Patent US4237192A successfully refreshed from Google Patents.
US4237192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc plated steel plate and can produced from the same
Assignee: Nippon Steel Nisshin Co Ltd
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Filing: 1979-01-30
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Granted: 1980-12-02
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Expires: 1999-01-30
Abstract
Abstract This invention relates to a zinc plated steel plate, at least one side surface of which is substantially free from oxides and coated with an anti-rust film, and a can produced from said zinc plated steel plate having an interlocking seam joint bonded by soldering techniques.
Inventors
- 👤 Takehiko Ito
- 👤 Yusuke Hirose
- 👤 Hideaki Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:14
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/004; B65; B65D; B65D7/00; B65D7/12; B65D7/34; C; C23; C23C; C23C2/00; C23C2/26; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
129 words
A zinc-plated steel plate having improved solderability prepared by plating a steel plate with zinc from a zinc bath containing at least 0.1% by wt of aluminum, removing the oxides from the surface of the thus-plated steel plate such that the surface, up to a depth of 200 Angstroms, is substantially free from oxides to such a degree that the ratio of the aluminum ion detection intensity (I Al +)/zinc ion detection intensity (I Zn +) is not higher than 20 at the maximum as measured by a microanalyzer, and coating the thus-treated surface with an anti-rust film selected from the group consisting of an acryl type resin, petroleum type wax and an alkyd type resin to such an extent that the film has a thickness of 1.0-20 microns.
Claim 2
Dependent Claim
129 words
A zinc-plated steel plate having improved solderability prepared by plating a steel plate with zinc from a zinc bath containing at least 0.1% by wt of aluminum, removing the oxides from the surface of the thus-plated steel plate such that the surface, up to a depth of 200 Angstroms, is substantially free from oxides to such a degree that the ratio of the aluminum ion detection intensity (I Al +)/zinc ion detection intensity (I Zn +) is not higher than 20 at the maximum as measured by a microanalyzer, and coating the thus-treated surface with an anti-rust film selected from the group consisting of an acryl type resin, petroleum type wax and an alkyd type resin to such an extent that the film has a thickness of 1.0-20 microns.
Claim 3
Dependent Claim
21 words
A zinc-plated steel plate according to claim 1, wherein said petroleum type wax anti-rust film has a thickness of 2.0-20 μm.
Claim 4
Dependent Claim
21 words
A zinc-plated steel plate according to claim 1, wherein said alkyd type resin anti-rust film has a thickness of 1.0-15 μm.
Claim 5
Dependent Claim
31 words
A zinc-plated steel plate according to claim 1, wherein said zinc plated steel plate is a galvanized steel plate, a zinc electroplated steel plate or a zinc vapour deposited steel plate.
References Cited (Backward Citations)
US1268987A
Cited
US2142024A
Cited
US2175972A
Cited
US2407881A
Cited
US2412528A
Cited
US3108709A
Cited
US3674445A
Cited
FR2009716A1
Cited
JPS4911735A
Cited
AU481742B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |