← Back to Patent Explorer
US3701045A Expired / Lapsed US ⏱️ 0.0 years remaining

Chemical mixing laser

Assignee: RTX Corp
•
Filing: 1970-10-23
•
Granted: 1972-10-24
•
Expires: 1990-10-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Primary reactants in nonstoichiometric proportions interact chemically in a reaction chamber to produce a high temperature, high pressure gas containing a substantial percentage of free atoms. Aerodynamic expansion of the gas effluent from the reaction chamber preserves the free atoms in an unrecombined condition. A secondary reactant is admixed with the main gas stream after the expansion process and reacts chemically with the free atoms to produce a gas which is in a vibrational state population inversion condition and which lases in an appropriate optical cavity.

Inventors

  • 👤 Barry Robert Bronfin
  • 👤 Wayne Gregory Burwell
  • 👤 Richard August Meinzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 03:17
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/095; H01S3/0951; H01S3/0953

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 139 words
The method producing laser energy which comprises: providing free atoms by chemically reacting at least two primary reactants in an exothermic chemical reaction in nonstoichiometric proportions in a high pressure reaction chamber producing a first gas mixture which contains the free atoms; expanding the first gas mixture from a condition of relatively high pressure and high stagnation temperature in the reaction chamber to a condition of reduced pressure and reduced translational temperature, freezing the free atoms to inhibit recombination of the free atoms; reacting a second reactant with the free atoms to produce a second gas mixture including an active laser gas and to provide in the laser gas an inverted population of vibrationally excited molecules; expanding the second gas mixture; and passing the second gas through means for providing stimulated emission of radiation from the active laser gas.
Claim 2
Independent Claim 180 words
The method of producing laser energy which comprises: chemically reacting at least two primary reactants in an exothermic chemical reaction in nonstoichiometric proportions in a high pressure reaction chamber, producing reaction products containing free atoms; injecting a diluent gas into the reaction products to lower the stagnation temperature of the reaction products to minimize the recombination of free atoms, and to form a first gas mixture; expanding the first gas mixture from a condition of relatively high pressure and high stagnation temperature in the reaction chamber to a condition of reduced pressure and reduced translational temperature, freezing the free atoms to inhibit recombination of the free atoms; reacting a secondary reactant with the free atoms to form a second gas mixture and to provide an inverted population of vibrationally excited molecules of an active laser gas; admixing additional amounts of the diluent gas to reduce the translational temperature of the second gas mixture forming a third gas mixture; expanding the third mixture; and passing the third mixture through means for producing stimulated emission of radiation from the active laser gas.
Claim 3
Dependent Claim 63 words
The method according to claim 3 wherein a first of said primary reactants is selected from the group consisting of deuterium, sulfur, carbon disulfide, cyanogen, hydrogen and carbon; a second of said primary reactants is fluorine; the secondary reactant is selected from the group consisting of hydrogen and deuterium; and the diluent is selected from the group consisting of helium, argon and nitrogen.
Claim 4
Dependent Claim 73 words
The method according to claim 3 wherein a first of said primary reactants is selected from the group consisting of hydrogen, deuterium, hydrazine and ammonia; a second of said primary reactants is selected from the group consisting of fluorine, chlorine trifluoride and chlorine tetrafluoride; the secondary reactant is selected from the group consisting of fluorine, sulfur hexafluoride and carbon tetrafluoride; and the diluent is selected from the group consisting of argon and nitrogen.
Claim 5
Dependent Claim 72 words
The method according to claim 3 wherein a first of said primary reactants is selected from the group consisting of hydrogen, deuterium, hydrazine and ammonia; a second of said primary reactants is selected from the group consisting of fluorine, chlorine trifluoride and chlorine pentafluoride; the secondary reactant is selected from the group consisting of chlorine, bromine and iodine; and the diluent is selected from the group consisting of helium, argon and nitrogen.
Claim 6
Dependent Claim 68 words
The method according to claim 3 wherein a first of said primary reactants is hydrogen; a second of said primary reactants is selected from the group consisting of carbon trifluoride, carbon pentafluoride and a mixture of fluorine and chlorine; the secondary reactant is selected from the group consisting of hydrogen bromide and hydrogen iodine; and the diluent is selected from the group consisting of helium, argon and hydrogen.
Claim 7
Dependent Claim 59 words
The method according to claim 3 wherein a first of said primary reactants is hydrogen; a second of said primary reactant is selected from the group consisting of bromine trifluoride, bromine pentafluoride and a mixture of fluorine and chlorine; the secondary reactant is hydrogen iodide; and the diluent is selected from the group consisting of helium, argon and nitrogen.
Claim 8
Independent Claim 163 words
