US3582004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering metals from cables and the like
Assignee: EISEN und METALL AG
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Filing: 1968-06-11
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Granted: 1971-06-01
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Expires: 1988-06-11
Abstract
Abstract A method for recovering metals from discarded cables and the like wherein the discarded cables are comminuted in a hammer mill and, after removing light components by suction and of iron components by magnetic action, may be additionally comminuted by a cutting action. The comminuted material is successively treated in belt sink separators individually associated with draining screens and conveyors operatively connected therewith for removing floats from the first separator or separators and sinks from the last separator. The several sink separators are operated at different turbidities.
Inventors
- 👤 Hans Lenz
- 👤 Jochen Mehlbeer
- 👤 Heinrich Macura
- 👤 Otto Weidner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:49
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B03B9/061; B29; B29B; B29B17/00; B29B17/02; C; C22; C22B; C22B1/00; C22B1/005; H; H01; H01B; H01B15/00; B29B2017/0213; B29B2017/0217; B29B2017/0237; B29B2017/0244; B29B2017/0268; B29B2017/0272; B29K; B29K2105/00; B29K2105/06; B29K2105/065; B29K2705/00; B29K2705/02; B29K2705/04; B29K2705/08; B29K2705/10; B29K2711/00; B29K2711/12; B29L; B29L2031/00; B29L2031/34; B29L2031/3462; B29L2031/707; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y02W; Y02W30/00; Y02W30/50; Y02W30/52; Y02W30/62; Y02W30/82
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
In a method of recovering metal from discarded cables and the like composed of several metals wherein the cables are comminuted in a mill the steps comprising conducting the output of the mill directly into a first sink separator, conducting at least a portion of the output of the first sink separator directly into a second sink separator with a turbidity different from the turbidity of the first sink separator, and so adjusting the travel velocities, to and through the sink separators of the respective product to be separated, at least as long as there are at least two metal sorts in the product, that the separating effected in the mill is substantially maintained by said sink separators.
Claim 2
Dependent Claim
118 words
In a method of recovering metal from discarded cables and the like composed of several metals wherein the cables are comminuted in a mill the steps comprising conducting the output of the mill directly into a first sink separator, conducting at least a portion of the output of the first sink separator directly into a second sink separator with a turbidity different from the turbidity of the first sink separator, and so adjusting the travel velocities, to and through the sink separators of the respective product to be separated, at least as long as there are at least two metal sorts in the product, that the separating effected in the mill is substantially maintained by said sink separators.
Claim 3
Dependent Claim
23 words
In a method as defined in claim 1 wherein the comminuted material is subjected to magnetic separation prior to the first sink separation.
Claim 4
Dependent Claim
27 words
In a method according to claim 2 wherein the comminuted material before the first sink separation is further comminuted by cutting after being subjected to magnetic separation.
Claim 5
Dependent Claim
21 words
In a method according to claim 1 wherein the comminuted material is further comminuted by cutting before the first sink separation.
Claim 6
Dependent Claim
24 words
In a method as defined in claim 1 wherein the output of the mill is subjected to suction for separating fine and light components.
Claim 7
Dependent Claim
34 words
In a method as defined in claim 1 wherein the floats of the first sink separation containing one of the metals to be recovered, are subjected at reduced turbidity to the second sink separation.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |