Abrading – Abrading process – Utilizing fluent abradant
Reexamination Certificate
2006-05-09
2006-05-09
Wilson, Lee D. (Department: 3723)
Abrading
Abrading process
Utilizing fluent abradant
C451S039000, C451S040000, C451S005000, C451S102000, C083S053000, C083S177000, C239S310000, C239S318000, C239SDIG002
Reexamination Certificate
active
07040959
ABSTRACT:
An abrasive jet apparatus is provided which includes an abrasive dispenser defining a compartment for storing a granular abrasive material and at least one metering orifice disposed in open communication therewith for dispensing the granular abrasive material. The apparatus also includes a shutter assembly disposed adjacent the metering orifice, which includes a shutter member angularly displaceable between first and second positions relative to the metering orifice. The shutter member has formed therethrough at least one shutter opening which in the first position is substantially fully aligned with the metering orifice, and in the second position is substantially fully offset therefrom. The apparatus further includes a position actuator operatively coupled to the shutter mechanism for reversibly displacing the shutter member to the first and second positions and a plurality of intermediate positions therebetween for occluding a selective portion of the metering orifice. A flow rate of the abrasive material dispensed through said metering orifice is thereby maintained at a predetermined level.
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Bachman Wesley
Hammer Joseph
Hammer Ronald
Panuska Brian R.
Illumina, Inc.
Murphy John T.
Ojini Anthony
Wilson Lee D.
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