Metal deforming – With cutting – By shearing tool-couple
Reexamination Certificate
2007-02-20
2007-02-20
Crane, Daniel C. (Department: 3725)
Metal deforming
With cutting
By shearing tool-couple
C029S893330, C192S070140
Reexamination Certificate
active
10973680
ABSTRACT:
Stamped and deburred clutch discs (20a,20b) are provided by progressive stamping apparatus (46) whose method of use performs a two step stamping of the clutch disc blank and a third deburring stamping step that removes burrs on opposite axial faces by contact in opposite directions.
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patent: 5737956 (1998-04-01), Takahashi et al.
patent: 5779018 (1998-07-01), Hofmann et al.
patent: 6212930 (2001-04-01), Skrabs et al.
patent: 6223578 (2001-05-01), Kamijo
Brooks & Kushman P.C.
Crane Daniel C.
Means Industries Inc.
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