US3874158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire rope with plastic impregnated lubricated core
Assignee: Amsted Industries Inc
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Filing: 1973-10-29
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Granted: 1975-04-01
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Expires: 1993-10-29
Abstract
Abstract A wire rope with a standard-size independent wire rope core and a standard outer diameter, the core being filled with a heavy viscous lubricant and impregnated with a thermoplastic material to entrap the lubricant in the core.
Inventors
- 👤 Ferdinand Chiappetta
- 👤 Fred Edgar Dykeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:20
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/06; D07B1/0673; D07B1/0686; D07B1/14; D07B1/141; D07B1/144; D07B1/16; D07B1/165; D07B2201/00; D07B2201/10; D07B2201/1028; D07B2201/1036; D07B2201/20; D07B2201/2015; D07B2201/2036; D07B2201/2037; D07B2201/2047; D07B2201/2052; D07B2201/2059; D07B2201/2061; D07B2201/2062; D07B2201/2065; D07B2201/2075; D07B2201/2076; D07B2205/00; D07B2205/50; D07B2205/505
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
62 words
A wire rope comprising: a lubricated core including a central strand and a plurality of outer core strands wound therearound; a flexible thermoplastic material filling the spaces between the outer core strands to retain the lubricant in the core, the thermoplastic material extending outwardly only to the outer diametrical limits of the core; and a plurality of strands wound around the core.
Claim 2
Dependent Claim
62 words
A wire rope comprising: a lubricated core including a central strand and a plurality of outer core strands wound therearound; a flexible thermoplastic material filling the spaces between the outer core strands to retain the lubricant in the core, the thermoplastic material extending outwardly only to the outer diametrical limits of the core; and a plurality of strands wound around the core.
Claim 3
Dependent Claim
16 words
A wire rope according to claim 1, wherein the outer core strands are substantially equally spaced.
Claim 4
Dependent Claim
87 words
A wire rope comprising: an independent wire rope core including a central strand and a plurality of outer core strands wound therearound and substantially equally spaced from each other; a heavy, viscous lubricant filling the interstices between the central strand and the outer core strands; a flexible, thermoplastic material filling the spaces between the outer core strands to hold the lubricant in the interstices, the thermoplastic material extending radially outward only to the outer periphery of the core; and a plurality of strands wound around the core.
Claim 5
Dependent Claim
87 words
A wire rope comprising: an independent wire rope core including a central strand and a plurality of outer core strands wound therearound and substantially equally spaced from each other; a heavy, viscous lubricant filling the interstices between the central strand and the outer core strands; a flexible, thermoplastic material filling the spaces between the outer core strands to hold the lubricant in the interstices, the thermoplastic material extending radially outward only to the outer periphery of the core; and a plurality of strands wound around the core.
References Cited (Backward Citations)
US2485019A
Cited
US3195299A
Cited
US3318082A
Cited
US3705489A
Cited
US3778994A
Cited
US3800522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |