US3823252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conducting element having bundled substantially parallel crystalline conductors and process for manufacture
Assignee: OI Glass Inc
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Filing: 1972-10-26
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Granted: 1974-07-09
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Expires: 1992-10-26
Abstract
Abstract Disclosed is a method for forming an array of conductive crystalline dendrites of reduced rutile in a glass-ceramic insulating matrix by crystallizing certain compositions containing titania and silica in a non-oxidizing atmosphere under the influence of a thermal gradient to form a parallel array of conductive reduced rutile dendrites. Several of such dendrites are joined to form a coaxial bundle (i.e., a bundle having substantially parallel conductors) through the matrix by means of conductive caps on opposing faces of the matrix.
Inventors
- 👤 A Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:41
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; H01J31/065; C; C03; C03C; C03C10/00; C03C10/0009; C03C10/0036; H01B; H01B1/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
25 words
The method of claim 1 further including the step of oxidizing the matrix surface which is not covered by said caps to the non-conductive state.
Claim 2
Dependent Claim
22 words
The method of claim 1 wherein adjacent caps are electrically isolated from each other by a network of electrically conductive grounding shields.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein said crystallizable composition consists essentially of:
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein said crystallizable composition consists essentially of:
Claim 5
Dependent Claim
11 words
The method of claim 1 wherein the resulting matrix is glass-ceramic.
Claim 6
Dependent Claim
11 words
The method of claim 1 wherein the resulting matrix is glassy.
Claim 7
Dependent Claim
85 words
An electrically conductive element comprising a substantially parallel array of discrete, conductive, crystalline dendrites of reduced rutile embedded in and passing through an insulating matrix, said dendrites terminating on opposing surfaces of said matrix, the improvement wherein a pattern of paired conductive caps is positioned on each of said opposing surfaces of said matrix, said caps being in electrical contact with corresponding terminal points of a plurality of individual conductive dendrites to define a bundle of conductive dendrites between each of said pair of caps.
Claim 8
Dependent Claim
24 words
The electrically conductive element of claim 8 wherein adjacent caps are electrically isolated from each other by a network of electrically conductive grounding shields.
Claim 9
Dependent Claim
18 words
The element of claim 8 wherein the distribution of dendrites is at least about 50,000 per square inch.
Claim 10
Dependent Claim
22 words
The element of claim 8 wherein the diameter of said dendrites are in the range of about 0.1 to about 1.5 mil.
Claim 11
Dependent Claim
25 words
The element of claim 8 wherein the resistance of said dendrites is in the range of about 300 to about 1,000 ohms per linear inch.
Claim 12
Dependent Claim
17 words
The element of claim 8 wherein the resistivity of the matrix is at least about 1010 ohm-cm.
Claim 13
Dependent Claim
87 words
An electrically conductive element comprising a substantially parallel array of discrete, conductive, crystalline dendrites of reduced rutile embedded in an insulating matrix, said matrix having a pattern of paired conductive caps positioned on opposing surfaces thereof, said caps being in electrical contact with corresponding terminal points of a plurality of individual conductive dendrites to define a bundle of conductive dendrites through said matrix between each of said pair of caps, wherein the matrix surface which is not covered by said caps is free from said conductive dendrites.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |