US3988884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a wire rope
Assignee: Individual
•
Filing: 1974-10-10
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Granted: 1976-11-02
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Expires: 1994-10-10
Abstract
Abstract A method of making wire rope which when finished comprises a plural number of wires assembled in a twisted state. Each of said wires is first electroplated with zinc and thence diametrically adjusted as to its length by the application of a cold working thereto. Then the wire rope is further electroplated with tin thereby obtaining corrosion-proof and solderable property besides becoming resistant against friction and the like due to its surface lubrication in comparison with conventional wire ropes.
Inventors
- 👤 Shigeharu Kikugawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:11
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/06; D07B1/0693; D07B2201/00; D07B2201/20; D07B2201/2001; D07B2201/201; D07B2201/2011; D07B2201/2015; D07B2201/2036; D07B2201/2037; D07B2201/2042; D07B2201/2043; D07B2205/00; D07B2205/30; D07B2205/3021; D07B2205/3071; D07B2205/3075; D07B2401/00; D07B2401/20; D07B2401/202; D07B2401/2025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A process of making a wire rope comprising the steps of: a. electroplating a plurality of wire strands with zinc to a predetermined thickness; b. extending the strands by cold working to a predetermined diameter; c. twisting the strands into a wire rope; and, d. electroplating a tin film over the finished rope covering the outer surface of the rope.
Claim 2
Dependent Claim
60 words
A process of making a wire rope comprising the steps of: a. electroplating a plurality of wire strands with zinc to a predetermined thickness; b. extending the strands by cold working to a predetermined diameter; c. twisting the strands into a wire rope; and, d. electroplating a tin film over the finished rope covering the outer surface of the rope.
References Cited (Backward Citations)
US198083A
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US2067405A
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US2605201A
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US3240570A
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US3395530A
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US3601970A
Cited
US3778994A
Cited
US3834149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |