Patent US4287074A successfully refreshed from Google Patents.
Patent US4581053A successfully refreshed from Google Patents.
US4581053A
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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 02:51
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.
References Cited (Backward Citations)
US4265968A
Cited
US4284664A
Cited
US4368234A
Cited
US4324843A
Cited
US4357286A
Cited
US4370390A
Cited
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 |