US4376683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the partial galvanization of surfaces which are conducting or have been made conducting
Assignee: Siemens AG
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Filing: 1981-03-30
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Granted: 1983-03-15
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Expires: 2001-03-30
Abstract
Abstract Method and device for the partial galvanization of a surface of a conductive material is disclosed. A flow-on channel and a flow-off channel are positioned at an angle relative to the surface at less than 45° and arranged to direct the electrolyte solution at an angle onto the surface to be treated. The electrolyte is removed at an angle to the surface by the flow-off channel such that on the surface to be treated a substantially laminar flow arises. The flow-on channel and flow-off channel are constructed of a corrosion-resistant material. A metallic anode element is arranged in at least one of the flow-on and flow-off channels adjacent the area to be treated.
Inventors
- 👤 Hubertus Hellwig
- 👤 Hans-Joachim Schuster
- 👤 Klaus-Dieter Heppner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/02; C25D5/08; H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/241; H05K3/243
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
153 words
A method for the partial galvanization of a surface of a conductive material, comprising the steps of: supplying an electrolyte solution for use in depositing a metal or its alloy on the surface to be galvanized; providing a flow-on channel for supplying the electrolyte solution and a flow-off channel positioned at an angle relative to the surface to be treated of less than 45°; positioning the two channels to direct the electrolyte solution onto the surface to be treated such that a substantially laminar flow arises across the surface from the flow-on channel to the flow-off channel; providing the flow-on and flow-off channels of a corrosion-resistant material; and arranging a metallic anode element in each of the flow-on and flow-off channels directly adjacent to the area of which the surface to be treated is to be located, and providing the anode elements with a tunnel-like shape through which the electrolyte solution may flow.
Claim 2
Independent Claim
153 words
A method for the partial galvanization of a surface of a conductive material, comprising the steps of: supplying an electrolyte solution for use in depositing a metal or its alloy on the surface to be galvanized; providing a flow-on channel for supplying the electrolyte solution and a flow-off channel positioned at an angle relative to the surface to be treated of less than 45°; positioning the two channels to direct the electrolyte solution onto the surface to be treated such that a substantially laminar flow arises across the surface from the flow-on channel to the flow-off channel; providing the flow-on and flow-off channels of a corrosion-resistant material; and arranging a metallic anode element in each of the flow-on and flow-off channels directly adjacent to the area of which the surface to be treated is to be located, and providing the anode elements with a tunnel-like shape through which the electrolyte solution may flow.
Claim 3
Independent Claim
129 words
A device for the partial galvanization of a surface of a material which is or has been made conducting, comprising: an electrolyte solution for use in depositing a metal or its alloy on the surface to be galvanized; a flow-on channel and a flow-off channel positioned at an angle relative to the surface of less than 45° and arranged to direct the electrolyte solution at an angle onto the surface to be treated where it is removed at an angle to the surface by the flow-off channel such that on the surface to be treated a substantially laminar flow arises; the flow-on channel and flow-off channel each being constructed of a corrosion-resistant material; and a metallic anode element arranged in at least one of the flow-on and flow-off channels.
Claim 4
Independent Claim
129 words
A device for the partial galvanization of a surface of a material which is or has been made conducting, comprising: an electrolyte solution for use in depositing a metal or its alloy on the surface to be galvanized; a flow-on channel and a flow-off channel positioned at an angle relative to the surface of less than 45° and arranged to direct the electrolyte solution at an angle onto the surface to be treated where it is removed at an angle to the surface by the flow-off channel such that on the surface to be treated a substantially laminar flow arises; the flow-on channel and flow-off channel each being constructed of a corrosion-resistant material; and a metallic anode element arranged in at least one of the flow-on and flow-off channels.
Claim 5
Dependent Claim
24 words
A device according to claim 2 wherein a cross-section of the flow-off channel is at least equal to a cross-section of the flow-on channel.
Claim 6
Dependent Claim
20 words
A device according to claim 2 wherein an anode element is arranged in each of the flow-on and flow-off channels.
Claim 7
Dependent Claim
32 words
A device according to claim 2 wherein the flow-on and flow-off channels are circular in cross-section and the anode element is designed in the shape of an at least partial tube section.
Claim 8
Dependent Claim
39 words
A device according to claim 2 wherein the flow channels are rectangular in cross section and a wall of at least one of the flow channels which lies opposite the surface to be coated has an anode associated therewith.
Claim 9
Independent Claim
156 words
A device for the partial galvanization of a surface of a conductive material, comprising: means for supplying an electrolyte solution for use in depositing a metal or its alloy on the surface to be galvanized; a flow-on channel connected to said means for supplying and a flow-off channel positioned at an angle relative to the surface to be treated of less than 45°, the two channels being positioned to direct the electrolyte solution onto the surface to be treated such that a substantially laminar flow arises across the surface from the flow-on channel to the flow-off channel; the flow-on channel and the flow-off channel each being constructed of a corrosion-resistant material; and a metallic anode element arranged in each of the flow-on and flow-off channels directly adjacent to the area at which the surface to be treated is to be located, each of said anode elements having a tunnel-like shape through which the electrolyte solution flows.
Claim 10
Independent Claim
156 words
A device for the partial galvanization of a surface of a conductive material, comprising: means for supplying an electrolyte solution for use in depositing a metal or its alloy on the surface to be galvanized; a flow-on channel connected to said means for supplying and a flow-off channel positioned at an angle relative to the surface to be treated of less than 45°, the two channels being positioned to direct the electrolyte solution onto the surface to be treated such that a substantially laminar flow arises across the surface from the flow-on channel to the flow-off channel; the flow-on channel and the flow-off channel each being constructed of a corrosion-resistant material; and a metallic anode element arranged in each of the flow-on and flow-off channels directly adjacent to the area at which the surface to be treated is to be located, each of said anode elements having a tunnel-like shape through which the electrolyte solution flows.
Claim 11
Dependent Claim
31 words
A device according to claim 7 wherein each of the sleeve-like anodes has an end adjacent the surface to be galvanized shaped so as to provide a specific layer thickness distribution.
Claim 12
Dependent Claim
12 words
A device according to claim 7 wherein the corrosion-resistant material comprises teflon.
Claim 13
Dependent Claim
35 words
A device according to claim 7 wherein each of the channels has a substantially circular cross-section and each of the anodes comprises a tube aligned within the channel and through which the electrolyte solution flows.
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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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |