US3383849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rope strand or yarn and method of making same to reduce its whip-back characteristic at rupture
Assignee: Individual
•
Filing: 1966-08-10
•
Granted: 1968-05-21
•
Expires: 1986-08-10
Abstract
No abstract record available.
Inventors
- 👤 Stirling James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:21
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/02; D07B1/24; D07B2201/00; D07B2201/10; D07B2201/104; D07B2201/1044; D07B2201/1064; D07B2201/20; D07B2201/2015; D07B2201/2024; D07B2201/2025; D07B2401/00; D07B2401/20; D07B2401/2005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A ROPE STRAND COMPRISING: A CORE INCLUDING A PLURALITY OF YARNS TWISTED ABOUT A COMMON AXIS AT A PREDETERMINED PITCH PER UNIT LENGTH, AND A LAYER OF INDIVIDUAL YARN ELEMENTS TWISTED ABOUT SAID COMMON AXIS ONTO AND ABOUT SAID CORE WHEREBY THE PITCH PER SAID UNIT LENGTH OF SAID LAYER OF YAN IS ADJUSTED IN RELATIONSHIP TO THE PITCH PER UNIT LENGTH OF SAID CORE MEASURED ALONG SAID COMMON AXIS SO THAT THE INDIVIDUAL YARNS IN SAID COVERING LAYER ATTAIN THEIR MAXIMUM ELONGATION FIRST AND THE MAXIMUM ELONGATION WILL BE REACHED BY THE SUCCEEDING LAYERS OF YARN IN SUCCESSION GOING TOWARD THE CORE.
Claim 2
Dependent Claim
103 words
A ROPE STRAND COMPRISING: A CORE INCLUDING A PLURALITY OF YARNS TWISTED ABOUT A COMMON AXIS AT A PREDETERMINED PITCH PER UNIT LENGTH, AND A LAYER OF INDIVIDUAL YARN ELEMENTS TWISTED ABOUT SAID COMMON AXIS ONTO AND ABOUT SAID CORE WHEREBY THE PITCH PER SAID UNIT LENGTH OF SAID LAYER OF YAN IS ADJUSTED IN RELATIONSHIP TO THE PITCH PER UNIT LENGTH OF SAID CORE MEASURED ALONG SAID COMMON AXIS SO THAT THE INDIVIDUAL YARNS IN SAID COVERING LAYER ATTAIN THEIR MAXIMUM ELONGATION FIRST AND THE MAXIMUM ELONGATION WILL BE REACHED BY THE SUCCEEDING LAYERS OF YARN IN SUCCESSION GOING TOWARD THE CORE.
References Cited (Backward Citations)
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US2133071A
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US2190854A
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US3197953A
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US3323301A
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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) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |