Bearings – Rotary bearing – Antifriction bearing
Reexamination Certificate
2011-08-02
2011-08-02
Hannon, Thomas R (Department: 3656)
Bearings
Rotary bearing
Antifriction bearing
C384S530000
Reexamination Certificate
active
07988365
ABSTRACT:
A cage used in a ball bearing assembly is rendered to be of a ring shape having a plurality of pockets defined therein to hold a corresponding number of balls in a circumferential row. The radius of a bore of a circumferentially extending body of the cage as measured from the geometric center of the bore to an inner peripheral surface area of the circumferentially extending body aligned with each of the pockets is chosen to be greater than the radius as measured from the geometric center of the bore to a different inner peripheral surface area of the circumferentially extending body intermediate between the neighboring pockets.
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patent: 6692156 (2004-02-01), Ohura et al.
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International Preliminary Report on Patentability mailed on Sep. 18, 2008 and issued in corresponding International Patent Application No. PCT/JP2007/000092.
Chinese Office Action issued in corresponding Chinese Patent Application 200780008244.2.
First Chinese Office Action issued in corresponding Chinese Patent Application 200780008244.2.
Second Chinese Office Action issued in corresponding Chinese Patent Application 200780008244.2.
Third Office Action issued in corresponding Chinese Patent Application 200780008244.2.
International Search Report of International Application No. PCT/JP2007/000092 (mailed May 22, 2007).
Sakaguchi Tomoya
Sato Norihide
Hannon Thomas R
Johnson Phillip A
NTN Corporation
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