US3887580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of crystallization of water in supercooled clouds and fogs and reagent useful in said method
Assignee: Individual
•
Filing: 1972-09-08
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Granted: 1975-06-03
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Expires: 1992-09-08
Abstract
Abstract Water in supercooled clouds or fogs is crystallized or condensed by subliming a crystallizing agent to form an aerosol thereof, and introducing said aerosol into said supercooled clouds or fogs, said crystallizing agent being a sublimable metal chelate of an acetoacetic ester or a B-diketone with a metal which is Cu, V, Mo or Co. The crystallizing agents used have the advantages of being inexpensive, of having low toxicity, and of containing metals required for microfertilizing the soil.
Inventors
- 👤 Veniamin Vasilievich Patrikeev
- 👤 Anna Davydovna Malkina
- 👤 Amiran Ilich Kartsivadze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:04
CPC Classifications
B; B01; B01D; B01D7/00; Y; Y10; Y10S; Y10S71/00; Y10S71/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A method for crystallizing or condensing water in supercooled clouds or fogs comprising the steps of subliming a crystallizing agent to form an aerosol of said crystallizing agent and introducing said aerosol into said supercooled clouds or fogs wherein the crystallizing agent is a sublimable metal chelate of acetoacetic ester or a Beta -diketone selected from the group consisting of acetylacetone, 3-chloroacetylacetone and acetoacetanilide with a metal selected from the group consisting of copper, vanadium molybdenum and cobalt, said chelate being taken alone or in combination.
Claim 2
Independent Claim
86 words
A method for crystallizing or condensing water in supercooled clouds or fogs comprising the steps of subliming a crystallizing agent to form an aerosol of said crystallizing agent and introducing said aerosol into said supercooled clouds or fogs wherein the crystallizing agent is a sublimable metal chelate of acetoacetic ester or a Beta -diketone selected from the group consisting of acetylacetone, 3-chloroacetylacetone and acetoacetanilide with a metal selected from the group consisting of copper, vanadium molybdenum and cobalt, said chelate being taken alone or in combination.
Claim 3
Independent Claim
85 words
A METHOD FOR CRYSTALLIZING OR CONDENSING WATER IN SUPERCOOLED CLOUDS OR FOGS COMPRISING THE STEPS OF SUBLIMING A CRYSTALLIZING AGENT TO FORM AN AEROSOL OF SAID CRYSTALLIZING AGENT AND INTRODUCING SAID AEROSOL INTO SAID SUPERCOOLED CLOUDS OR FOGS WHEREIN THE CRYSTALLIZING AGENT IS A SUBLIMABLE METAL CHELATE OF ACETOACETIC ESTER OR A B-DIKETONE SELECTED FROM THE GROUP CONSITING OF ACETYLACETONE, 3CHLOROACETYLACETONE AND ACETOACETANILIDE WITH A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, VANADIUM MOLYBDENUM AND COBALT, SAID CHELATE BEING TAKEN ALONE OR IN COMBINATION.
Claim 4
Independent Claim
85 words
A METHOD FOR CRYSTALLIZING OR CONDENSING WATER IN SUPERCOOLED CLOUDS OR FOGS COMPRISING THE STEPS OF SUBLIMING A CRYSTALLIZING AGENT TO FORM AN AEROSOL OF SAID CRYSTALLIZING AGENT AND INTRODUCING SAID AEROSOL INTO SAID SUPERCOOLED CLOUDS OR FOGS WHEREIN THE CRYSTALLIZING AGENT IS A SUBLIMABLE METAL CHELATE OF ACETOACETIC ESTER OR A B-DIKETONE SELECTED FROM THE GROUP CONSITING OF ACETYLACETONE, 3CHLOROACETYLACETONE AND ACETOACETANILIDE WITH A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, VANADIUM MOLYBDENUM AND COBALT, SAID CHELATE BEING TAKEN ALONE OR IN COMBINATION.
Claim 5
Dependent Claim
69 words
A method according to claim 1 wherein the metal chelate is selected from the group consisting of copper acetylacetonate, vanadyl acetylacetonate, molybdyl acetylacetonate, copper 3-chloroacetylacetonate, copper chelate of acetoacetic ester, copper acetoacetanilide, a mixture of copper acetylacetonate and the copper chelate of acetoacetic ester, a mixture of copper acetylacetonate and vanadyl acetylacetonate, a mixture of copper acetylacetonate and cobalt acetylacetonate, and a mixture of copper acetylacetonate and molybdyl acetylacetonate.
Claim 6
Dependent Claim
30 words
A method according to claim 2 wherein the crystallizing agent is a mixture of copper acetylacetonate and the copper chelate of acetoacetic ester in the following per cent by weight:
Claim 7
Dependent Claim
13 words
A method according to claim 2 wherein the crystallizing agent is copper acetylacetonate.
Claim 8
Dependent Claim
17 words
A method according to claim 2 wherein the crystallizing agent is the copper chelate of acetoacetic ester.
Claim 9
Dependent Claim
41 words
A REAGENT FOR USE IN CRYSTALLIZING OR CONDENSING WATER IN SUPERCOOLED CLOUDS AND FOGS, SAID REAGENT CONSISTING OF A MIXTURE HAVING THE FOLLOWING COMPOSITION IN PARTS BY WEIGHT: COPPER ACETYLACETONATE 25 - 50 COPPER CHELATE OF ACETOACETIC ESTER 75 - 50
Claim 10
Dependent Claim
41 words
A REAGENT FOR USE IN CRYSTALLIZING OR CONDENSING WATER IN SUPERCOOLED CLOUDS AND FOGS, SAID REAGENT CONSISTING OF A MIXTURE HAVING THE FOLLOWING COMPOSITION IN PARTS BY WEIGHT: COPPER ACETYLACETONATE 25 - 50 COPPER CHELATE OF ACETOACETIC ESTER 75 - 50
References Cited (Backward Citations)
US3056556A
Cited
US2962450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |