Metal treatment – Stock – Ferrous
Reexamination Certificate
2011-08-30
2011-08-30
Wyszomierski, George (Department: 1733)
Metal treatment
Stock
Ferrous
C280S124106, C267S188000
Reexamination Certificate
active
08007601
ABSTRACT:
A method for producing a tubular bar, more particularly a stabilizer bar, is provided. The method comprises providing a tubular bar of desired size having an outer and inner surface, heating the bar to an elevated temperature, quenching the bar by application of a cooling fluid to the surfaces of the bar, and forming the tube to a desired shape without annealing. The method further provides for the composition of a high-strength, high formability carbon steel alloy to be used in conjunction with the method. Advantageously, the bar is formable without thermal processing subsequent to quenching. In this fashion, metal tubular bars, such as stabilizer bars, may be formed at reduced cost.
REFERENCES:
patent: 4231555 (1980-11-01), Saito
patent: 4336081 (1982-06-01), Hijikata et al.
patent: 4376528 (1983-03-01), Ohshimatani et al.
patent: 4526628 (1985-07-01), Ohno et al.
patent: 5538566 (1996-07-01), Gallagher
patent: 5598735 (1997-02-01), Saito et al.
patent: 6196530 (2001-03-01), Muhr et al.
patent: 6311965 (2001-11-01), Muhr et al.
patent: 6384388 (2002-05-01), Anderson et al.
patent: 6682610 (2004-01-01), Inoue
patent: 7744708 (2007-09-01), Lopez et al.
patent: 7862667 (2009-01-01), Turconi et al.
patent: 2004/0131876 (2004-07-01), Ohgami et al.
patent: 2004/0139780 (2004-07-01), Cai et al.
patent: 2005/0087269 (2005-04-01), Merwin
patent: 2006/0243355 (2006-11-01), Haiderer et al.
patent: 2008/0314481 (2008-12-01), Garcia et al.
patent: 2010/0068549 (2010-03-01), Agazzi et al.
patent: 2010/0294401 (2010-11-01), Gomez et al.
patent: 2010/0319814 (2010-12-01), Perez et al.
patent: 0 092 815 (1983-11-01), None
patent: 0 753 595 (1997-01-01), None
patent: 753595 (1997-01-01), None
patent: 1 717 324 (2006-11-01), None
patent: 06-093339 (1994-04-01), None
patent: 2001-164338 (2001-06-01), None
patent: 2004-011009 (2004-01-01), None
U.S. Appl. No. 11/375,660, filed Mar. 14, 2006 (published as 2007/0216126 A1) and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
U.S. Appl. No. 12/042,145, filed Mar. 4, 2008 (published as 2009/0010794 A1)and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
U.S. Appl. No. 11/997,900, filed Jun. 18, 2008 (published as 2008/0314481 A1) and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
U.S. Appl. No. 12/306,917, filed Nov. 2, 2009 (published as 2010/0068549 A1) and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
U.S. Appl. No. 12/743,801, filed Aug. 9, 2010 (published as 2010/0294401 A1) and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
Beretta, Stefano et al., “Fatigue Assessment of Tubular Automotive Components in Presence of Inhomogeneities”, Proceedings of IMECE2004, ASME International Mechanical Engineering Congress, Nov. 13-19, 2004, pp. 1-8.
Prevéy, Paul, et al., “Introduction of Residual Stresses to Enhance Fatigue Performance in the Initial Design”, Proceedings of Turbo Expo 2004, Jun. 14-17, 2004, pp. 1-9.
U.S. Appl. No. 12/486,610, filed Jun. 17, 2009 and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
U.S. Appl. No. 12/979,058, filed Dec. 27, 2010 and its ongoing prosecution history, including without limitation Office Actions, Amendments, Remarks, and any other potentially relevant documents.
Wegst, C. W., “Stahlschlüsell”, Auflage 1989, Seite 119, Published 1989.
Mechanical Tubing and Cold Finishing, Metals Handbook Desk Edition, (2000), 5 pages.
International Search Report and Written Opinion for PCT/IB2007/001995 (corresponding to U.S. Appl. No. 11/375,660) dated Dec. 21, 2007.
International Preliminary Report on Patentability for PCT/IB2007/001995 (corresponding to PCT Application to U.S. Appl. No. 11/375,660) dated Jul. 17, 2008.
Corrected International Preliminary Report on Patentability for PCT/IB2007/001995 (corresponding to PCT Application to U.S. Appl. No. 11/375,660) dated Sep. 10, 2008.
English Translation of JP 2001-164338 to Sato et al., published Jun. 2001, 31 pages.
Caserta Lorenzo Vito
Desimone Hernán Juan
López Edgardo Oscar
Salazar Cuauhtémoc Martinez
Knobbe Martens Olson & Bear LLP
Shevin Mark L
Tenaris Connections Limited
Wyszomierski George
LandOfFree
Methods of producing high-strength metal tubular bars... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods of producing high-strength metal tubular bars..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of producing high-strength metal tubular bars... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2647700