US3625809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament blend products
Assignee: Owens Corning
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Filing: 1970-02-24
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Granted: 1971-12-07
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Expires: 1990-02-24
Abstract
Abstract Composite yarns comprising relatively inextensible, but highstrength glass filaments helically overwrapped about a core of shorter, more straight organic resin filaments which have a substantial amount of stretch, such as rayon and nylon. When tensile force is applied, the glass filaments straighten out and the organic filaments tend to overwrap. With proper selection, both filaments will be loaded to just below the yield point at the same maximum tensile force. Thus, the combination yarn will break at a load that is approximately equal to the combined breaking strengths of the glass and organic filaments.
Inventors
- 👤 Remus F Caroselli
- 👤 Fred A Mennerich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/447; D02G3/02; D02G3/16; D02G3/18; D02G3/182; D02G3/22; D02G3/38; F; F16; F16C; F16C27/00; F16C27/06; F16G; F16G1/00; F16G1/04; F16G1/06; F16G1/08; F16G5/00; F16G5/04; F16G5/06; Y; Y10; Y10S; Y10S57/00; Y10S57/902; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249922; Y10T428/26; Y10T428/268; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2377
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
22 words
The composite yarn structure as claimed in claim 1, wherein the glass filaments are of a diameter not exceeding about 0.00015 inch.
Claim 2
Dependent Claim
26 words
The composite yarn structure as claimed in claim 1, wherein the organic filaments are selected from the group consisting of cotton, nylon, rayon, polyester and polypropylene.
Claim 3
Dependent Claim
22 words
The composite yarn structure as claimed in claim 3, wherein the glass filaments are of a diameter not exceeding about 0.00015 inch.
Claim 4
Dependent Claim
74 words
A reinforced article having a principal axial dimension comprising: a matrix of elastomeric rubberlike material and at least one layer of reinforcement cloth embedded interiorly within said matrix and bonded thereto, said cloth having yarns oriented in the direction of the axial dimension of the article and yarns oriented transversely to the axial dimension of the article, said yarns oriented in the direction of the axial dimension comprising the yarn structure of claim 1.
Claim 5
Dependent Claim
29 words
The invention of claim 5, wherein the glass filaments have a diameter not exceeding about 0.00015 inch, with the glass filaments having greater static length than the organic filaments.
Claim 6
Dependent Claim
23 words
The reinforced article of claim 5 wherein the organic filaments are selected from the group consisting of cotton, nylon, rayon, polyester and polypropylene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |