Patent EP0363151A2 successfully refreshed from Google Patents.
Patent US4049512A successfully refreshed from Google Patents.
US4049512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode structure for electrolytic apparatus employing impellers
Assignee: Individual
•
Filing: 1975-10-31
•
Granted: 1977-09-20
•
Expires: 1995-10-31
Abstract
Abstract An apparatus for electrolytically extracting metals from salts in solution including a novel cathode structure which greatly increases the rate of extraction is disclosed. More specifically, the novel cathode structure comprises a shaft having a plurality of flexible circular members mounted in spaced relation thereon. The members have impellers thereon for circulating the solution about the anodes and cathodes. The concave members are sufficiently flexible that they may be easily everted so as to cause the metal deposited thereon to pop off. One preferred embodiment includes a tube inlet which prevents plating of silver in a connected feed tank.
Inventors
- 👤 Albert E. Tolle, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C25; C25C; C25C7/00; C25C7/007; C02F1/467; C02F1/4676; C02F1/4678; C02F2001/46123; C02F2001/46133; C02F2001/46152; C02F2103/00; C02F2103/34; C02F2103/40; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
An apparatus for electrolytically extracting metal from salts in a solution on a continuous basis comprising: a. tank means containing i. electrically non-conductive conduit means connected thereto for conveying said solution from holding tank means to said tank means, a portion of said conduit means being located above the surface of the solution contained in said tank means to prevent electrical contact between said tank means and said holding tank means, and ii. drain outlet means located a distance beneath said portion of said conduit means to prevent said portion of said conduit means from being totally immersed in said solution, b. an electrically conductive shaft means extending into said solution in said tank means, c. a plurality of annular spacer means mounted on said shaft means, d. a plurality of electrically conductive cathode member means rigidly mounted along said shaft means and maintained in spaced relation along the length thereof by said spacer means, said cathode member means being mounted so that the principal planes of said cathode member means are perpendicular to said shaft means, said cathode member means having impeller means connected thereto for circulating said solution about said cathode member means, e. means for rotating said shaft means and said circular cathode member means, f. at least one elongated anode member means extending into said solution in said tank means adjacent the peripheral edges of said cathode member means, and g. means for applying a DC voltage between said cathode member means and said anode member means.
Claim 2
Independent Claim
251 words
An apparatus for electrolytically extracting metal from salts in a solution on a continuous basis comprising: a. tank means containing i. electrically non-conductive conduit means connected thereto for conveying said solution from holding tank means to said tank means, a portion of said conduit means being located above the surface of the solution contained in said tank means to prevent electrical contact between said tank means and said holding tank means, and ii. drain outlet means located a distance beneath said portion of said conduit means to prevent said portion of said conduit means from being totally immersed in said solution, b. an electrically conductive shaft means extending into said solution in said tank means, c. a plurality of annular spacer means mounted on said shaft means, d. a plurality of electrically conductive cathode member means rigidly mounted along said shaft means and maintained in spaced relation along the length thereof by said spacer means, said cathode member means being mounted so that the principal planes of said cathode member means are perpendicular to said shaft means, said cathode member means having impeller means connected thereto for circulating said solution about said cathode member means, e. means for rotating said shaft means and said circular cathode member means, f. at least one elongated anode member means extending into said solution in said tank means adjacent the peripheral edges of said cathode member means, and g. means for applying a DC voltage between said cathode member means and said anode member means.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said cathode member means are circular in shape.
Claim 4
Dependent Claim
22 words
The apparatus of claim 1 wherein there are at least four of said anode member means spaced equidistantly around said cathode members.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein said shaft means is made of a corrosion resistant material.
Claim 6
Dependent Claim
37 words
The apparatus of claim 1 wherein said impeller means comprises triangular openings in said cathode member means and a triangular piece of metal bent downwardly a distance sufficient to achieve a desired flow rate through said opening.
References Cited (Backward Citations)
US1066570A
Cited
GB817912A
Cited
US3342718A
Cited
US3458425A
Cited
US3560366A
Cited
US3583897A
Cited
US3909368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |