Patent US4300343A successfully refreshed from Google Patents.
US4300343A
Expired / Lapsed
US
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Gut
Assignee: Kureha Gohsen Co Ltd
•
Filing: 1979-07-16
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Granted: 1981-11-17
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Expires: 1999-07-16
Abstract
Abstract A gut having a novel structure made of a thermoplastic resin and a method of producing the same.
Inventors
- 👤 Masaaki Nakamura
- 👤 Hisaaki Ueba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:43
CPC Classifications
A; A63; A63B; A63B51/00; A63B51/02; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/25; B29C48/30; B29C48/345; B29C53/00; B29C53/14; D; D01; D01D; D01D11/00; D01D5/00; D01D5/08; G; G10; G10D; G10D3/00; G10D3/10; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2973
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
93 words
A gut prepared by collectively twisting a plurality of monofilaments in the number of from 5 to 100 made of a thermoplastic resin spun from a spinning nozzle, and maintaining said plurality of monofilaments at a temperature higher than the softening point of said resin, thereby producing a gut wherein the monofilaments in the central portion of the gut adhere to one another such that the independent shape of each monofilament cannot be distinguished and wherein the monofilaments at the periphery of the gut adhere to one another while maintaining their independent shape.
Claim 2
Dependent Claim
93 words
A gut prepared by collectively twisting a plurality of monofilaments in the number of from 5 to 100 made of a thermoplastic resin spun from a spinning nozzle, and maintaining said plurality of monofilaments at a temperature higher than the softening point of said resin, thereby producing a gut wherein the monofilaments in the central portion of the gut adhere to one another such that the independent shape of each monofilament cannot be distinguished and wherein the monofilaments at the periphery of the gut adhere to one another while maintaining their independent shape.
Claim 3
Dependent Claim
28 words
The gut of claim 1, wherein each surface of said monofilaments is maintained at a temperature higher than the melting point of said resin during said twisting thereof.
Claim 4
Dependent Claim
28 words
The gut of claim 1 or claim 2, wherein said resin is a synthetic resin selected from the group consisting of fluorocarbon resin, polyamide resin and polyester resin.
Claim 5
Dependent Claim
14 words
The gut of claim 3, wherein said fluorocarbon resin is a vinylidene fluoride resin.
Claim 6
Dependent Claim
17 words
The gut of claim 1, wherein each of said monofilaments is 50 to 400 microns in diameter.
Claim 7
Dependent Claim
17 words
The gut of claim 5, wherein each of said monofilaments is 100 to 300 microns in diameter.
Claim 8
Dependent Claim
20 words
The gut of claim 1, which comprises a plurality of said monofilaments in the number of from 20 to 60.
Claim 9
Dependent Claim
21 words
The gut of claims 1, 2, 5, 6, or 7, having a spiral structure of 3 to 100 twists per meter.
Claim 10
Dependent Claim
16 words
The gut of claim 4, having a spiral structure of 3 to 100 twists per meter.
Claim 11
Dependent Claim
12 words
The gut of claim 8, having 10 to 50 twists per meter.
Claim 12
Dependent Claim
12 words
The gut of claim 9, having 10 to 50 twists per meter.
Claim 13
Dependent Claim
14 words
The gut of claim 8, having an elongation at break of 15 to 40%.
Claim 14
Dependent Claim
14 words
The gut of claim 9, having an elongation at break of 15 to 40%.
Claim 15
Dependent Claim
14 words
The gut of claim 8, having an elongation at break of 15 to 30%.
Claim 16
Dependent Claim
14 words
The gut of claim 9, having an elongation at break of 15 to 30%.
References Cited (Backward Citations)
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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) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |