Patent US2825434A successfully refreshed from Google Patents.
Patent US3254383A successfully refreshed from Google Patents.
US3254383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-swaging ferrule
Assignee: Esco Corp
•
Filing: 1964-12-28
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Granted: 1966-06-07
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Leslie G Ehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:40
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/04; F16G11/05; F16G11/044; F16G11/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A FERRULE COMPRISING A SLEEVE HAVING A CONICALLY SHAPED BORE AND A TAPERED ONE PIECE WEDGE BLOCK FOR SECURING A ROPE IN SAID BORE, SAID WEDGE BLOCK HAVING HELICAL GROOVES IN ITS OUTER SURFACE TO RECEIVE CERTAIN STRANDS OF THE ROPE AND HAVING A CENTRAL OPENING WITH HELICAL GROOVES TO RECEIVE CERTAIN OTHER STRANDS, SAID OPENING AND LAST GROOVES BEING ARRANGED SO THAT THE WEDGE BLOCK WILL SCREW ONTO SAID OTHER STRANDS IN THEIR ORIGINAL POSITIONS IN THE ROPE AFTER SAID FIRST MENTIONED STRANDS HAVE BEEN SPREAD APART FROM THE ROPE, SAID WEDGE BLOCK BEING SEGMENTED BY A PLURALITY OF LONGITUDINALLY SLITS EXTENDING FROM ONE END OF THE WEDGE BLOCK, SAID SLITS EXTENDING INWARDLY FROM SAID OUTER SURFACE OF THE WEDGE BLOCK TO SAID CENTRAL OPENING AND FOLLOWING HELICAL PATHS BETWEEN SAID OTUER GROOVES.
Claim 2
Dependent Claim
134 words
A FERRULE COMPRISING A SLEEVE HAVING A CONICALLY SHAPED BORE AND A TAPERED ONE PIECE WEDGE BLOCK FOR SECURING A ROPE IN SAID BORE, SAID WEDGE BLOCK HAVING HELICAL GROOVES IN ITS OUTER SURFACE TO RECEIVE CERTAIN STRANDS OF THE ROPE AND HAVING A CENTRAL OPENING WITH HELICAL GROOVES TO RECEIVE CERTAIN OTHER STRANDS, SAID OPENING AND LAST GROOVES BEING ARRANGED SO THAT THE WEDGE BLOCK WILL SCREW ONTO SAID OTHER STRANDS IN THEIR ORIGINAL POSITIONS IN THE ROPE AFTER SAID FIRST MENTIONED STRANDS HAVE BEEN SPREAD APART FROM THE ROPE, SAID WEDGE BLOCK BEING SEGMENTED BY A PLURALITY OF LONGITUDINALLY SLITS EXTENDING FROM ONE END OF THE WEDGE BLOCK, SAID SLITS EXTENDING INWARDLY FROM SAID OUTER SURFACE OF THE WEDGE BLOCK TO SAID CENTRAL OPENING AND FOLLOWING HELICAL PATHS BETWEEN SAID OTUER GROOVES.
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |