Commissariat a L'energie Atomique

Michel Ferard

Paul Marchal

Claude Bourdois

Frederic Sgarbi

Maurice Decolle

Tanguy De Kervenouel

Silviu Vais

Device for machining contours (2) made of a soft material, such as plastic, and essentially including a rotary tool (6) constituted by abrasive elastic plates (5) whose flexibility makes it possible to dampen the jerks of the member (33) bearing the tool (6). Preferably, a pneumatic motor (9) and a speedometer (10) are used to automatically control the tool (6) at a constant speed guaranteeing a stable machining or cutting force. The method for the automatic machining of flexible burrs on a contour formed of a soft material, is also described.

Device for machining of contours made of a soft material and automatic

The present invention is a device for contouring blocking burrs for a milling cutter. The penumatic broach or spindle is equipped with a tachometer, which controls the reversal of the supply of a pneumatic jack connecting the spindle to the wrist or handle of the robot as soon as the rotation speed of the cutter drops below a threshold value. The blocking burrs are then cut off by means of successive passes.

Device for contouring blocking burrs for a deburring tool

Process for the pneumatic transfer of a pulverulent material contained in a cylindrical container, wherein it comprises the introduction, via a sealed passage located in the upper part and in the axis of the container, of a suction member which is movable in translation along said axis and having at its suction end located in the container an annular nozzle which is able to direct a gas jet towards the walls of the container so as to ensure the scavenging of said walls during suction, the level of said annular nozzle in the container being maintained constantly above the level of the pulverulent material contained therein until all the material has been sucked out, including that on the bottom of the container. The process is performed by an apparatus for the pneumatic transfer of a pulverulent material comprising a cylindrical container containing the pulverulent material and pneumatic extraction duct for emptying the container. As a result of the invention it is possible to extract all the material contained in a container, particularly when the material is of a clogging or tacky nature.

Process for the pneumatic transfer of a pulverulent material

Apparatus for the separation and recovery of a solid product transported by a gas, wherein said apparatus comprises at least one filter cartridge made from a rigid porous material mounted in a sealed enclosure and defining in the latter a first filter chamber within the at least one cartridge and which communicates by its lower end with a tube for the collection of the separated solid product and a second chamber for the collection of the filtered gas outside the said at least one cartridge, the latter having two large-surface opposite porous walls maintained with an appropriate spacing by spacers fixed on the said walls and disposed in the filter chamber in such a way as to form deflectors, means for introducing the gas transporting the solid product to be separated into the said filter chamber and means for extracting the filtered gas from the collection chamber.

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Sartrouville, France

Michel Ferard