Damper and process thereof

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Reexamination Certificate

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C428S141000, C428S147000, C428S148000, C428S220000, C428S447000, C428S544000, C428S551000, C428S625000, C074S574300, C188S378000, C188S379000, C049S009000

Reexamination Certificate



A fitting type damper and a process thereof being capable of increasing largely slipping torque in strength are ones that the large slipping torque can be increased not only when the damper is a new product but also after a heat aging test and/or a durability test are performed. And, the damper is one that γ-mercaptopropyltrimethoxysilane4, which is an organosilane used as a non-slip agent, is adhered and fitted between a hub1formed by some metal parts and a rubber elastic body3, and between a inertia mass body2formed by some metal parts and the rubber elastic body3.

patent: 5437937 (1995-08-01), Cayless
patent: 5789080 (1998-08-01), Grimberg et al.
patent: 5966996 (1999-10-01), Hamaekers
patent: 3893775 (2000-04-01), Yotani et al.
patent: 0 398 470 (1990-11-01), None
patent: 0 435 781 (1991-07-01), None
patent: 02085543 (1990-03-01), None
patent: 03297637 (1991-12-01), None
patent: 05329980 (1993-12-01), None
patent: 0615773 (1994-01-01), None
patent: 06171009 (1994-06-01), None
patent: 06171010 (1994-06-01), None
patent: 06171011 (1994-06-01), None
patent: 06171012 (1994-06-01), None
patent: WO 99/20705 (1999-04-01), None


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