Piston seal member and disc brake using the piston seal member

Details Piston seal member and disc brake using the piston seal member Piston seal member and disc brake using the piston seal member

2008-02-21

2011-10-18

Siconolfi, Robert (Department: 3657)

Brakes

Wheel

Axially movable brake element or housing therefor

C188S071100, C524S496000, C092S168000, C277S540000, C277S434000, C277S438000

Reexamination Certificate

active

08037975

ABSTRACT:
The piston seal member is formed of a crosslinked rubber composition, the rubber composition including 100 parts by weight of an ethylene-propylene rubber, 20 to 60 parts by weight of a first carbon black, 50 to 100 parts by weight of a second carbon black, and 5 to 20 parts by weight of carbon nanofiber having an average diameter of 0.5 to 500 nm, the total amount of the first carbon black and the second carbon black being 70 to 160 parts by weight. The first carbon black has an average particle diameter of 35 to 100 nm and a DBP absorption of 50 to 200 ml/100 g. The second carbon black has an average particle diameter that is greater than the average particle diameter of the first carbon black and ranges from 60 to 500 nm and a DBP absorption of 5 to 50 ml/100 g.

REFERENCES:
patent: 3438932 (1969-04-01), Sieron
patent: 3562195 (1971-02-01), Reiner et al.
patent: 4161239 (1979-07-01), Karasudani
patent: 4524677 (1985-06-01), Ashman et al.
patent: 4858516 (1989-08-01), Klein
patent: 5076593 (1991-12-01), Sullivan et al.
patent: 5252659 (1993-10-01), Koizumi et al.
patent: 5260111 (1993-11-01), Valaitis et al.
patent: 5728766 (1998-03-01), Schauder et al.
patent: 6046806 (2000-04-01), Thompson
patent: 6274665 (2001-08-01), Ono et al.
patent: 6642291 (2003-11-01), Chino et al.
patent: 6784255 (2004-08-01), Nakahama et al.
patent: 6881770 (2005-04-01), Mizuno et al.
patent: 2004/0256187 (2004-12-01), Noguchi et al.
patent: 2005/0027060 (2005-02-01), Yagi et al.
patent: 2005/0096424 (2005-05-01), Otsuji et al.
patent: 2007/0256903 (2007-11-01), Noguchi et al.
patent: 1 469 240 (2004-10-01), None
patent: 1050021 (1966-12-01), None
patent: 2 119 874 (1983-11-01), None
patent: A-1-108289 (1989-04-01), None
patent: B2-3-59291 (1991-09-01), None
patent: A-7-508770 (1995-09-01), None
patent: 11-153168 (1999-06-01), None
patent: A-2000-241736 (2000-09-01), None
patent: A-2002-348424 (2002-12-01), None
patent: A-2003-160692 (2003-06-01), None
patent: A-2003-253067 (2003-09-01), None
patent: A-2004-232786 (2004-08-01), None
patent: A-2004-316773 (2004-11-01), None
patent: 117023 (2001-09-01), None
patent: WO 92/07207 (1992-04-01), None
patent: WO 01/07516 (2001-02-01), None

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