US3943048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder anode
Assignee: Huntington Alloys Corp
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Filing: 1973-02-26
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Granted: 1976-03-09
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Expires: 1993-02-26
Abstract
Abstract A consumable electroplating anode comprises a compacted mass of metal powder having an additive dispersed throughout the mass, having an electrically conductive path through the mass and the mass having a density in excess of about 70% of theoretical density. The metal can be nickel, cobalt, iron, copper, cadmium or any other metal available in powder form and usable as a consumable anode. The additive can be either a solid or a liquid and can be an anode activator and/or a bath component. A specific structure wherein the additive is held by the metal in a compressed state at abnormally high density is also disclosed.
Inventors
- 👤 Gordon L. Fisher
- 👤 Calvin R. Cupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:24
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
70 words
A consumable electroplating anode comprising a cold compacted mass of powder of electrodepositable metal selected from the group consisting of nickel, cobalt, iron, copper, chromium, platinum, palladium, cadmium, zinc, tin and alloys and mixtures thereof having a. at least one additive from the group consisting of electrode activators and electroplating bath additives dispersed therethrough b. a continuous metallic path therethrough and c. a density of at least 70% of theoretical.
Claim 2
Dependent Claim
70 words
A consumable electroplating anode comprising a cold compacted mass of powder of electrodepositable metal selected from the group consisting of nickel, cobalt, iron, copper, chromium, platinum, palladium, cadmium, zinc, tin and alloys and mixtures thereof having a. at least one additive from the group consisting of electrode activators and electroplating bath additives dispersed therethrough b. a continuous metallic path therethrough and c. a density of at least 70% of theoretical.
Claim 3
Dependent Claim
22 words
A consumable electroplating anode as in claim 1 wherein the additive comprises about 0.1% to about 70% by weight of the anode.
Claim 4
Dependent Claim
14 words
A consumable electroplating anode as in claim 1 wherein the electrodepositable metal is nickel.
Claim 5
Dependent Claim
14 words
A consumable electroplating anode as in claim 1 wherein the electrodepositable metal is copper.
Claim 6
Dependent Claim
14 words
A consumable electroplating anode as in claim 1 wherein the electrodepositable metal is cadmium.
Claim 7
Dependent Claim
15 words
A consumable electroplating anode as in claim 1 wherein the additive is an electrode activator.
Claim 8
Dependent Claim
16 words
A consumable electroplating anode as in claim 1 wherein the additive is an electroplating bath component.
Claim 9
Dependent Claim
29 words
A consumable electroplating anode as in claim 1 wherein the additive is a solid present in the anode in an amount of about 0.1% to about 70% by weight.
Claim 10
Dependent Claim
21 words
A consumable electroplating anode as in claim 8 wherein the solid additive has a melting point in excess of about 65°C.
Claim 11
Dependent Claim
29 words
A consumable electroplating anode as in claim 1 wherein the additive is a liquid present in the anode in an amount of about 0.1 to about 10% by weight.
Claim 12
Dependent Claim
19 words
A consumable electroplating anode as in claim 3 wherein the additive comprises an anode activator and a bath component.
Claim 13
Dependent Claim
16 words
A consumable electroplating anode as in claim 11 wherein the anode activator is a sulfur-containing material.
Claim 14
Dependent Claim
15 words
A consumable electroplating anode as in claim 12 wherein the anode activator is sodium thiosulfate.
Claim 15
Dependent Claim
16 words
A consumable electroplating anode as in claim 1 wherein the density is at least 80% theoretical.
References Cited (Backward Citations)
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US2392708A
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US2642654A
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US2839461A
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GB813408A
Cited
US3340024A
Cited
US3592693A
Cited
US3775273A
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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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |