US4414428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanded metal containing wires and filaments
Assignee: Oxford Instruments Inc
•
Filing: 1981-01-30
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Granted: 1983-11-08
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Expires: 2001-01-30
Abstract
Abstract A wire filament or multifilament wire or cable having an expanded metal or foraminous metal concentrically or semiconcentrically layered along the length of the wire so that the spaces or holes in the metal open radially of the wire or filament. The expanded or foraminous metal can be used in said wires or filaments as a strengthening layer, a conducting layer, or a diffusion barrier layer.
Inventors
- 👤 William K. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:52
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; B21C37/045; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0128; H10N60/0184; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/887; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T428/00; Y10T428/12; Y10T428/12451; Y10T428/12493; Y10T428/12771; Y10T428/12806
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
25 words
An extruded metal wire having at least two layers coaxially laminated upon and to each other and wherein at least one layer is foraminous metal.
Claim 2
Dependent Claim
25 words
An extruded metal wire having at least two layers coaxially laminated upon and to each other and wherein at least one layer is foraminous metal.
Claim 3
Dependent Claim
13 words
The wire of claim 1 wherein the foraminous metal is an expanded metal.
Claim 4
Dependent Claim
30 words
The wire of claim 2 wherein the expanded metal is used as a strengthening material and is selected from the group consisting of Nb, Ta, Ni, V, and alloys thereof.
Claim 5
Dependent Claim
22 words
The wire of claim 1 wherein the foraminous metal acts as a conductor and there are reactant elements in the other metal.
Claim 6
Dependent Claim
21 words
The wire of claim 1 wherein there are at least three metals and the foraminous metal acts as a diffusion barrier.
Claim 7
Dependent Claim
29 words
The wire of claim 5 wherein the foraminous metal acts as a diffusion barrier and is selected from the group consisting of Nb, Ta, V, Ni, and alloys thereof.
Claim 8
Dependent Claim
23 words
The wire of claim 5 wherein there is contained longitudinal strips of a barrier layer between the diffusion barrier and a reactant layer.
Claim 9
Dependent Claim
27 words
The wire of claim 1 wherein the foraminous metal acts as a conductor and is selected from the group consisting of Nb, Ta, V, and alloys thereof.
Claim 10
Dependent Claim
15 words
The wire of claim 1 wherein the foraminous metal is wrapped around a core metal.
Claim 11
Dependent Claim
23 words
The wire of claim 9 wherein the core acts as a stabilizer and is selected from the group consisting of Cu and Al.
Claim 12
Dependent Claim
32 words
The wire of claim 9 wherein the core contains at least one reactive element selected from the group consisting of Sn, Ga, Ge, Al, Si, CuSn, CuGa, SnCu, and combinations of these.
Claim 13
Dependent Claim
34 words
The wire of claim 9 wherein the core acts as a strengthening material and is formed from a metal selected from the group consisting of brass, bronze, reinforced copper, Ni alloys and Al alloys.
Claim 14
Dependent Claim
16 words
The wire of claim 1 wherein the foraminous metal is contained in a ductile matrix material.
Claim 15
Dependent Claim
26 words
The wire of claim 13 wherein the ductile matrix material is a metal selected from the group consisting of Cu, Al, bronze, tin, nickel, and brass.
Claim 16
Dependent Claim
11 words
The wire of claim 1 being contained in a cladding material.
Claim 17
Dependent Claim
25 words
The wire of claim 15 wherein the cladding material is formed from a metal selected from the group consisting of Cu, Ni, Al and bronze.
Claim 18
Dependent Claim
26 words
The wire of claim 16 wherein the cladding material is bronze containing reactant materials selected from the group consisting of Sn, Ga, Ge, Al and Si.
Claim 19
Dependent Claim
16 words
The wire of claim 1 wherein the foraminous metal is laminated to a ductile matrix material.
Claim 20
Dependent Claim
12 words
The wire of claim 1 wherein the two layers form coaxial circles.
Claim 21
Dependent Claim
12 words
The wire of claim 1 wherein the two layers form coaxial spirals.
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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) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |