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 01:48
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.
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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 |