Metal working – Method of mechanical manufacture – With separating – localizing – or eliminating of as-cast...
Reexamination Certificate
2006-08-29
2006-08-29
Compton, Eric (Department: 3726)
Metal working
Method of mechanical manufacture
With separating, localizing, or eliminating of as-cast...
C029S526500, C029S557000, C029S888000, C192S070140, C451S054000, C451S055000, C451S056000
Reexamination Certificate
active
07096561
ABSTRACT:
A separator plate useful in a wet-type multiplate clutch is provided on a friction surface thereof with elongated asperities extending with regularity in a predetermined direction. Peak portions of the elongated asperities, said peak portions being to project toward a counterpart member when the separator plate is assembled in the wet-type multiplate clutch, have been removed to form elongated plateaus. The separator plate can be manufactured by fixedly mounting a blank for the separator plate on a work support, forming elongated asperities with regularity in a predetermined direction on one of opposite surfaces of the blank by a grinding wheel, and then removing peak portions of the elongated asperities, said peak portions being to project toward a counterpart member when the separator plate is assembled in the wet-type multiplate clutch, to form elongated plateaus.
REFERENCES:
patent: 4516443 (1985-05-01), Hamano et al.
patent: 4736828 (1988-04-01), Diessner
patent: 6311815 (2001-11-01), Riggle
patent: 6544632 (2003-04-01), Umezawa et al.
patent: 63-043038 (1988-02-01), None
patent: 63-049303 (1988-03-01), None
patent: 63-084740 (1988-04-01), None
patent: 6337023 (1994-12-01), None
Kinpara Hiroyuki
Sakabe Masaki
Compton Eric
Crowell & Moring LLP
NSK-Warner K.K.
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