Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Ptfe
Reexamination Certificate
2004-07-28
2008-07-22
McAvoy, Ellen M. (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Ptfe
C508S181000, C508S539000, C508S552000, C508S582000, C384S013000
Reexamination Certificate
active
07402550
ABSTRACT:
A rolling bearing holding two or more rolling elements13between inner ring10and outer ring11in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.
REFERENCES:
patent: 4941987 (1990-07-01), Strepparola et al.
patent: 5840666 (1998-11-01), Yokouchi et al.
patent: 5910470 (1999-06-01), Minami et al.
patent: 5948737 (1999-09-01), Srinivasan et al.
patent: 6329326 (2001-12-01), Iso et al.
patent: 6444621 (2002-09-01), Okaniwa et al.
patent: 2002/0072477 (2002-06-01), Ikejima et al.
patent: 2003/0013617 (2003-01-01), Howell et al.
patent: 07-268370 (1995-10-01), None
patent: 11-228985 (1999-08-01), None
patent: 11-246886 (1999-09-01), None
patent: 2000-273478 (2000-03-01), None
patent: 2000-328083 (2000-11-01), None
McAvoy Ellen M.
NSK Ltd.
Sughrue & Mion, PLLC
LandOfFree
Rolling bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rolling bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rolling bearing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3968135