Patent US4099138A successfully refreshed from Google Patents.
US4099138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemically fueled laser
Assignee: McDonnell Douglas Corp
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Filing: 1976-01-12
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Granted: 1978-07-04
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Expires: 1996-01-12
Abstract
Abstract This application relates to fuel for a chemical laser in which carbon monosulfide (CS) is reacted with oxygen atoms (O) to fuel a carbon monoxide (CO) chemical laser. The use of carbon monosulfide results in faster pumping of the laser, less heating of the medium, and a lessened need for oxygen atoms in the system.
Inventors
- 👤 William Q. Jeffers
- 👤 John Daniel Kelley
- 👤 Charles E. Wiswall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:32
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/095
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
A method of producing a CO chemical laser which exhibits an increased rate of pumping reaction and reduced heating of the laser medium as compared with the use of CS 2 alone as fuel at the same molar flow rate, comprising the steps of: A. producing a fuel which is a mixture of CS and CS 2 by dissociating CS 2 and feeding said fuel to a reaction chamber, said fuel having a CS/CS 2 ratio of at least 0.3, B. simultaneously providing oxygen atoms in said reaction chamber, C. reacting said fuel and said oxygen atoms to produce carbon monoxide in an active laser state, D. and producing a laser beam from said carbon monoxide, said laser having a power output higher than the twofold increase expected from using CS rather than CS 2 as the fuel source at the same molar flow rate.
Claim 2
Independent Claim
145 words
A method of producing a CO chemical laser which exhibits an increased rate of pumping reaction and reduced heating of the laser medium as compared with the use of CS 2 alone as fuel at the same molar flow rate, comprising the steps of: A. producing a fuel which is a mixture of CS and CS 2 by dissociating CS 2 and feeding said fuel to a reaction chamber, said fuel having a CS/CS 2 ratio of at least 0.3, B. simultaneously providing oxygen atoms in said reaction chamber, C. reacting said fuel and said oxygen atoms to produce carbon monoxide in an active laser state, D. and producing a laser beam from said carbon monoxide, said laser having a power output higher than the twofold increase expected from using CS rather than CS 2 as the fuel source at the same molar flow rate.
Claim 3
Independent Claim
117 words
A method of producing a CO chemical laser comprising the steps of A. dissociating CS 2 to form a reactant which is a mixture of CS and CS 2 in which the ratio of CS/CS 2 is greater than 0.3 and feeding said reactant to a reaction chamber, B. simultaneously providing oxygen atoms in said reaction chamber, C. reacting said reactant and said oxygen atoms to produce vibrationally excited carbon monoxide in an active laser state, D. and producing a laser beam from said vibrationally excited carbon monoxide, said laser having a power output at least about 5 times greater than that resulting from using CS 2 as the fuel source at the same molar flow rate.
Claim 4
Independent Claim
117 words
A method of producing a CO chemical laser comprising the steps of A. dissociating CS 2 to form a reactant which is a mixture of CS and CS 2 in which the ratio of CS/CS 2 is greater than 0.3 and feeding said reactant to a reaction chamber, B. simultaneously providing oxygen atoms in said reaction chamber, C. reacting said reactant and said oxygen atoms to produce vibrationally excited carbon monoxide in an active laser state, D. and producing a laser beam from said vibrationally excited carbon monoxide, said laser having a power output at least about 5 times greater than that resulting from using CS 2 as the fuel source at the same molar flow rate.
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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |