironing and transiting of moving from one step to the next can be completed by one step, decreasing the time and reducing the cost.

Abstract: The portable thermos receptacle has a receptacle main body containing an inner shell, an outer shell and a heat-insulating section defined between the inner shell and the outer shell, and a cover removably applied to an opening of the receptacle main body. The thermos receptacle has on the outer shell non-slip means over a zone covering both a center of gravity when the receptacle is full and a center of gravity when the receptacle is empty. The portable thermos receptacle has a cylindrical shape which reduces toward the top or bottom. The non-slip means is a recess, ridge or corrugated portion which is formed integrally with the outer shell or a synthetic resin non-slip member attached to the outer shell.

Abstract: The portable thermos receptacle has a receptacle main body containing an inner shell, an outer shell and a heat-insulating section defined between the inner shell and the outer shell, and a cover removably applied to an opening of the receptacle main body. The thermos receptacle has on the outer shell non-slip means over a zone covering both a center of gravity when the receptacle is full and a center of gravity when the receptacle is empty. The portable thermos receptacle has a cylindrical shape which reduces toward the top or bottom. The non-slip means is a recess, ridge or corrugated portion which is formed integrally with the outer shell or a synthetic resin non-slip member attached to the outer shell.

Abstract: In the present invention, in a method of fabricating a metal vessel formed by expanding in hydraulic bulge formation a cylinder having a bottom, wherein a flat plate material is formed into a cylinder, the edges welded, and a bottom member welded to one open part of the cylindrical shell member, the stationary point of the expanded part of the shell member is made the expanding part side from the shell member—bottom member weld of the cylinder with a bottom, and thereby by expanding the shell part on the opening side, a metal vessel is formed, and thus the time of the processing itself of a plurality of expanding process of press-working and ironing and transiting of moving from one step to the next can be completed by one step, decreasing the time and reducing the cost.

Abstract: In the present invention, in a method of fabricating a metal vessel formed by expanding in hydraulic bulge formation a cylinder having a bottom, wherein a flat plate material is formed into a cylinder, the edges welded, and a bottom member welded to one open part of the cylindrical shell member, the stationary point of the expanded part of the shell member is made the expanding part side from the shell member—bottom member weld of the cylinder with a bottom, and thereby by expanding the shell part on the opening side, a metal vessel is formed, and thus the time of the processing itself of a plurality of expanding process of press-working and ironing and transiting of moving from one step to the next can be completed by one step, decreasing the time and reducing the cost.

Abstract: The portable insulating receptacle has a receptacle main body containing an inner shell, an outer shell and a heat-insulating section defined between the inner shell and the outer shell, and a cover removably applied to an opening of the receptacle main body. The insulating receptacle has on the outer shell non-slip means over a zone covering both a center of gravity when the receptacle is full and a center of gravity when the receptacle is empty. The portable insulating receptacle has a cylindrical shape which reduces toward the top or bottom. The non-slip means is a recess, ridge or corrugated portion which is formed integrally with the outer shell or a synthetic resin non-slip member attached to the outer shell.

Abstract: A drinking receptacle cover to be removably applied to an opening of a receptacle main body. This cover has on its top plate a drinking spout which can be shut off and a negative pressure relief valve. The spout contains a drinking spout main body which protrudes from the top plate and has a channel; a drinking spout portion which is fitted on the drinking spout main body to be shiftable in the axial direction so as to open and close the channel; and a drinking spout cap which can be removably applied to the drinking spout portion; and the channel can be opened and closed by the shift of the drinking spout portion which occurs with fitting and removal of the drinking spout cap.

Abstract: A heat-insulating container comprising a cylindrical container having a heat-insulating layer disposed between a metal inner cylinder and a metal outer cylinder; a synthetic resin inner case with a wide mouth, in the straight cylindrical container; and a cap for closing the upper opening of the straight cylindrical container. The cap has a heat-insulating plug member fitted in the mouth of the inner case, with a plug member having an inner surface provided with an engagement portion for abutting the upper peripheral edge of a large-diameter container placed in inner case and a recess of a small-diameter storage container placed in the inner case, the inner case having a bottom provided with an engagement portion, which abuts the lower peripheral edge of the large-diameter storage container and a recess for receiving the lower portion of the small-diameter storage container.

Abstract: A heat insulating cooking vessel includes a heat insulating outer container, an inner container which is releasably housed in the outer container, and a heat insulating lid member for closing the opening portion of the outer container when the inner container is housed in the outer container. The inner container is formed shallower than the outer container so that the inner container is positioned below the opening portion of the outer container when housed in the outer container. The side wall of the inner container has at least one handle, each handle being composed of a tang portion extending upward and a grip portion arranged on the tip of the tang portion. The heat insulating lid member of the outer container has at least one cutout into by which the handle of the inner container can be inserted.

Abstract: A portable water purifier comprises an outer elongated hollow body having openings formed at the upper and lower portions, a cup adapted to be inserted in the outer elongated hollow body from the lower opening thereof, a filtering elongated hollow body adapted to be inserted in the cup from the upper opening of the outer elongated hollow body, and a cap fitted detachably on the upper portion of the outer elongated hollow body to cover this upper opening. The cup and the filtering elongated hollow body are accommodated in the outer elongated hollow body when the portable water purifier is not used in a portable manner. When this portable water purifier is used, the cup is pulled out from the outer elongated hollow body and is set under the outer elongated hollow body, so that water is poured from the upepr opening of the outer elongated hollow body and is filtered through a filter in the filtering elongated hollow body. The filtered water is stored in the cup.