The method of producing laser energy which comprises: reacting hydrogen and fluorine exothermically in nonstoichiometric proportions in a high pressure reaction chamber, producing reaction products containing free fluorine atoms; injecting helium as a diluent gas into the reacTion chamber to lower the stagnation temperature of the reaction products and minimize the recombination of the free fluorine atoms, forming a first gas mixture; expanding the first gas mixture to a translational temperature lower than 200*F and a pressure lower than 100 Torr, freezing the free atoms to inhibit recombination of the free atoms; reacting hydrogen molecules with the free fluorine atoms to form a second gas mixture to provide an inverted population of vibrationally excited molecules of hydrogen fluoride; admixing additional amounts of helium to reduce the translational temperature of the second gas mixture and forming a third gas mixture; expanding the third gas mixture; and passing the third gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 9
Independent Claim 132 words
The method of producing laser energy which comprises: reacting hydrogen and fluorine exothermically with a fluorine-to-hydrogen molar ratio of approximately 1 to 5:1, preferably 3:1 in a reaction chamber, producing a first gas mixture which contains substantially all of the excess fluorine as free fluorine atoms; expanding the first gas mixture from a stagnation temperature of approximately 3,500*F in the reaction chamber to a condition of approximately 100*F and a pressure of approximately 30 Torr, freezing the free atoms of fluorine to inhibit recombination of the free atoms; reacting deuterium molecules with the free fluorine atoms to form a second gas mixture and to provide an inverted population of vibrationally excited deuterium fluoride; and passing the second gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 10
Independent Claim 198 words
The method of producing laser energy which comprises: reacting hydrogen and fluorine exothermically with a fluorine-to-hydrogen molar ratio of approximately 1 to 5:1, preferably about 3:1 in a reaction chamber, producing reaction products which contain substantially all of the excess fluorine as free fluorine atoms; injecting into the reaction chamber a sufficient amount of sulfur hexafluoride diluent to establish a first gas mixture having a sulfur hexafluoride volume consistency of from 15 to 30 percent; expanding the first gas mixture from a stagnation temperature of approximately 3,500*F in the reaction chamber to a condition of approximately 100*F and a pressure of approximately 30 Torr, freezing the free atoms of fluorine to inhibit recombination of the free atoms; reacting deuterium molecules with the free fluorine atoms to form a second gas mixture and to provide an inverted population of vibrationally excited deuterium fluoride; admixing additional amounts of sulfur hexafluoride to reduce the translational temperature of the second gas mixture to approximately 100*F forming a third gas mixture; expanding the third gas mixture to a pressure of less than 100 Torr; and passing the third gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 11
Independent Claim 195 words
The method of producing laser energy which comprises: reacting hydrogen and fluorine exothermically with a fluorine-to-hydrogen molar ratio of approximately 1 to 5:1, preferably 3:1 in a reaction chamber, producing reaction products which contain substantially all of the excess fluorine as free fluorine atoms; injecting into the reaction chamber a sufficient amounts of helium diluent gas to establish a first gas mixture having a helium volume consistency of about 30 to 60 percent; expanding the first gas mixture from a stagnation temperature of approximately 3,500*F in the reaction chamber to a condition of approximately 100*F and a pressure of approximately 30 Torr, freezing the free atoms of fluorine to inhibit recombination of thE free atoms; reacting deuterium molecules with the free fluorine atoms to form a second gas mixture and to provide an inverted population of vibrationally excited deuterium fluoride; admixing additional amounts of helium to reduce the translational temperature of the second gas mixture to approximately 100*F forming a third gas mixture; expanding the third gas mixture to a pressure of less than 100 Torr; and passing the third gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 12
Independent Claim 133 words
The method of producing laser energy which comprises: reacting deuterium and fluorine exothermically with a fluorine-to-deuterium molar ratio of approximately 1 to 5:1, preferably about 3:1 in a reaction chamber producing a first gas mixture which contain substantially all of the excess fluorine as free fluorine atoms; expanding the first gas mixture from a stagnation temperature of approximately 3,500*F in the reaction chamber to a condition of approximately 10*F and a pressure of approximately 30 Torr, freezing the free atoms of fluorine to inhibit recombination of the free atoms; reacting hydrogen molecules with the free fluorine atoms to form a second gas mixture and to provide an inverted population of vibrationally excited hydrogen fluoride; and passing the second gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 13
Independent Claim 198 words
The method of producing laser energy which comprises: reacting deuterium and fluorine exothermically with a fluorine-to-deuterium molar ratio of approximately 1 to 5:1, preferably about 3:1 in a reaction chamber, producing reaction products which contain substantially all of the excess fluorine as free fluorine atoms; injecting into the reaction chamber a sufficient amount of sulfur hexafluoride diluent to establish a first gas mixture having a sulfur hexafluoride volume consistency of from 15 to 30 percent; expanding the first gas mixture from a stagnation temperature of approximately 3,500*F in the reaction chamber to a condition of approximately 100*F and a pressure of approximately 30 Torr, freezing the free atoms of fluorine; to inhibit recombination of the free atoms; reacting hydrogen molecules with the free fluorine atoms to form a second gas mixture and to provide an inverted population of vibrationally excited hydrogen fluoride; admixing additional amounts of sulfur hexafluoride to reduce the translational temperature of the second gas mixture to approximately 100*F forming a third gas mixture; expanding the third gas mixture to a pressure of less than 100 Torr; and passing the third gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 14
