Patent US3718945A successfully refreshed from Google Patents.
US3718945A
Expired / Lapsed
US
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Slings, tow-ropes and the like
Assignee: TREGLODE P DE
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Filing: 1970-10-08
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Granted: 1973-03-06
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Expires: 1990-10-08
Abstract
Abstract A cargo sling, tow-rope or the like comprises two cables embedded in a continuous elastomeric sheath of generally elliptical cross-section, these cables being disposed substantially in the longitudinal plane containing the major axis of the ellipse and in a substantially symmetrical relationship with the longitudinal centerline of the sheath; the cables extend beyond the sheath on at least one end, their projecting extremities being interconnected to form a loop or to engage an attachment such as an extension cable or a coupling member. The cables may be provided with deformations inside the sheath, such as undulations or shoulders, to prevent relative longitudinal slippage. The sheath can be produced by extrusion about the juxtaposed cables.
Inventors
- 👤 Treglode P De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:01
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/18; B; B29; B29C; B29C48/00; B29C48/15; B29C48/156; B29C70/00; B29C70/58; B66; B66C; B66C1/00; B66C1/10; B66C1/12; B66C1/18; B29C48/03; B29C48/05; B29C48/06; B29C48/09; B29C48/11; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3484; Y10T24/3485
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A sling comprising two spacedly juxtaposed cables embedded in a continuous elastomeric sheath and provided with interconnected extremities projecting from said sheath and forming a pair of loops at opposite ends thereof, said sheath having a generally elliptical cross-section with the major axis of the ellipse substantially passing through the axes of said cables on opposite sides of the longitudinal centerline of the sheath and at substantially equal distances from said centerline, the axes of said cables substantially coinciding with the centers of curvature of said cross-section at opposite ends of said major axis.
Claim 2
Dependent Claim
94 words
A sling comprising two spacedly juxtaposed cables embedded in a continuous elastomeric sheath and provided with interconnected extremities projecting from said sheath and forming a pair of loops at opposite ends thereof, said sheath having a generally elliptical cross-section with the major axis of the ellipse substantially passing through the axes of said cables on opposite sides of the longitudinal centerline of the sheath and at substantially equal distances from said centerline, the axes of said cables substantially coinciding with the centers of curvature of said cross-section at opposite ends of said major axis.
Claim 3
Dependent Claim
94 words
A sling comprising two spacedly juxtaposed cables embedded in a continuous elastomeric sheath and provided with interconnected extremities projecting from said sheath and forming a pair of loops at opposite ends thereof, said sheath having a generally elliptical cross-section with the major axis of the ellipse substantially passing through the axes of said cables on opposite sides of the longitudinal centerline of the sheath and at substantially equal distances from said centerline, the axes of said cables substantially coinciding with the centers of curvature of said cross-section at opposite ends of said major axis.
Claim 4
Dependent Claim
94 words
A sling comprising two spacedly juxtaposed cables embedded in a continuous elastomeric sheath and provided with interconnected extremities projecting from said sheath and forming a pair of loops at opposite ends thereof, said sheath having a generally elliptical cross-section with the major axis of the ellipse substantially passing through the axes of said cables on opposite sides of the longitudinal centerline of the sheath and at substantially equal distances from said centerline, the axes of said cables substantially coinciding with the centers of curvature of said cross-section at opposite ends of said major axis.
Claim 5
Dependent Claim
28 words
A sling as defined in claim 1 wherein said cables are provided with deformations within said sheath for preventing relative longitudinal slippage between said sheath and said cables.
Claim 6
Dependent Claim
15 words
A sling as defined in claim 2 wherein said deformations are undulations of said cables.
Claim 7
Dependent Claim
13 words
A sling as defined in claim 3 wherein said undulations are mutually symmetrical.
Claim 8
Dependent Claim
17 words
A sling as defined in claim 2 wherein said deformations are longitudinally spaced fittings on said cables.
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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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |