A process for making gaskets consists in forming, in the body, holes regularly distributed along each line intended to receive a sealing element, in effecting, by stamping, the formation of a groove along each line intended to receive a sealing element, and in effecting the molding of sealing elements in each groove which the body comprises.

Process for manufacturing a gasket comprising a metal body equipped with at least one flexible sealing element

An electronic weapon impedes locomotion by a target by conducting a current through an electrode and through the target to produce contractions in skeletal muscles of the target that impede locomotion by the target. The weapon may include a deployment unit to deploy one or more electrodes away from the apparatus toward the target. The deployment unit may include an electrically fired primer, a first cavity, a second cavity, and a partition. The first cavity may include a pyrotechnic charge that produces a gas at an increasing pressure when ignited by the primer. The partition between the first cavity and the second cavity opens, in response to the pressure increasing to a threshold magnitude in the first cavity, to propel the electrode from the second cavity by a sudden release of the pressure.

Systems and methods for deploying electrodes for electronic weaponry

A method and apparatus for upsetting forged bars to form compressor vane blanks are disclosed which utilize a two-stage upsetting process. In a first stage, the rough forged bar is placed in a first die having a first enlarged cross sectional area such that the end of the bar to be upset extends into the enlarged cross sectional area of the die. The enlarged cross sectional area is shaped so as to have at least three lines of contact with the bar segment during lateral expansion of the bar. In a second upsetting stage, the expanded bar is removed from the first die and inserted into a second die, also defining an enlarged cross sectional area portion such that the expanded portion of the bar extends into the enlarged cross sectional area of the second die. The second enlarged cross sectional area has a cross sectional shape so as to accommodate the previously enlarged portion of the bar such that at least one line of contact is maintained between the bar and the die as the bar laterally expands.

Method and apparatus for upsetting forged bars

A dual stream thin edge orifice disk is defined as a disk having a pair of orifices positioned to direct the flow of fluid from the interior portion of a valve into two different streams. The dual streams may be parallel or typically diverge at an angle for directing the stream to two adjacent engine valves in the situation wherein the valve is in electromagnetic fuel injector for an internal combustion engine. To have the dual streams flow in a direction that is not parallel, the area of the disk surrounding the dual orifices is embossed and the orifices are positioned along the sides of the embossment between the base and the apex thereof. The manufacturing of the accurately sized orifices in the disk is accomplished by means of a progressive die. One of the stations of the die provides a coining operation on the orifice. Such coining operation is adjustable by means of a micrometer adjustment. Another of the stations provides a forming operation wherein an embossment is formed in such a manner that the orifices are positioned on the sides of the embossment between the base and the apex. In another embodiment of a valve, a pair of dual orifice disks are positioned adjacent each other with the orifices of the first disk overlapping the orifices of the second disk.

Method of making multi-stream thin edge orifice disks for valves

A blank for a sheet metal forming process having a part portion surrounded by a peripheral portion. The peripheral portion has a portion thereof which is discontinuous whereby scrap is minimized.

Blanks for sheet material forming process

In a process for producing metallic objects by stamping blanks located side-by-side in echelon formation in a metal strip which is then advanced through shaping means for executing shaping operations there is provided blanks to be stamped by cutting said strip along portions of the true peripheries of the objects so that said blanks remain connected to spacer web portions of said strip solely by connecting elements maintaining said blanks within said strip during the subsequent shaping operations and until final separation of the finished objects.

Stamping process for metal objects

A priming chamber for a cartridge comprising a cylindrical tubular body one end of which is closed by a bottom formed with vent holes arranged around an axially and inwardly extending pressed part forming an anvil, the anvil being of tapered shape having two integral parts of which the lower part is fixed to a flat portion of the bottom of the tubular body, whereas the upper part terminates in an upper outer flat end.

Priming chamber for cartridges

The flat sheets are arranged in a metal band, deep-drawn in the shape of dishes or bowls, separated from the metal band, reintroduced at the same place in such a way that the blank is held by the metal band and deformed further The finished product is expelled from the band

Single-plant production of metal bowe

A method is provided for manufacturing discs or other metal parts of circular or similar cross section from metal wire, according to which the wire is cut into portions of a predetermined length, then each portion is introduced individually along its longitudinal axis into a prismatic housing in a first matrix to be subjected to a first press forging. The prismatic blank is then withdrawn from the first matrix and is inserted into a cavity having the cross-sectional shape of the final object to be produced. The cavity provided in the second matrix subjects the blank to a final press forging to produce the final shape of the fabricated part.

Andre Maigret

Papers

Stamping process for metal objects

Priming chamber for cartridges

Single-plant production of metal bowe

Method for manufacturing discs from wire

Procédé d'emboutissage de flans métalliques