Patent US3864807A successfully refreshed from Google Patents.
US3864807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a shaped element of fiber-reinforced material
Assignee: G RAU GmbH and Co KG
•
Filing: 1973-09-19
•
Granted: 1975-02-11
•
Expires: 1993-09-19
Abstract
Abstract A shaped element of fibre reinforced material comprises a bundle of wires, each enclosed in a jacket of matrix substance, which has been subjected to a mechanical working, such as drawing, to reduce to cross-sectional area of the wires and jackets and to bond the jackets together. The bundle of jacketed wires may be enclosed in an outer casing of the matrix substance prior to mechanical working and each jacket may consist of a tube into which a wire is threaded.
Inventors
- 👤 Friedrich Schneider
- 👤 Dieter Stockel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:19
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/002; C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/068; C22C47/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T428/00; Y10T428/12; Y10T428/12465; Y10T428/12486
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
188 words
A method for producing a shaped element formed of a homogeneous matrix substance and having intimately embedded therein a plurality of substantially circular reinforcing fibers of a diameter in the magnitude of microns, the ductility properties of said matrix substance and said fibers being substantially different, said method consisting essentially of the steps of: rigidly and metallurgically connecting to each of a plurality of substantially circular wires of reinforcing material a jacket of said matrix substance, each of said wires having a diameter in the magnitude of millimeters; arranging said plurality of thus jacketed wires in a loose bundle in contact with each other; and subjecting said bundle to a non-cutting mechanical working operation; thereby reducing the cross-sectional area of said wires and said jackets, the cross-sectional area of said wires being reduced from a magnitude of mm2 to a magnitude of 10 6mm2, mechanically bonding said jackets together into a uniform homogeneous matrix, subjecting said jacketed wires to a diffusion treatment to facilitate the mechanical bonding of said matrix, and generating said substantially circular micron sized fibers embedded in said uniform homogeneous matrix, thereby reinforcing said matrix.
Claim 2
Independent Claim
188 words
A method for producing a shaped element formed of a homogeneous matrix substance and having intimately embedded therein a plurality of substantially circular reinforcing fibers of a diameter in the magnitude of microns, the ductility properties of said matrix substance and said fibers being substantially different, said method consisting essentially of the steps of: rigidly and metallurgically connecting to each of a plurality of substantially circular wires of reinforcing material a jacket of said matrix substance, each of said wires having a diameter in the magnitude of millimeters; arranging said plurality of thus jacketed wires in a loose bundle in contact with each other; and subjecting said bundle to a non-cutting mechanical working operation; thereby reducing the cross-sectional area of said wires and said jackets, the cross-sectional area of said wires being reduced from a magnitude of mm2 to a magnitude of 10 6mm2, mechanically bonding said jackets together into a uniform homogeneous matrix, subjecting said jacketed wires to a diffusion treatment to facilitate the mechanical bonding of said matrix, and generating said substantially circular micron sized fibers embedded in said uniform homogeneous matrix, thereby reinforcing said matrix.
Claim 3
Dependent Claim
31 words
A method as claimed in claim 1, further consisting essentially of enclosing said bundle of jacketed wires in an outer casing of matrix substance prior to said step of mechanical working.
Claim 4
Dependent Claim
28 words
A method as claimed in claim 2, wherein said outer casing has a shape designed to suit the geometrical form which the element has after the mechanical working.
Claim 5
Dependent Claim
28 words
A method as claimed in claim 1, wherein said plurality of jacketed wires are arranged about a core of matrix substance prior to said step of mechanical working.
Claim 6
Dependent Claim
25 words
A method as claimed in cLaim 1, wherein each said jacket of matrix substancee is a tube into which one of said wires is threaded.
Claim 7
Dependent Claim
22 words
A method as claimed in claim 1, wherein said matrix substance is silver and said wire is a copper-coated austenitic chromium-nickel steel.
Claim 8
Dependent Claim
15 words
A method as claimed in claim 1, wherein said mechanical working is effected by drawing.
References Cited (Backward Citations)
US1125161A
Cited
US3187422A
Cited
US3029496A
Cited
US3095642A
Cited
US3596349A
Cited
US3609855A
Cited
US3667108A
Cited
US3795042A
Cited
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 |