US5296292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elongated cylindrical tensile article
Assignee: W.L. Gore and Associates Inc
•
Filing: 1990-09-04
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Granted: 1994-03-22
•
Expires: 2010-09-04
Abstract
Abstract An elongated cylindrical tensile article of one or more strands of monofilament core surrounded by porous polytetrafluoroethylene (PTFE) which may be optionally coated or die sized on the outer surface for smoothness and/or abrasion resistance. The core filaments thereof may optionally be coated with high-temperature resistant adhesive for increased adherence to the PTFE. The article is particularly useful for fly-casting lines for fishing. The density may be controlled to produce a floating or sinking flyline or portion thereof.
Inventors
- 👤 Leslie C. Butters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:32
CPC Classifications
A; A01; A01K; A01K91/00; A01K91/12; B; B29; B29C; B29C48/00; B29C48/022; B29C48/15; D; D01; D01F; D01F8/00; D01F8/04; D01F8/10; B29C48/03; B29C48/05; B29K; B29K2027/00; B29K2027/12; B29K2027/18; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2933; Y10T428/2936; Y10T428/2938; Y10T428/2964; Y10T428/2967; Y10T428/2973; Y10T428/2975; Y10T428/2976
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
45 words
A fly fishing line comprising: (a) a non-metallic tensile strength member core comprising at least one monofilament; and (b) a layer of porous polytetrafluoroethylene surrounding said tensile strength member; wherein at least a portion of the length of the layer of porous polytetrafluoroethylene is tapered.
Claim 2
Dependent Claim
45 words
A fly fishing line comprising: (a) a non-metallic tensile strength member core comprising at least one monofilament; and (b) a layer of porous polytetrafluoroethylene surrounding said tensile strength member; wherein at least a portion of the length of the layer of porous polytetrafluoroethylene is tapered.
Claim 3
Dependent Claim
19 words
The fly fishing line of claim 1 wherein said porous polytetrafluoroethylene has a microstructure of nodes interconnected by fibrils.
Claim 4
Dependent Claim
21 words
The fly fishing line of claims 1 or 2 wherein said porous polytetrafluoroethylene layer has an abrasion resistant outer surface layer.
Claim 5
Dependent Claim
19 words
The fly fishing line of claims 1 or 2 wherein said porous polytetrafluoroethylene layer has a densified outer surface.
Claim 6
Dependent Claim
21 words
The fly fishing line of claims 1 or 2 comprising at least two monofilaments that are twisted, woven or braided together.
Claim 7
Dependent Claim
26 words
The fly fishing line of claims 1 or 2 wherein said fly fishing line has an overall density of from about 0.50 to about 1.00 g/cc.
Claim 8
Dependent Claim
24 words
The fly fishing line of claims 1 or 2 wherein said fly fishing line has an overall density of greater than about 1.00 g/cc.
Claim 9
Dependent Claim
45 words
The fly fishing line of claims 1 or 2 wherein a first length portion of said fly fishing line has a density from about 0.50 to about 1.00 g/cc and a second length portion of said article has a density greater than about 1.00 g/cc.
Claim 10
Dependent Claim
16 words
The fly fishing of claims 1 or 2 wherein said porous polytetrafluoroethylene contains a coloring pigment.
Claim 11
Dependent Claim
24 words
The fly fishing of claims 1 or 2 wherein at least one monofilament of said strength member core is coated with an adhesive layer.
Claim 12
Dependent Claim
13 words
The fly fishing of claim 10 wherein said adhesive layer comprises PFA copolymers.
Claim 13
Dependent Claim
21 words
The fly fishing of claims 1 or 2 wherein at least one monofilament of said strength member core comprises an adhesive.
Claim 14
Dependent Claim
13 words
The fly fishing of claim 12 wherein said adhesive comprises a thermoplastic polymer.
Claim 15
Dependent Claim
12 words
The fly fishing of claim 13 wherein said adhesive comprises PFA copolymers.
Claim 16
Dependent Claim
29 words
The fly fishing line of claims 1 or 2 wherein said strength member core comprises at least two monofilaments that are surrounded as a unit by an adhesive layer.
Claim 17
Dependent Claim
13 words
The fly fishing of claim 15 wherein said adhesive layer comprises PFA copolymers.
Claim 18
Dependent Claim
36 words
The fly fishing line of claims 1 or 2 wherein said strands of said strength member are selected from the group consisting of polytetrafluoroethylene, carbon, glass, and polycarbonate, polysulfone, polyphenol, polyamide, polyimide, and polyamide imide polymers.
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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) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |