Abrading – Abrading process – Combined abrading
Reexamination Certificate
2006-12-05
2006-12-05
Nguyen, Dung Van (Department: 3723)
Abrading
Abrading process
Combined abrading
C451S390000, C451S391000, C451S384000
Reexamination Certificate
active
07144306
ABSTRACT:
An apparatus for cylindrically grinding workpieces includes a first holding tool (100) for positioning pre-grinding workpieces (60) and a second holding tool (200) for positioning partially ground workpieces (i.e. workpieces which have been ground on one side only). The first holding tool defines a first groove (12) for containing the pre-grinding workpieces to be partially ground and the second bonding defines a second groove (22) for containing the partially ground workpieces. A stopping board (23) connects one side of the second groove, and the stopping board has a projection (231) for transferring the partially ground workpieces from the first groove to the second groove. The present invention also provides a process for cylindrically grinding workpieces.
REFERENCES:
patent: 1336928 (1920-04-01), Simmons
patent: 4445678 (1984-05-01), George
patent: 4583432 (1986-04-01), Bricker
patent: 5305557 (1994-04-01), Warncke
patent: 6554265 (2003-04-01), Andronica
Hon Hai Precision Industry Co. LTD
Knapp Jeffrey T.
Nguyen Dung Van
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