Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2006-12-05
2006-12-05
Zimmerman, John J. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S659000, C428S632000, C428S935000, C205S217000, C205S245000, C205S318000, C205S196000, C148S253000, C427S406000
Reexamination Certificate
active
07144637
ABSTRACT:
The present invention provides a black, chrome-free, multilayer corrosion protection finish designed to meet extended corrosion properties. This corrosion-resistant finish is engineered to meet a minimum of 500 salt spray testing hours to white corrosion, and 1500 salt spray testing hours to red corrosion when tested to ASTM B117 standards. It is also designed to comply with the European Union Directive on End of Life Vehicles. This multilayer system is designed for use on automotive body sheet steel, automotive underbody parts, automotive under-hood parts, and some automotive interior parts specifying a gloss requirement greater than 4. This chrome-free, multilayer finish is a combination of a zinc-iron electroplated substrate, a non-electrolytic phosphate crystal conversion layer using orthophosphoric acid, and a Xylan/Teflon fluorocarbon sealer coating to form a three layer total corrosion protection system.
REFERENCES:
patent: 4009093 (1977-02-01), Luch
patent: 4093522 (1978-06-01), Dillenberg
patent: 4141803 (1979-02-01), Barclay et al.
patent: 4392920 (1983-07-01), McDonald
patent: 4429020 (1984-01-01), Luch
patent: 4472249 (1984-09-01), Chessin
patent: 4543300 (1985-09-01), Hara et al.
patent: 4603092 (1986-07-01), Luch
patent: 4608130 (1986-08-01), Shimizu et al.
patent: 4629659 (1986-12-01), Kyono et al.
patent: 4643952 (1987-02-01), Kurakata
patent: 4720400 (1988-01-01), Manniso
patent: 4835066 (1989-05-01), Taisuke et al.
patent: 4968391 (1990-11-01), Saito et al.
patent: 4984855 (1991-01-01), Horiuti et al.
patent: 5023146 (1991-06-01), Saito et al.
patent: 5067990 (1991-11-01), Ribitch
patent: 5074957 (1991-12-01), Horiuti et al.
patent: 5082748 (1992-01-01), Ahn et al.
patent: 5225067 (1993-07-01), Sagiyama et al.
patent: 5236574 (1993-08-01), Oshima et al.
patent: 5240783 (1993-08-01), Kurimoto et al.
patent: 5271823 (1993-12-01), Schachameyer et al.
patent: 5316652 (1994-05-01), Sagiyama et al.
patent: 5429881 (1995-07-01), Aono et al.
patent: 5435898 (1995-07-01), Commander et al.
patent: 5565042 (1996-10-01), Sakurai et al.
patent: 5714047 (1998-02-01), Pedrazzini
patent: 5867883 (1999-02-01), Iorio et al.
patent: 5876517 (1999-03-01), Jeannier
patent: 5885373 (1999-03-01), Sienkowski
patent: 6146021 (2000-11-01), Ward
patent: 6318898 (2001-11-01), Ward et al.
patent: 6417292 (2002-07-01), Moriarity et al.
patent: 6500886 (2002-12-01), Yamamuro et al.
patent: 6562474 (2003-05-01), Yoshimi et al.
patent: 6720032 (2004-04-01), Kuhm et al.
patent: 2001/0001965 (2001-05-01), Miyoshi et al.
patent: 2002/0000379 (2002-01-01), Matsuda et al.
Coating World, Detroit's Big Three All Specify Xylan 5230, New Chromium-Free Fastener-Class Coating, vol. II, Oct. 2002, 2 pages.
Meroni & Meroni P.C.
Meroni, Jr. Charles F.
Scott Christopher J.
Zimmerman John J.
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