# US 7,406,797 B2 · Super high floating line

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- Number: US 7,406,797 B2
- Document ID: US7406797B2
- Status: Granted
- Kind: B2
- Application number: 11/213,588
- Filed: 2005-08-26
- Published: 2006-03-09
- Granted: 2008-08-05
- Earliest claimed: 2004-09-09
- Assignees: Rio Products Intl., Inc.
- Inventors: John Harder; Marlin Roush; John Schultz; Timothy Moon
- Web page: https://patentgrep.com/patent/US7406797B2

## CPC

- A01K 91/12: Fly lines
- Y10T 428/2927: including structurally defined particulate matter
- Y10T 428/2929: Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
- Y10T 428/2933: Coated or with bond, impregnation or core
- Y10T 428/2967: Synthetic resin or polymer
- Y10T 428/2969: Polyamide, polyimide or polyester
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Fly fishing lines and methods for manufacturing fly fishing lines entail the use of polymer microspheres within the fly line coating to produce lines with very low specific gravities. The fly lines have single or multiple coatings. In fly lines having multiple coatings, the inner coating includes polymer microspheres and the outer coating include either polymer microspheres or glass microspheres.

## Claims

### Claim 1

A fishing line, comprising:
a core;
a first coating disposed around the core, the first coating having a plurality of polymer microspheres; and
a second coating disposed around the first coating,
the core including first and second core portions, the first coating disposed around both the first and second core portions, the second coating disposed around that portion of the first coating that is disposed around the first core portion; the fishing line including a third coating disposed around that portion of the first coating that is disposed around the second core portion, the second and third coatings having microspheres made of different materials.

### Claim 2 (depends on 1)

The fishing line of claim 1, wherein the second coating has a plurality of polymer microspheres, and the third coating includes a plurality of glass microspheres.

### Claim 3 (depends on 1)

The fishing line of claim 1, wherein one of the second and third coatings includes a plurality of polymer microspheres, and a viscosity of said one of the second and third coatings is different from a viscosity of the first coating.

### Claim 4

A fishing line comprising:
a core;
a first coating disposed around the core, the first coating having a plurality of polymer Microspheres; and
a second coating disposed around the first coating, the second coating being a PVC plastisol, and
the fishing line has a slickness corresponding to, as measured using a tensile tester with a 10 kilogram load cell, less than 0.3 pounds of force required to pull a .05 inch diameter fishing line having a 0.123 pound attached weight over a 7 inch diameter chrome plate wheel at a rate of 10 inches per minute, the line having a surface contact length of 22 inches to the wheel.