US3761838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room temperature co laser
Assignee: Northrop Grumman Corp
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Filing: 1970-09-11
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Granted: 1973-09-25
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Expires: 1990-09-11
Abstract
Abstract A high efficiency, high power carbon monoxide laser continuously operable at room temperature utilizing as a gaseous mixture 0.50 to 5.0 torr of CO, 25 to 500 torr He, 2 to 50 torr N2 and 0.010 to 2 torr of O2 or NO. The efficiency of the laser at room temperature can be further improved by adding 1 to 5.0 torr xenon to the gaseous mixture. Additionally, the efficiency can be further improved by utilizing mercury vapor in the gaseous discharge.
Inventors
- 👤 M Bhaumik
- 👤 D Diem
- 👤 M Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:19
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/031; H01S3/14; H01S3/22; H01S3/223; H01S3/2232
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
47 words
The gaseous composition of claim 1 comprising: 1.8 to 5.0 torr CO 50 to 63 torr He 12 to 15 torr N2 and an amount of a gas selected from the group consisting of O2 and NO equivalent to about 0.07 percent of the amount of CO.
Claim 2
Dependent Claim
13 words
The composition of claim 1 further comprising: 1.0 to 5.0 torr of xenon.
Claim 3
Dependent Claim
75 words
In a method of generating a carbon monoxide laser at room temperature in a lasing tube under prescribed lasing conditions, the improvement therein which comprises introducing into the lasing tube a gaseous composition comprising: 0.50 to 5.0 torr CO 25 to 500 torr He 2 to 50 torr N2 an amount of a gas selected from the group consisting of O2 and NO equivalent to from 0.01 to 2 percent of the amount of CO.
Claim 4
Dependent Claim
50 words
The method of claim 4 wherein the gaseous composition comprises: 1.8 to 5.0 torr CO 50 to 63 torr He 12 to 15 torr N2 and an amount of a gas selected from the group consisting of O2 and NO equivalent to about 0.07 percent of the amount of CO.
Claim 5
Dependent Claim
22 words
0 TORR XENON TO THE GASEOUS MIXTURE. ADDITIONALLY, THE EFFICIENCY CAN BE FURTHER IMPROVED BY UTILIZING MERCURY VAPOR IN THE GASEOUS DISCHARGE.
Claim 6
Dependent Claim
19 words
The method of claim 4 further comprising adding from 1.0 to 5 torr xenon to the gaseous mixture used.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |