Bearings – Rotary bearing – Antifriction bearing
Reexamination Certificate
2007-07-17
2010-11-16
Charles, Marcus (Department: 3656)
Bearings
Rotary bearing
Antifriction bearing
C384S548000, C384S569000, C384S580000
Reexamination Certificate
active
07832943
ABSTRACT:
A roller bearing cage includes annular portions provided respectively at opposite ends thereof, a plurality of pillar portions interconnecting the annular portions, a plurality of pockets for respectively holding needle rollers, and roller retaining portions formed respectively on circumferentially-opposed wall surfaces and of each pocket portion. A concave groove smaller in width than the pillar portion is formed axially in a back surface of each pillar portion and those portion of back surfaces of the annular portions disposed respectively at opposite ends of each pillar portion. Separation groove portions are formed respectively at opposite sides of those portions of the concave groove disposed respectively at the opposite ends of the pillar portion, and extend respectively to corresponding circumferentially-opposite side surfaces of the pillar portion, and each separation groove portion separates the corresponding roller retaining portion and annular portion from each other.
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European Search Report dated Jun. 4, 2009.
Notification of Reason(s) for Refusal dated Jun. 15, 2010, with English translation.
Charles Marcus
JTEKT Corporation
McGinn IP Law Group PLLC
LandOfFree
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