Patent US3616165A successfully refreshed from Google Patents.
US3616165A
Expired / Lapsed
US
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Super-strong cord and tape composed of polyvinyl alcohol fibers
Assignee: Individual
•
Filing: 1967-04-28
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Granted: 1971-10-26
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Expires: 1987-04-28
Abstract
Abstract Cord and tape composed of continuous polyvinyl alcohol fibers which were highly strengthened by repeatedly immersing in the same kind of polyvinyl alcohol solution.
Inventors
- 👤 Tetsuo Nishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:17
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/40; D02G3/402; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2877
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
12 words
combining a multiplicity of said polyvinyl alcohol filaments into a continuous bundle,
Claim 2
Independent Claim
8 words
A method of making a superstrong tape comprising,
Claim 3
Dependent Claim
13 words
combining a plurality of the polyvinyl alcohol filaments into separate continuous filament bundles,
Claim 4
Dependent Claim
18 words
arranging a predetermined number of said filament bundles in side-by-side relation to form a tape of desired width,
Claim 5
Dependent Claim
18 words
repeatedly immersing the continuous filament bundle into the same polyvinyl alcohol solution from which the filaments are made,
Claim 6
Dependent Claim
30 words
The method as set forth in claim 1 including after step 7, applying an adhesive solution on one side of the tape, and drying the adhesive solution on the tape.
Claim 7
Dependent Claim
62 words
A superstrong cord comprising a plurality of substantially continuous polyvinyl alcohol fibers disposed in substantially parallel and substantially touching relation forming a bundle of said fibers, and a binder of the same polyvinyl alcohol from which said fibers are formed adhered on and between the said plurality of fibers, fixing all of said fibers together in said bundle as a unit body.
Claim 8
Dependent Claim
5 words
drying the filament bundle, and
Claim 9
Dependent Claim
3 words
drying the tape,
Claim 10
Dependent Claim
16 words
repeatedly immersing the tape into the same polyvinyl alcohol solution from which the filaments are made,
Claim 11
Dependent Claim
11 words
subjecting said dried filament bundle to first and second twisting operations.
Claim 12
Dependent Claim
64 words
A superstrong tape comprising a plurality of substantially continuous bundles of said polyvinyl alcohol fibers as set forth in claim 7 connected in the same plane in side-by-side substantially touching relation, and a binder of the same polyvinyl alcohol from which said bundles are formed adhered on and between said bundles and fixedly encapsuling said plurality of bundles together as a unit tape body.
Claim 13
Dependent Claim
37 words
A superstrong tape as set forth in claim 5, in which said unit tape body has a substantially continuous surface of predetermined width, and including an adhesive coating connected to said surface forming a superstrong adhesive tape.
Claim 14
Dependent Claim
4 words
tentering the tape, and
Claim 15
Dependent Claim
3 words
drying the tape.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |