A valve of the type wherein a valve member having a passageway therethrough is rotatably mounted within a valve body or housing having inlet and outlet passages. The valve body is provided with one or more raised portions on its interior surface which serve to firmly engage or bias the valve member when it is rotated to the closed position, thereby preventing leakage be the valve member and the body. In the manufacture of such a valve in accordance with the method of the present invention, the v...

An ammunition such as a defensive grenade comprising an explosive body with preestablished fragmentation, a cartridge case and a fuse, said body acting as a support for the inner wall, the edge rotating band, the cartridge case and the fuse.

A valve having seats made of axially separable, inner and outer parts which may be moved to positions, during assembly of the valve, permitting adjacent parts of the valve body to be welded and the weldments to be stress relieved without damage to seal rings carried by the seats.

A method for producing a tinplate cylindrical container with a bottom end having a thick walled upper portion by drawing and ironing in which the wall of the main part of the container body near the bottom end is made thick while the wall thereof near the upper portion is made thin, and in which the gradient angle or taper representing the variation of the wall thickness of the container main body part is made smaller than that of the punch core of the ironing means so as to make it possible to ...

A cup-shaped metal can containing a thermostatic switch unit is mounted in an opening in the bottom of a cup-shaped plastic jacket, and has two terminals which project into the jacket and which have lead wires connected thereto. The wires extend out through notched openings in the side of the jacket, and are retained in those openings by a ring member which seats on the open end of the jacket and which has a diametral web at opposite sides of which the lead wires are disposed. The can has a flar...

Technological tooling in which a die comprises a female die member provided with similar spherical hollows uniformly distributed along a circumference and removable balls placed into the hollows, with the balls having a radius equal to that of the hollows. The die is made by embossing spherical hollows by means of the balls placed into prefabricated centering recesses between two coaxial blanks of the female dies which are subjected to axial squeezing in several stages, in which case the blanks ...

An improved beater for home use and a method for making it are disclosed. A cross-like piece is formed with an opening through its hub and slipped over and attached between the ends of a thin shaft. The elongated arms of the cross-like piece form the blades which are bent and attached at the bottom of the shaft.

There is disclosed a shoe having an outsole of elastic material in which the connection between the outsole and the insole is interrupted at least in that area of the insole that underlies the ball portion of a wearer's foot. According to the invention, the interruption of the connection is accomplished by cutting out such area of such insole to leave an opening that is filled with elastic outsole forming material. There is further disclosed a method of making such a shoe in which an upper joine...

A hermetically sealed package and method of making the same which package includes a breakaway or peelable seal formed between an ethylene-polar monomer copolymer film or coating material, such as, ethylene-vinyl acetate, and a thermoplastic film, such as, polyvinylidene chloride. Preferably, during seal formation, the seal interface is heated to a temperature between the melt temperatures of the film materials which make up the seal to provide improved sealing without destroying the breakaway p...

A filter is made by bonding and molding a granular activated carbon within a frame of U-shaped channels. The bonded activated carbon body may be reinforced with a wire or other network, and may contain holes or areas of reduced thickness to minimize pressure drop.