US3865677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcement of elastomeric products
Assignee: Owens Corning
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Filing: 1972-12-04
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Granted: 1975-02-11
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Expires: 1992-12-04
Abstract
Abstract Glass cord composed of a plurality of gathered-together subelements such as filaments, strands, yarns and the like is combined with vulcanizable elastomeric stock material in a defined manner and according to prescribed methods as to yield a product in the nature of a curable preform or building block which is combinable with other similar building blocks or preforms composed of glass cord lengths and elastomeric stock to yield second and/or third stage building blocks or preforms which are ultimately of utility in erecting, constructing or building, by molding or other techniques, cured elastomeric products such as tires, belts and other rubber goods containing a glass cord reinforcement disposed or arranged in a particularly desirable manner as to reinforcedly impart to the ultimate structure the desired and/or optimum characteristics and/or properties of the glass cord and, of course, the inherent strength properties of the individual glass filaments making up the cord.
Inventors
- 👤 Alfred Marzocchi
- 👤 Robert R Mcauslan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:19
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/04; B60; B60C; B60C9/00; B60C9/0028; B32B2274/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24116; Y10T428/24132; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T428/249934; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31551; Y10T428/31641
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
144 words
AN ESSENTIALLY CONTINUOUS SHEET COMPOSED OF A VULCANIZABLE ELASTOMERIC MATERIAL, SAID SHEET BEING SUBDIVIDABLE INTO SMALLER UNITS OF PRESELECTED DIMENSION AND ADAPTED TO BE COMBINDED WITH OTHER LIKE PIECES OF PRESELECTED DIMENSION TO FORM, IN AGGREGATE, A VULCANIZABLE PREFORM FOR VULCANIZING INTO A DESIRED MOLDED CONFIGURATION, SAID SHEET COMPRISING: A PLURALITY OF UNITIZED LAYERS OF VULCANIZABLE ELASTOMERIC MATERIAL IN GENERALLY FACE-TO-FACE REGISTRATION MAKING UP THE THICKNESS OF SAID SHEET MATERIAL, ONE OF SAID LAYERS OF VULCANIZABLE ELASTOMERIC MATERIAL INCLUDING EMBEDDED INTERIORLY THEREIN AN ARRAY OF SEPARATE LENGTHS OF CHOPPED GLASS CORDS ARRANGED IN GENERALLY MUTUALLY PARALLEL RELATIONSHIP AND ANOTHER ONE OF SAID LAYERS OF VULCANIZABLE ELASTOMERIC MATERIAL INCLUDING EMBEDDED INTERIORLY THEREIN AN ARRAY OF SEPARATE LENGTHS OF CHOPPED GLASS CORDS IN GENERALLY MUTUALLY PARALLEL RELATIONSHIP, SAID LATTER ARRAY OF CHOPPED LENGTHS BEING ANGULARLY DISPOSED TO THE ARRAY OF CHOPPED LENGTHS IN THE FIRST-MENTIONED LAYER.
Claim 2
Dependent Claim
144 words
AN ESSENTIALLY CONTINUOUS SHEET COMPOSED OF A VULCANIZABLE ELASTOMERIC MATERIAL, SAID SHEET BEING SUBDIVIDABLE INTO SMALLER UNITS OF PRESELECTED DIMENSION AND ADAPTED TO BE COMBINDED WITH OTHER LIKE PIECES OF PRESELECTED DIMENSION TO FORM, IN AGGREGATE, A VULCANIZABLE PREFORM FOR VULCANIZING INTO A DESIRED MOLDED CONFIGURATION, SAID SHEET COMPRISING: A PLURALITY OF UNITIZED LAYERS OF VULCANIZABLE ELASTOMERIC MATERIAL IN GENERALLY FACE-TO-FACE REGISTRATION MAKING UP THE THICKNESS OF SAID SHEET MATERIAL, ONE OF SAID LAYERS OF VULCANIZABLE ELASTOMERIC MATERIAL INCLUDING EMBEDDED INTERIORLY THEREIN AN ARRAY OF SEPARATE LENGTHS OF CHOPPED GLASS CORDS ARRANGED IN GENERALLY MUTUALLY PARALLEL RELATIONSHIP AND ANOTHER ONE OF SAID LAYERS OF VULCANIZABLE ELASTOMERIC MATERIAL INCLUDING EMBEDDED INTERIORLY THEREIN AN ARRAY OF SEPARATE LENGTHS OF CHOPPED GLASS CORDS IN GENERALLY MUTUALLY PARALLEL RELATIONSHIP, SAID LATTER ARRAY OF CHOPPED LENGTHS BEING ANGULARLY DISPOSED TO THE ARRAY OF CHOPPED LENGTHS IN THE FIRST-MENTIONED LAYER.
Claim 3
Dependent Claim
23 words
A sheet material as claimed in claim 1, wherein the lengths of chopped cord range from about 1/4 inch to about 6 inches.
Claim 4
Dependent Claim
23 words
A sheet material as claimed in claim 2, wherein the lengths of cords are each formed of a multiplicity of untwisted glass filaments.
Claim 5
Dependent Claim
77 words
The sheet as claimed in claim 1 which includes a third layer of vulcanizable elastomeric material unitized with said other layers and contributing to the thickness of said sheet material, said third layer including a vulcanizable elastomeric material having embedded interiorly therein an array of separate lengths of chopped glass cords in generally mutually parallel relationship, said array of lengths being angularly disposed to the array of chopped lengths in the first layer or the second layer.
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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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |