Abrading – Abrading process – Utilizing fluent abradant
Reexamination Certificate
2007-08-14
2007-08-14
Ackun, Jr., Jacob K. (Department: 3723)
Abrading
Abrading process
Utilizing fluent abradant
C451S060000, C451S113000, C451S385000
Reexamination Certificate
active
11365755
ABSTRACT:
An abrasive flow apparatus for polishing a workpiece wherein a horizontal machine tool is adapted such that a workpiece may be secured to first shaft rotatable about a first longitudinal axis. A conjugate form to the workpiece may be secured to a second shaft which is rotatable about a second longitudinal axis. The workpiece and conjugate form are secured to each shaft in a manner such that they are facing one another and slightly set apart to define a gap. A flowable abrasive media is introduced within this gap. The centerlines of the workpiece and the conjugate form are offset from one another such that rotation of the shafts in the same direction and at the same rotational speed produces relative motion between the workpiece and the conjugate form thereby polishing the workpiece. A slide may be used for axially positioning the first shaft and the second shaft a predetermined distance to define the size of the gap. A feeder may be used for introducing flowable abrasive media within a work zone defined by the volume of the gap between the workpiece and the conjugal form.
REFERENCES:
patent: 6152805 (2000-11-01), Takahashi
patent: 6390903 (2002-05-01), Takahashi et al.
patent: 2004/0209554 (2004-10-01), Tsumagari et al.
Ackun Jr. Jacob K.
Extrude Hone Corporation
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