US3919018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcement of rubber
Assignee: Owens Corning
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Filing: 1973-04-05
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Granted: 1975-11-11
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Expires: 1993-04-05
Abstract
Abstract A fabric containing organic yarns and glass yarns so woven that the composite reinforcement is extensible, due to the inherent stretchability of the organic and due to the particular configuration in placement and orientation of the glass component, until the glass component is in line with the direction of tensile force, whereupon the glass yarns assume the load; the organic yarns having, in the meantime, become stretched to some point short of the elastic limit or to its ultimate elastic limit.
Inventors
- 👤 Charles F Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:08
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/0028; D; D03; D03D; D03D11/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10855; Y10T152/10873; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
190 words
A METHOD OF PRODUCING A SHEET GOOD ADAPTED FOR REIN FORCEMENT OF RUBBER PRODUCTS, SAID METHOD COMPRISING: WEAVING A FABRIC OF (1) STRANDS OF A FIRST MATERIAL WHICH EXHIBITS SHRINKAGE ON EXPOSURE TO A STIMULUS AND (2) STRANDS OF A SECOND MATERIAL WHICH DOES NOT EXHIBIT SHRINKAGE ON EXPOSURE TO THE SAME STIMULUS, SAID WEAVING BEING PERFORMED IN SUCH PRESELECT MANNER AS TO PRODUCE A PATTERN OF WEAVE CHARACTERIZED IN THAT THE STRANDS OF SAID SECOND MATERIAL EXHIBIT A FREQUENCY OF UPS AND DOWNS OR SINUOUSITY WHICH IS GRAETER THAN THE FREQUENCY OF UPS AND DOWNS OR SINOUSITY OF THE SAID STRANDS OF SAID FIRST MATERIAL, WHEREBY STRANDS FORMED OF SAID SECOND MATERIAL ARE LONGER PER GIVEN LENGTH OF WOVEN FABRIC THAN THE STRANDS OF SAID FIRST MATERIAL, EMBEDDING SAID WOVEN FABRIC COMPLETELY INTERIORLY OF A VULCANIZABLE ELASTOMERIC MATRIX TO THEREBY FORM A NONPOROUS COMPOSITE SHEET GOOD AND EXPOSING SAID COMPOSITE SHEET GOOD TO A STIMULUS SELECTED TO CAUSE SHRINKAGE OF SAID STRANDS OF SAID FIRST MATERIAL WHEREBY SAID STRANDS OF SAID SECOND MATERIAL BECOME MORE CONVOLUTED IN CONFIGURATION, THEREBY PROVIDING INCREASED SECUREMENT OF SAID FABRIC WITH SAID ELASTOMERIC MATRIX.
Claim 2
Independent Claim
190 words
A METHOD OF PRODUCING A SHEET GOOD ADAPTED FOR REIN FORCEMENT OF RUBBER PRODUCTS, SAID METHOD COMPRISING: WEAVING A FABRIC OF (1) STRANDS OF A FIRST MATERIAL WHICH EXHIBITS SHRINKAGE ON EXPOSURE TO A STIMULUS AND (2) STRANDS OF A SECOND MATERIAL WHICH DOES NOT EXHIBIT SHRINKAGE ON EXPOSURE TO THE SAME STIMULUS, SAID WEAVING BEING PERFORMED IN SUCH PRESELECT MANNER AS TO PRODUCE A PATTERN OF WEAVE CHARACTERIZED IN THAT THE STRANDS OF SAID SECOND MATERIAL EXHIBIT A FREQUENCY OF UPS AND DOWNS OR SINUOUSITY WHICH IS GRAETER THAN THE FREQUENCY OF UPS AND DOWNS OR SINOUSITY OF THE SAID STRANDS OF SAID FIRST MATERIAL, WHEREBY STRANDS FORMED OF SAID SECOND MATERIAL ARE LONGER PER GIVEN LENGTH OF WOVEN FABRIC THAN THE STRANDS OF SAID FIRST MATERIAL, EMBEDDING SAID WOVEN FABRIC COMPLETELY INTERIORLY OF A VULCANIZABLE ELASTOMERIC MATRIX TO THEREBY FORM A NONPOROUS COMPOSITE SHEET GOOD AND EXPOSING SAID COMPOSITE SHEET GOOD TO A STIMULUS SELECTED TO CAUSE SHRINKAGE OF SAID STRANDS OF SAID FIRST MATERIAL WHEREBY SAID STRANDS OF SAID SECOND MATERIAL BECOME MORE CONVOLUTED IN CONFIGURATION, THEREBY PROVIDING INCREASED SECUREMENT OF SAID FABRIC WITH SAID ELASTOMERIC MATRIX.
Claim 3
Dependent Claim
18 words
The method as claimed in claim 1, wherein said strands of said second material bear an anchoring agent.
Claim 4
Dependent Claim
15 words
The method as claimed in claim 2, wherein said anchoring agent is an amino silane.
Claim 5
Dependent Claim
88 words
A method as claimed in claim 1, wherein strands of a third material, which has an extensibility different from the extensibilities of either said strands of said first material or said strands of said second material, are included in said weaving of strands (1) and (2) to produce a pattern of weave characterized in that the strands of said third material exhibit a frequency of ups and downs or sinuosity depending on the relationship between its extensibility and that of the strands of said first and second materials.
Claim 6
Dependent Claim
45 words
A method as claimed in claim 1, wherein said strands of said second material are formed of vitreous filaments of relatively small extensibility and said strands of said first material are formed of a material having an extensibility greater than that of the vitreous filaments.
Claim 7
Dependent Claim
70 words
A method as claimed in claim 5, wherein strands of a third material having an extensibility differing from that of either the vitreous filaments or the strands of said second material are interwoven in said weaving of strands (1) and (2), whereby the resulting composite sheet good exhibits, on exposure to tensile forces, an additional level of resistance to stress as progressive tensile forces are exerted on said sheet good.
Claim 8
Dependent Claim
36 words
A method as claimed in claim 1 wherein said woven fabric is embedded by calender coating both sides with an elastomer to form a nonporous composite elastomeric sHeet in which said woven fabric is completely embedded.
Claim 9
Dependent Claim
28 words
A method as claimed in claim 1, wherein said method includes the steps of converting said sheet into appropriate geometric shapes such as rectangles, trapezoids, strips, bands, etc.
Claim 10
Dependent Claim
32 words
In the method of claim 1, the improvement wherein said sheet good is converted into appropriate geometric shapes such as rectangles, trapezoids, strips, bands, etc., and thereafter incorporated into elastomeric rubber products.
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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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |