US3745481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for obtaining uniform discharges in electrically pumped gas lasers
Assignee: United States Atomic Energy Commission
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Filing: 1972-06-13
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Granted: 1973-07-10
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Expires: 1992-06-13
Abstract
Abstract Uniform ''''glow-type'''' electrical discharges are established in gaseous laser media at atmospheric pressure through use of dielectric electrodes consisting of ferroelectric ceramic materials. These electrodes may be used to produce both volume ionization and molecular excitation of the media or alternatively a second set of electrodes operating transversely to the dielectric electrodes may be used for molecular excitation, i.e., electrical pumping, of the gas volume.
Inventors
- 👤 G Erickson
- 👤 T Stratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:47
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/097; H01S3/0975; H01S3/02; H01S3/03; H01S3/038; H01S3/0388
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
32 words
The laser of claim 1 having means operatively connected to said electrodes for producing a potential across said electrodes sufficient to provide both volume ionization and molecular excitation of the laser gas.
Claim 2
Dependent Claim
14 words
The laser of claim 1 wherein said bulk ferroelectric ceramic is substantially barium titanate.
Claim 3
Dependent Claim
17 words
The laser of claim 1 wherein said lasing gas is a mixture of He, CO2, and N2.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |