Galvanized steel sheet, method for manufacturing the same, and method for manufacturing press-formed product

Patent 6797411 Issued on September 28, 2004. Estimated Expiration Date:

June 18, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3787191

Dual open cycle heat pump and engine
Patent #: 4326388
Issued on: 04/27/1982
Inventor: McFee

Turkey nest timer
Patent #: 5125362
Issued on: 06/30/1992
Inventor: Erickson, et al.

Process of forming phosphate coatings on metal surfaces
Patent #: 5203930
Issued on: 04/20/1993
Inventor: Blumlhuber, et al.

Colorgalv galvanizing process Patent #: 5641543
Issued on: 06/24/1997
Inventor: Brooks

Inventors

Application

No. 10465461 filed on 06/18/2003

US Classes:

428/659, Next to Fe-base component (e.g., galvanized)428/687, Surface feature (e.g., rough, mirror)428/632, Oxide-containing component427/433, Lead, zinc, or tin coating (e.g., galvanizing, etc.)427/349Metal coating

Examiners

Primary: Zimmerman, John J.

Attorney, Agent or Firm

Frishauf, Holtz, Goodman & Chick, P.C.

Foreign Patent References

658472 CH 11/01/1986
56-36318 JP 04/01/1981
56-144777 JP 11/01/1981
57-114611 JP 07/01/1982
62-253780 JP 11/01/1987
63-166953 JP 07/01/1988
4-83860 JP 03/01/1992
5-15901 JP 01/01/1993
6-75728 JP 09/01/1994
7-124604 JP 05/01/1995
7-136701 JP 05/01/1995
10-130803 JP 05/01/1998
11-302816 JP 11/01/1999
2000-160354 JP 06/01/2000
2001-234314 JP 08/01/2001

International Classes

B21D 2202
B21D 2220
B24C 106
C22C 226
C22C 2207

Abstract

The method for manufacturing galvanized steel sheet has a step of adjusting the surface texture thereof by blasting solid particles against the surface thereof. The surface texture is defined by at least one parameter selected from the group of parameters consisting of mean roughness Ra on the surface of steel sheet, peak count PPI on the surface of steel sheet, and filtered centerline waviness Wca on the surface of steel sheet. The galvanized steel sheet has a surface in dimple-pattern texture.

Other References

English language translation of Japanese Kokai Patent Application No. Sho 63[1988]-166953, published Jul. 11, 1988, translation is 9 pages.*
JIS B 0601, “Definitions and Designation of Surface Roughness” (English language version), pp. 91-101 (1982).
SAE 911 Standard, “10 Ferrous and Nonferrous—General”, pp. 10.01 and 10.02 and contents page of 1978 SAE Handbood Contents Part 1.
W. Zimnick et al, “Pretex-Ein neues Verfahren zur Erzeugung texturierter Feinbleche . . . ”, Stahl and Eisen 118, Nr. 3, pp. 75-80 (1998).