Patent US3842628A successfully refreshed from Google Patents.
US3842628A
Expired / Lapsed
US
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Industrial tapes
Assignee: Specialized Tapes Ltd
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Filing: 1972-10-05
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Granted: 1974-10-22
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Expires: 1992-10-05
Abstract
Abstract An industrial tape for reinforcing materials such as laminates and mouldings, comprises a knitted woven or non-woven ground fabric on which a carbon filament tow is held by overlying holding threads. In the case of a knitted ground fabric the overlying holding threads are preferably knitted loops.
Inventors
- 👤 J Bennett
- 👤 A Parva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:17
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/16; D10; D10B; D10B2403/00; D10B2403/02; D10B2403/024; D10B2403/0241; D10B2403/02411; D10B2403/03; D10B2403/031; D10B2505/00; D10B2505/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
A warp knitted industrial reinforcement tape having a knitted structure comprising: a. chains of warp-knitted stitches formed of warp threads; b. at least one backing thread laid into the knitted structure beneath the chains of warp-knitted stitches; c. at least one carbon filament tow laid into the knitted structure over the chains of warp-knitted stitches; and d. at least one holding thread laid into the knitted structure over the chains of warp knitted stItches and the carbon filament tow to hold the tow in the tape.
Claim 2
Dependent Claim
86 words
A warp knitted industrial reinforcement tape having a knitted structure comprising: a. chains of warp-knitted stitches formed of warp threads; b. at least one backing thread laid into the knitted structure beneath the chains of warp-knitted stitches; c. at least one carbon filament tow laid into the knitted structure over the chains of warp-knitted stitches; and d. at least one holding thread laid into the knitted structure over the chains of warp knitted stItches and the carbon filament tow to hold the tow in the tape.
Claim 3
Dependent Claim
29 words
A warp-knitted industrial reinforcement tape according to claim 1, wherein the threads forming chains of warp-knitted stitches, the backing threads and the holding threads are all glass fiber threads.
Claim 4
Dependent Claim
43 words
A warp-knitted industrial reinforcement tape according to claim 1, wherein at least one backing thread is at higher tension than the at least one holding thread so that the carbon filament tow stands proud of the plane of the rest of the tape.
Claim 5
Dependent Claim
37 words
A warp-knitted industrial reinforcement tape according to claim 1, wherein the backing and holding threads are at substantially the same low tension so that the carbon filament tow lies substantially flush with the rest of the tape.
Claim 6
Dependent Claim
19 words
A warp-knitted industrial reinforcement tape according to claim 1, wherein the carbon filament tow extends axially along the tape.
Claim 7
Dependent Claim
23 words
A warp-knitted industrial reinforcement tape according to claim 1, wherein the carbon filament tow extends diagonally across the tape in a zig-zag configuration.
Claim 8
Dependent Claim
52 words
A warp-knitted industrial reinforcement tape according to claim 1, wherein at least two carbon filament tows are held in the tape by the at least one holding thread, one carbon filament tow extending axially along the tape and the other carbon filament tow extending diagonally across the tape in a zig-zag configuration.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |