Patent ID: 6626737
Filing Date: 2003-09-30
Classification: B24C

Abstract:
System for producing and propelling solid sublimable particles, said system comprising at least:a first means for producing solid sublimable particles; a second means connected to said first means, said second means receiving solid sublimable particles produced by said first means and propelling said solid sublimable particles towards an outlet, and at least one duct extending between the first means and the second means for conveying solid sublimable particles produced by the first means to the second means, in which the first means for producing solid sublimable particles comprises at least:a container with a first opening and a second lower opening associated to a cutting plate, said first opening being adapted for placing sublimable material in the container above the cutting plate, means for driving into rotation the cutting plate, and a funnel attached to the container, said funnel having a lower end connected to the duct conveying the solid sublimable particles to the second means, and an upper end, at which the cutting plate forms a separation between the funnel and the lower opening of the container, whereby the cutting plate has a lower face directed towards the funnel and an upper face intended to be directed towards the sublimable material placed in the container and is provided with at least one line of cutting teeth, each cutting tooth being associated to at least one passage extending through the plate, whereby, when the cutting plate driven in rotation contacts sublimable material placed in the container, the cutting teeth are adapted for producing solid sublimable particles with an average weight size smaller than about 6 mm, said solid sublimable particles passing directly through the cutting plate into the funnel.