Patent US3476596A successfully refreshed from Google Patents.
Patent US3600765A successfully refreshed from Google Patents.
US3600765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rope end coupling
Assignee: FKI Industries Inc
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Filing: 1968-12-27
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Granted: 1971-08-24
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Expires: 1988-12-27
Abstract
Abstract A rope end coupling composed of a ferrule having a conically shaped bore and a tapered wedge for securing a rope having a plurality of outer strands in the ferrule bore. The tapered wedge includes a plurality of grooves in its outer surface to receive some or all of the strands of the rope and tightly hold them against the ferrule.
Inventors
- 👤 Raymond R Rovinsky
- 👤 Harry R Gardner Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:47
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/04; F16G11/05; F16G11/044; F16G11/048; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3909
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
138 words
A rope end coupling comprising: a. a high strength ferrule sleeve having conically shaped bore; and b. a deformable wedge adapted to be received within the bore of said ferrule sleeve for holding a rope end therein, said wedge being tapered to an angle greater than the angle of taper of the bore in said ferrule sleeve and having: 1. a plurality of longitudinally extending grooves on its outer surface for separately receiving at least some of the outer strands of said rope; and 2. a maximum outer diameter greater than the minimum inner diameter of the bore of said ferrule sleeve and large enough relative to the diameter of the bore of the ferrule sleeve and said rope to prevent movement thereof into opposed relation with the smaller end of said ferrule sleeve under normal operating conditions.
Claim 2
Dependent Claim
138 words
A rope end coupling comprising: a. a high strength ferrule sleeve having conically shaped bore; and b. a deformable wedge adapted to be received within the bore of said ferrule sleeve for holding a rope end therein, said wedge being tapered to an angle greater than the angle of taper of the bore in said ferrule sleeve and having: 1. a plurality of longitudinally extending grooves on its outer surface for separately receiving at least some of the outer strands of said rope; and 2. a maximum outer diameter greater than the minimum inner diameter of the bore of said ferrule sleeve and large enough relative to the diameter of the bore of the ferrule sleeve and said rope to prevent movement thereof into opposed relation with the smaller end of said ferrule sleeve under normal operating conditions.
Claim 3
Dependent Claim
53 words
a maximum outer diameter greater than the minimum inner diameter of the bore of said ferrule sleeve and large enough relative to the diameter of the bore of the ferrule sleeve and said rope to prevent movement thereof into opposed relation with the smaller end of said ferrule sleeve under normal operating conditions.
Claim 4
Dependent Claim
53 words
a maximum outer diameter greater than the minimum inner diameter of the bore of said ferrule sleeve and large enough relative to the diameter of the bore of the ferrule sleeve and said rope to prevent movement thereof into opposed relation with the smaller end of said ferrule sleeve under normal operating conditions.
Claim 5
Dependent Claim
26 words
A rope end coupling according to claim 1 wherein: a. all of the outer rope strands are received in separate longitudinally extending grooves in the wedge.
Claim 6
Dependent Claim
5 words
semicircular in cross section, and
Claim 7
Dependent Claim
5 words
semicircular in cross section, and
Claim 8
Dependent Claim
15 words
formed to a depth equal to approximately one-half the diameter of the outer rope strands.
Claim 9
Dependent Claim
15 words
formed to a depth equal to approximately one-half the diameter of the outer rope strands.
Claim 10
Dependent Claim
28 words
A rope end coupling according to claim 2 wherein: a. the wedge block has a bore extending longitudinally therethrough for receiving the core strand of the wire rope.
Claim 11
Dependent Claim
24 words
A rope end coupling according to claim 3 wherein: a. a longitudinal slot extends the full length of the wedge communicating with the bore.
Claim 12
Dependent Claim
49 words
A rope end coupling according to claim 4 wherein: a. said wedge is of sufficiently deformable material relative to the ferrule sleeve whereby said wedge is deformed to close said slot upon insertion of said wedge with the rope strands received thereon, into operative position within said ferrule sleeve.
Claim 13
Dependent Claim
94 words
A rope end coupling according to claim 4 for coupling of a rope having the outer strands wrapped about the longitudinal axis of the rope in a helix said outer strands themselves each being formed from helically wound substrands, wherein: a. the wedge is of sufficiently deformable material whereby the grooves therein are deformed laterally of the surface of the wedge into a bowed shaped due to the helix of the outer strands and upon insertion of the wedge, with said outer strands received within the grooves, into operative position within said ferrule sleeve.
Claim 14
Dependent Claim
50 words
A rope end coupling according to claim 6 wherein: a. said wedge is of sufficiently deformable material whereby the walls of the grooves therein are deformed about the individual substrands of the outer strands in a helical pattern upon insertion of the wedge into operative position within said ferrule sleeve.
Claim 15
Dependent Claim
25 words
A rope end coupling according to claim 7 wherein: a. the end of the longitudinally extending grooves in the undeformed condition of the wedge are:
Claim 16
Dependent Claim
30 words
A rope end coupling according to claim 8 wherein: a. the diameter of the smaller end of said deformed wedge is slightly smaller than the diameter of said rope. 19.
Claim 17
Dependent Claim
34 words
A rope end coupling according to claim 9 wherein: a. the conical bore of the ferrule is tapered at an angle of 4*, and b. the wedge is tapered at an angle of 6*.
Claim 18
Dependent Claim
21 words
A rope end coupling according to claim 10 wherein: a. the wedge block has a shorter length than the ferrule sleeve.
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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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |