Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – With carbonizing – then adding carbonizable material and...
Reexamination Certificate
2011-08-16
2011-08-16
Johnson, Christina (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
With carbonizing, then adding carbonizable material and...
C264S103000, C264S029100
Reexamination Certificate
active
07998376
ABSTRACT:
Method for producing carbon-carbon composite brake discs by: (a) providing annular nonwoven carbon fiber brake disc preforms; (b) carbonizing the brake disc preforms; (c) densifying the carbonized preforms by CVD/CVI (chemical vapor deposition/chemical vapor infiltration); (d) densifying the products of step (c) with isotropic or mesophase pitch by VPI (vacuum pitch infiltration) or RTM (resin transfer molding) processing; (e) carbonizing the preforms to remove non-carbon volatiles from the pitch and to open porosity in the pitch-infused preforms; (f) densifying the products of step (e) with isotropic or mesophase pitch by VPI or RTM processing; (g) carbonizing the preforms to remove non-carbon volatiles from pitch and to open porosity in the pitch-infused preforms; and (h) heat-treating the resulting pitch-densified carbon-carbon composite brake disc preforms. This manufacturing approach reduces lot-to-lot variability in friction performance of the resulting carbon-carbon composite brake discs.
REFERENCES:
patent: 5654059 (1997-08-01), Hecht
patent: 5770127 (1998-06-01), Abrams et al.
patent: 5837081 (1998-11-01), Ting et al.
patent: 6323160 (2001-11-01), Murdie et al.
patent: 6325608 (2001-12-01), Shivakumar et al.
patent: 6342171 (2002-01-01), Murdie et al.
patent: 6537470 (2003-03-01), Wood et al.
patent: 6939490 (2005-09-01), La Forest et al.
patent: 7063870 (2006-06-01), La Forest et al.
patent: 7172408 (2007-02-01), Wood et al.
patent: 7234571 (2007-06-01), Wood et al.
patent: 7252499 (2007-08-01), LaForest et al.
patent: 2003/0111752 (2003-06-01), Wood et al.
patent: 2003/0214064 (2003-11-01), Shin et al.
patent: 2005/0093188 (2005-05-01), Forest et al.
patent: 2006/0151912 (2006-07-01), Bauer
patent: 2006/0177663 (2006-08-01), Simpson et al.
patent: 2006/0197244 (2006-09-01), Simpson et al.
patent: 2006/0244165 (2006-11-01), Huang
patent: 2006/0261504 (2006-11-01), Simpson et al.
patent: 2006/0279012 (2006-12-01), Simpson et al.
patent: 2009/0194895 (2009-08-01), La Forest et al.
patent: 1 731 292 (2006-12-01), None
patent: 98/27023 (1998-06-01), None
patent: WO-02/18120 (2002-03-01), None
patent: WO-2005/116476 (2005-12-01), None
patent: 2006/086167 (2006-08-01), None
patent: WO-2006/115755 (2006-11-01), None
U.S. Appl. No. 12/036,881, titled “CVI Followed by Coal Tar Pitch Densification by VPI”, filed Feb. 25, 2008.
European Search Report from corresponding EP Application No. 09151681.5, mailed Jun. 25, 2009, 6 pages.
Oh et al., Effects of Matrix Structure on Mechanical Properties of Carbon/Carbon Composites, Carbon, vol. 26, No. 6, pp. 769-776, 1988.
Pierson et al., “The Chemical Vapor Deposition of Carbon on Carbon Fibers,” Carbon, 1973, vol. 13, pp. 159-166, Pergamon Press.
La Forest Mark L.
Murdie Neil
Simpson Allen H.
Honeywell International , Inc.
Johnson Christina
Shumaker & Sieffert P.A.
Thrower Larry
LandOfFree
Method for reducing variability in friction performance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for reducing variability in friction performance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing variability in friction performance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2649516