US3882587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a fibre-reinforced material
Assignee: G RAU GmbH and Co KG
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Filing: 1973-12-03
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Granted: 1975-05-13
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Expires: 1993-12-03
Abstract
Abstract A composite fibre-reinforced material is produced by continuously advancing a jacketing material, initially in strip form, and a plurality of sheathed wires so that the wires become enclosed by the jacketing material. The material of the jacket may or may not be the same as that of the sheaths. The wires and jacket are then jointly subjected to plastic deformation and heat treatment so that the wires become fibres and the sheaths become bonded together into a homogeneous matrix material. The exterior surfaces of the jacket material are lubricated to aid passage through the shaping tools.
Inventors
- 👤 Friedrich Schneider
- 👤 Dieter Stockel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:13
CPC Classifications
C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/068; B; B21; B21C; B21C37/00; B21C37/04; B21C37/047; B22; B22F; B22F2998/00; Y; Y10; Y10S; Y10S29/00; Y10S29/047; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
208 words
A method for producing a composite shaped element formed of a homogeneous matrix substance having intimately embedded therein a plurality of reinforcing fibers of a material different from that of said matrix substance and of a material capable of structurally reinforcing said matrix substance, said method consisting essentially of: rigidly and metallurgically connecting to each of a plurality of wires of a reinforcing material a sheath of said matrix substance; arRanging said plurality of thus sheathed wires in a bundle in contact with each other; continuously advancing said bundle of sheathed wires in a longitudinal direction; encasing the thus advancing bundle of sheathed wires in a jacket of jacketing material; continuously applying a lubricant to the exterior surface of said thus advancing jacket while maintaining the interior surface of said jacket and the exterior surfaces of said sheathed wires free of said lubricant and in a metallic bright condition; and subjecting said thus lubricated advancing bundle of sheathed wires to a plastic reduction working operation, and thereby reducing the cross-sectional area of said wires to form reinforcing fibers, while mechanically bonding said sheaths into a uniform homogeneous matrix, to thus form said shaped element of homogeneous matrix substance having embedded therein said fibers, and thereby reinforcing said matrix.
Claim 2
Independent Claim
208 words
A method for producing a composite shaped element formed of a homogeneous matrix substance having intimately embedded therein a plurality of reinforcing fibers of a material different from that of said matrix substance and of a material capable of structurally reinforcing said matrix substance, said method consisting essentially of: rigidly and metallurgically connecting to each of a plurality of wires of a reinforcing material a sheath of said matrix substance; arRanging said plurality of thus sheathed wires in a bundle in contact with each other; continuously advancing said bundle of sheathed wires in a longitudinal direction; encasing the thus advancing bundle of sheathed wires in a jacket of jacketing material; continuously applying a lubricant to the exterior surface of said thus advancing jacket while maintaining the interior surface of said jacket and the exterior surfaces of said sheathed wires free of said lubricant and in a metallic bright condition; and subjecting said thus lubricated advancing bundle of sheathed wires to a plastic reduction working operation, and thereby reducing the cross-sectional area of said wires to form reinforcing fibers, while mechanically bonding said sheaths into a uniform homogeneous matrix, to thus form said shaped element of homogeneous matrix substance having embedded therein said fibers, and thereby reinforcing said matrix.
Claim 3
Dependent Claim
40 words
A method as claimed in claim 1, wherein said step of encasing comprises advancing a strip of said jacketing material with said advancing bundle of sheathed wires, and deforming said strip to form an open-seam tube enclosing said advancing bundle.
Claim 4
Dependent Claim
21 words
A method as claimed in claim 2, further comprising applying to the outer surface of said jacket a plastically deformable coating.
Claim 5
Dependent Claim
30 words
A method as claimed in claim 1, wherein said step of encasing comprises helically winding around said advancing bundle of sheathed wires at least one layer of said jacketing material.
Claim 6
Dependent Claim
37 words
A method as claimed in claim 1, wherein said jacketing material is different from said matrix substance, said method further comprising removing said jacketing material from said shaped element, while avoiding the removal of said matrix substance.
Claim 7
Dependent Claim
41 words
A method as claimed in claim 5, further comprising forming a plurality of said shaped elements into a further bundle, and subjecting said thus formed further bundle to a plastic reduction working operation, to thereby form a further reduced shaped element.
Claim 8
Dependent Claim
20 words
A method as claimed in claim 1, wherein said step of arranging comprises stranding said sheathed wires into a bundle.
Claim 9
Dependent Claim
20 words
A method as claimed in claim 1, wherein said step of arranging comprises plaiting said sheathed wires into a bundle.
Claim 10
Independent Claim
172 words
A method for producing a composite shaped element formed of a homogeneous matrix substance having intimately embedded therein a plurality of reinforcing fibers of a material different from that of said matrix substance and of a material capable of structurally reinforcing said matrix substance, said method consisting essentially of: rigidly and metallurgically connecting to each of a plurality of wires of a reinforcing material a sheath of said matrix substance; arranging said plurality of thus sheathed wires in a bundle in contact with each other; encasing said bundle of sheathed wires in a jacket of jacketing material; subjecting said thus encased jacketed bundle of sheathed wires to a plastic reduction working operation, and thereby reducing the cross-sectional area of said wires to form reinforcing fibers, while mechanically bonding said sheaths into a uniform homogeneous matrix, to thus form said shaped element of homogeneous matrix substance having embedded therein said fibers, and thereby reinforcing said matrix; and removing said jacketing material from said shaped element, while avoiding the removal of said matrix substance.
Claim 11
Independent Claim
172 words
A method for producing a composite shaped element formed of a homogeneous matrix substance having intimately embedded therein a plurality of reinforcing fibers of a material different from that of said matrix substance and of a material capable of structurally reinforcing said matrix substance, said method consisting essentially of: rigidly and metallurgically connecting to each of a plurality of wires of a reinforcing material a sheath of said matrix substance; arranging said plurality of thus sheathed wires in a bundle in contact with each other; encasing said bundle of sheathed wires in a jacket of jacketing material; subjecting said thus encased jacketed bundle of sheathed wires to a plastic reduction working operation, and thereby reducing the cross-sectional area of said wires to form reinforcing fibers, while mechanically bonding said sheaths into a uniform homogeneous matrix, to thus form said shaped element of homogeneous matrix substance having embedded therein said fibers, and thereby reinforcing said matrix; and removing said jacketing material from said shaped element, while avoiding the removal of said matrix substance.
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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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |