Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Heavy metal or aluminum in an organic phosphorus compound...
Reexamination Certificate
2005-12-15
2011-11-15
Caldarola, Glenn (Department: 1771)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Heavy metal or aluminum in an organic phosphorus compound...
C508S110000, C508S463000, C508S378000, C508S474000, C508S552000, C384S462000
Reexamination Certificate
active
08058216
ABSTRACT:
The present invention provides a grease composition capable of securely preventing an abnormal noise from being generated when it is cold and having a long life at a high temperature, and a rolling bearing in which this grease is enclosed. The grease composition having heat-resistant properties and performance of preventing the generation of a low-temperature abnormal noise contains a base oil, a thickener, and an additive, and is used for a rolling bearing. A worked penetration of the grease composition at 25° C. is 300 or less, and an unworked penetration thereof at −20° C. is 200 or more. The grease-enclosed rolling bearing has an inner ring, an outer ring, rolling elements interposed between the inner ring and the outer ring, and the above-described grease composition enclosed on a periphery of the rolling elements. The grease-enclosed rolling bearing is used for an automotive electric auxiliary machine.
REFERENCES:
patent: 4661276 (1987-04-01), Stemke
patent: 4859352 (1989-08-01), Waynick
patent: 5840666 (1998-11-01), Yokouchi et al.
patent: 5858934 (1999-01-01), Wiggins et al.
patent: 5910470 (1999-06-01), Minami et al.
patent: 5915844 (1999-06-01), Nanbu et al.
patent: 6329327 (2001-12-01), Tanaka et al.
patent: 6396018 (2002-05-01), Kinoshita et al.
patent: 6682223 (2004-01-01), Sugimori et al.
patent: 2002/0137639 (2002-09-01), Asao et al.
patent: 2004/0242439 (2004-12-01), Mikami et al.
patent: 2005/0009713 (2005-01-01), Kohara et al.
patent: 2005/0250653 (2005-11-01), Iso et al.
patent: 197 47 113 (1998-04-01), None
patent: 1510569 (2005-03-01), None
patent: 03-179094 (1991-08-01), None
patent: 04-153297 (1992-05-01), None
patent: 11-228983 (1993-08-01), None
patent: 08-176578 (1996-07-01), None
patent: 10-130682 (1998-05-01), None
patent: 11-270566 (1999-10-01), None
patent: 2000-248290 (2000-09-01), None
patent: 2001-107073 (2001-04-01), None
patent: 2002-105474 (2002-04-01), None
patent: 2002-363588 (2002-12-01), None
patent: 2003-106338 (2003-04-01), None
patent: 2003-342593 (2003-12-01), None
patent: 2004-169790 (2004-06-01), None
patent: 2006-77119 (2006-03-01), None
International Search Report, Mar. 7, 2006.
EP Search Report, Dated Mar. 16, 2009.
Caldarola Glenn
Costigan James V.
Hedman & Costigan ,P.C.
NTN Corporation
Vasisth Vishal
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