US5419951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut and abrasion resistant webbing and multifilament bicomponent yarn used in the manufacturing thereof
Assignee: MURDOCK WEBBING COMPANY Inc A RHODE ISLAND Corp
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Filing: 1993-06-04
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Granted: 1995-05-30
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Expires: 2013-06-04
Abstract
Abstract Sling or tie-down webbing in the form of a strap provided with protective warp yarn structure made up of bicomponent fibers that include a polyester core with a sheath of a polymer with a lower melting point than the polyester, which webbing has been subjected to a heat treatment sufficient to cause melting of said sheath, but not of the core.
Inventors
- 👤 Robert E. Golz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:14
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12; B66C1/18; D; D03; D03D; D03D15/00; D03D15/50; D03D15/587; D04; D04H; D04H1/00; D04H1/40; D04H1/54; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T442/00; Y10T442/30; Y10T442/3146; Y10T442/3154; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/326; Y10T442/3285
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
An elongated webbing formed from warp and weft yarns woven together, said webbing comprising face and back surfaces, at least some of said warp yarns being specially formed so as to exhibit increased resistance to abrasion and cutting, said specially formed warp yarns each comprising a plurality of individual filaments each of which comprises a core and an outer sheath, the melting point of the sheath being lower than that of its core, said specially formed yarns being located intermediate the longitudinal edges of said webbing, said webbing having been subjected to a heat treatment sufficient to melt said sheaths, but not said cores, said specially formed yarns, after heat treatment, having at least as great a modulus of elasticity as the yarns in said webbing that have not been specially formed.
Claim 2
Dependent Claim
132 words
An elongated webbing formed from warp and weft yarns woven together, said webbing comprising face and back surfaces, at least some of said warp yarns being specially formed so as to exhibit increased resistance to abrasion and cutting, said specially formed warp yarns each comprising a plurality of individual filaments each of which comprises a core and an outer sheath, the melting point of the sheath being lower than that of its core, said specially formed yarns being located intermediate the longitudinal edges of said webbing, said webbing having been subjected to a heat treatment sufficient to melt said sheaths, but not said cores, said specially formed yarns, after heat treatment, having at least as great a modulus of elasticity as the yarns in said webbing that have not been specially formed.
Claim 3
Dependent Claim
35 words
The webbing as recited in claim 1 wherein said filaments each have a polyester core which melts at around 489 degrees F. and a sheath selected from the group consisting of nylon-6, polypropylene, and polyethylene.
Claim 4
Dependent Claim
17 words
The webbing of claim 2 wherein said specially formed yarns comprise a plurality of longitudinally extending stripes.
Claim 5
Dependent Claim
17 words
The webbing of claim 3 wherein said stripes are located on the face surface of said webbing.
Claim 6
Dependent Claim
17 words
The webbing of claim 3 wherein said stripes are located on the back surface of said webbing.
Claim 7
Dependent Claim
18 words
The webbing of claim 1 wherein said specially formed yarns extend across the full width of said webbing.
References Cited (Backward Citations)
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US3629053A
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US4052095A
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US4987030A
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US4856837A
Cited
US5219636A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |