Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Reexamination Certificate
2006-10-10
2006-10-10
Patel, Vishal (Department: 3673)
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
C277S442000, C029S888300
Reexamination Certificate
active
07117594
ABSTRACT:
A piston oil control ring with at least one tapered running rail, provided with a wear-resistant coating, characterized in that a radial elevation with predetermined radial height and width, which is provided with the wear-resistant coating, is provided in the region of the tapered ring plane for the running rail.
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Federal-Mogul Burscheid GmbH
Patel Vishal
Smith Stuart I.
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