Independent Claim 193 words
The method of producing laser energy which comprises: reacting deuterium and fluorine exothermically with a fluorine-to-deuterium molar ratio of approximately 1 to 5:1, preferably about 3:1 in a reaction chamber, producing reaction products which contain substantially all of the excess fluorine as free fluorine atoms; injecting into the reaction chamber a sufficient amount of helium diluent to establish a first gas mixture having a helium volume consistency of from 30 to 60 percent; expanding the first gas mixture in the reaction chamber from a stagnation temperature of approximately 3,500*F to a condition of approximately 100*F and a pressure of approximately 30 Torr, freezing the free atoms of fluorine to inhibit recombination of the free atoms; reacting hydrogen molecules with a free fluorine atoms to form a second gas mixture and to provide an inverted population of vibrationally excited hydrogen fluoride; admixing additional amounts of helium to reduce the temperature of the second gas mixture to aPproximately 100*F forming a third gas mixture; expanding the third gas mixture to a pressure of less than 100 Torr; and passing the third gas mixture means for providing stimulated emission of radiation from the active laser gas.
Claim 15
Independent Claim 127 words
The method of producing laser energy which comprises: reacting hydrogen and fluorine exothermically with a fluorine-to-hydrogen molar ratio of approximately 0.6 to 0.2:1, preferably about 0.5:1, in a reaction chamber producing a first gas mixture which contains free hydrogen atoms; expanding the first gas mixture from a stagnation temperature of approximately 4,000*F in a reaction chamber to a condition of approximately 100*F and a pressure of approximately 30 Torr, freezing the free hydrogen atoms to inhibit recombination of the free atoms; reacting additional fluorine containing molecules with the free hydrogen atoms to form a second gas mixture and to provide an inverted population of vibrationally excited hydrogen fluoride; and passing the second gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 16
Dependent Claim 73 words
The method according to claim 3 wherein a first of said primary reactants is selected from the group consisting of cyanogen, lithium, carbon disulfide and carbon; a second of said primary reactants is selected from the group consisting of oxygen, ozone and oxygen difluoride; the secondary reactant is selected from the group consisting of carbon disulfide and carbon suboxide; and the diluent is selected from the group consisting of helium argon and nitrogen.
Claim 17
Independent Claim 133 words
The method of producing laser energy which comprises: reacting cyanogen with ozone exothermically in a molar ratio of approximately 1:1.5 in a high pressure reaction chamber producing a first gas mixture containing free oxygen atoms; expanding the first gas mixture from a condition of relatively high pressure and stagnation temperature in the reaction chamber to a condition of reduced pressure and translational temperature, freezing the free oxygen atoms to inhibit recombination of the free atoms; reacting a secondary reactant selected from the group consisting of carbon disulfide and carbon suboxide with the free oxygen atoms to form a second gas mixture and to produce an inverted population of vibrationally excited molecules of carbon monoxide; and passing the second gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 18
Independent Claim 132 words
The method of producing laser energy which comprises: reacting lithium and oxygen difluoride exothermically in a molar ratio of approximately 0.55:1 in a high pressure reaction chamber producing a first gas mixture containing free oxygen atoms; expanding the first gas mixture from a condition of relatively high pressure and stagnation temperature in the reaction chamber to a condition of reduced pressure and temperature, freezing the free oxygen atoms to inhibit recombination of the free atoms; reacting a secondary reactant selected from the group consisting of carbon disulfide and carbon suboxide with the free oxygen atoms to form a second gas mixture to provide an inverted population of vibrationally excited molecules of carbon monoxide; and passing the second gas mixture through means for providing stimulated emission of radiation from the active laser gas.
Claim 19
Independent Claim 167 words
The method of producing laser energy which comprises: reacting hydrogen and fluorine exothermically in a molar ratio of approximately 1.4:1 in a high pressure reaction chamber producing reaction products containing free hydrogen atoms; injecting helium diluent gas into the reaction chamber to lower the stagnation temperature of the reaction products and minimize the recombination of the free hydrogen atoms; expanding the gases from a condition of relatively high pressure and stagnation temperature in the reaction chaMber to a condition of reduced translational temperature and pressure, freezing the free hydrogen atoms to inhibit recombination of the free atoms; reacting ozone of the free hydrogen to form a first gas mixture and to produce an inverted population of vibrationally excited hydroxyl radical molecules; admixing additional amounts of helium diluent to reduce the translational temperature of the first gas mixture and forming a second gas mixture; expanding the second gas mixture; and passing the second gas mixture through means for providing stimulated emission of radiation from the active laser gas.

References Cited (Backward Citations)

US3560876A Cited
US3575669A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-24 1976-04-24 1976-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-24 1980-04-24 1980-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-24 1984-04-24 1984-10-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag