US4581053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing woven fiber reinforced glass matrix composite articles
Assignee: RTX Corp
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Filing: 1982-05-25
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Granted: 1986-04-08
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Expires: 2002-05-25
Abstract
Abstract A method of producing fiber reinforced glass composites of complex shapes (e.g. having curved portions such as cylindrical) is disclosed. A continuous length of fiber, such as silicon carbide, is passed through a slurry of glass powder and a carrier liquid containing a polymeric binder to impregnate the fiber. The impregnated fiber is next dried and woven into a predetermined structural shape. Plies of the woven fiber cut to near net shape may also be stacked into the desired shape. The thus laid fibers are hot pressed into a fiber reinforced glass matrix composite article having glass matrix distributed substantially uniformly therethrough and multiaxial strength in at least three mutually exclusive perpendicular directions.
Inventors
- 👤 Karl M. Prewo
- 👤 George K. Layden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:54
CPC Classifications
C; C03; C03C; C03C14/00; C03C14/002; C03C2214/00; C03C2214/02; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A method of producing a high strength fiber reinforced glass matrix composite article, particularly adapted to making such articles of complex shape, comprising passing a continuous length of a plurality of high temperature stable silicon carbide, graphite or alumina fibers through a slurry of glass powder selected from the group consisting of aluminosilicate, lithium aluminosilicate, magnesium aluminosilicate, borosilicate, or mixtures thereof, and a carrier liquid containing a polymeric binder to impregnate the fibers, drying the impregnated fibers, weaving the impregnated fibers into a predetermined structural shape, and hot pressing the woven fibers into a fiber reinforced glass matrix composite article having multiaxial strength in three mutually exclusive perpendicular directions.
Claim 2
Independent Claim
109 words
A method of producing a high strength fiber reinforced glass matrix composite article, particularly adapted to making such articles of complex shape, comprising passing a continuous length of a plurality of high temperature stable silicon carbide, graphite or alumina fibers through a slurry of glass powder selected from the group consisting of aluminosilicate, lithium aluminosilicate, magnesium aluminosilicate, borosilicate, or mixtures thereof, and a carrier liquid containing a polymeric binder to impregnate the fibers, drying the impregnated fibers, weaving the impregnated fibers into a predetermined structural shape, and hot pressing the woven fibers into a fiber reinforced glass matrix composite article having multiaxial strength in three mutually exclusive perpendicular directions.
Claim 3
Independent Claim
129 words
A method of producing a high strength fiber reinforced glass matrix composite article, particularly adapted to making such articles of complex shape, comprising passing a continuous length of a plurality of high temperature stable silicon carbide, graphite or alumina fibers through a slurry of glass powder selected from the group consisting of aluminosilicate, lithium aluminosilicate, magnesium aluminosilicate, borosilicate, or mixtures thereof, and a carrier liquid containing a polymeric binder to impregnate the fibers, drying the impregnated fibers, weaving the impregnated fibers, cutting the woven fibers and stacking a plurality of layers of said cut woven fibers on each other to form a substantially final composite shape, and hot pressing the stacked fibers into a fiber reinforced glass matrix composite article having multiaxial strength in three mutually exclusive perpendicular directions.
Claim 4
Independent Claim
129 words
A method of producing a high strength fiber reinforced glass matrix composite article, particularly adapted to making such articles of complex shape, comprising passing a continuous length of a plurality of high temperature stable silicon carbide, graphite or alumina fibers through a slurry of glass powder selected from the group consisting of aluminosilicate, lithium aluminosilicate, magnesium aluminosilicate, borosilicate, or mixtures thereof, and a carrier liquid containing a polymeric binder to impregnate the fibers, drying the impregnated fibers, weaving the impregnated fibers, cutting the woven fibers and stacking a plurality of layers of said cut woven fibers on each other to form a substantially final composite shape, and hot pressing the stacked fibers into a fiber reinforced glass matrix composite article having multiaxial strength in three mutually exclusive perpendicular directions.
Claim 5
Dependent Claim
18 words
The method of claim 2 wherein the carrier liquid is water and the polymeric binder is acrylic resin.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein the carrier liquid is water and the polymeric binder is acrylic resin.
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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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |