US3220074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-swaging ferrule
Assignee: Esco Corp
•
Filing: 1963-09-03
•
Granted: 1965-11-30
•
Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Leslie G Ehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:56
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/16; D07B1/165; D07B1/167; D07B9/00; F; F16; F16G; F16G11/00; F16G11/04; F16G11/05; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3996; Y10T403/00; Y10T403/70; Y10T403/7062; Y10T403/7064; Y10T403/7066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A FERRULE FOR A ROPE COMPRISING A SLEEVE HAVING A CONICALLY SHAPED BORE, AND A PLURALITY OF COMPLEMENTARY, INTERFITTING, TAPERED, HELICAL, WEDGING CORE MEMBERS ARRANGED TO ENGAGE AND FIT SAID BORE, HELICAL ABUTTING AND APPROXIMATELY RADIAL OPPOSITE SIDE FACES ON SAID CORE MEMBERS, A SINGLE INTERIOR HELICAL GROOVE IN EACH CORE MEMBER INTERSECTING ONE SIDE FACE NEAR THE CENTER OF THE FERRULE AND INTERSECTING THE OPPOSITE SIDE FACE AT A GREATER DISTANCE FROM THE CENTER OF THE FERRULE, AND A SING.E HELICAL GROOVE IN THE OUTER SURFACE OF EACH CORE MEMBER SPACED BETWEEN SAID SIDE FACES.
Claim 2
Dependent Claim
96 words
A FERRULE FOR A ROPE COMPRISING A SLEEVE HAVING A CONICALLY SHAPED BORE, AND A PLURALITY OF COMPLEMENTARY, INTERFITTING, TAPERED, HELICAL, WEDGING CORE MEMBERS ARRANGED TO ENGAGE AND FIT SAID BORE, HELICAL ABUTTING AND APPROXIMATELY RADIAL OPPOSITE SIDE FACES ON SAID CORE MEMBERS, A SINGLE INTERIOR HELICAL GROOVE IN EACH CORE MEMBER INTERSECTING ONE SIDE FACE NEAR THE CENTER OF THE FERRULE AND INTERSECTING THE OPPOSITE SIDE FACE AT A GREATER DISTANCE FROM THE CENTER OF THE FERRULE, AND A SING.E HELICAL GROOVE IN THE OUTER SURFACE OF EACH CORE MEMBER SPACED BETWEEN SAID SIDE FACES.
References Cited (Backward Citations)
US3123879A
Cited
US2072215A
Cited
US2341922A
Cited
US2620550A
Cited
AT165577B
Cited
US3045305A
Cited
AT185089B
Cited
US2901822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |