US4024613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of permanently attaching metallic spacers in gaseous discharge display panels
Assignee: OI Glass Inc
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Filing: 1975-01-02
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Granted: 1977-05-24
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Expires: 1995-01-02
Abstract
Abstract There is disclosed a method of permanently attaching metallic spacers in gaseous discharge display panels by ultrasonically bonding said spacers between the glass substrates thereof to thin film metal tabs located between the electrodes. Such a method prevents any subsequent movement of the spacers after attachment and makes the spacers substantially invisible to the naked eye. The article so bonded is also an integral part of this invention.
Inventors
- 👤 Richard A. Martel
- 👤 Charles W. Salisbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:35
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/26; H01J9/261
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
37 words
A method of permanently attaching metallic spacers in a gaseous discharge display panel which comprises ultrasonically bonding said spacers to tabs of the same metal deposited on the glass substrate of said panel between the conductors thereof.
Claim 2
Independent Claim
37 words
A method of permanently attaching metallic spacers in a gaseous discharge display panel which comprises ultrasonically bonding said spacers to tabs of the same metal deposited on the glass substrate of said panel between the conductors thereof.
Claim 3
Dependent Claim
15 words
A method as in claim 1 in which the spacers, tabs and conductors are aluminum.
Claim 4
Dependent Claim
19 words
A method as in claim 1 in which the spacers and tabs are copper and the conductors are gold.
Claim 5
Dependent Claim
19 words
A method as in claim 1 in which the spacers and tabs are silver and the conductors are gold.
Claim 6
Dependent Claim
22 words
A method as in claim 1 in which the spacers and tabs are aluminum and the conductors are chromium overlayered with aluminum.
Claim 7
Dependent Claim
44 words
A method as in claim 1 in which the metal tabs about 1000 Angstroms thick and from 1/16 " to 1/4" long are vacuum deposited at from 1/2" to 2" intervals on a glass substrate between the conductors spaced at 60 lines per inch.
Claim 8
Dependent Claim
55 words
A method as in claim 1 in which metal spacers about 3 to 7 mils thick and 8 to 20 mils in diameter are ultrasonically bonded to the metal tabs and the bonded spacers, tabs and conductors coated with a dielectric layer of lead-borosilicate glass less than one mil thick and fired at 600° C.
Claim 9
Dependent Claim
17 words
A method as in claim 7 in which the dielectric layer is at least one mil thick.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |