Patent US4409780A successfully refreshed from Google Patents.
Patent US4049402A successfully refreshed from Google Patents.
US4049402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas mixing device
Assignee: United States Department of the Navy
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Filing: 1975-11-06
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Granted: 1977-09-20
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Expires: 1995-11-06
Abstract
Abstract Method and apparatus for mixing hydrogen and oxygen as a noncombustionableixture of gases which avoids the hazard of a combustible mixing interface are disclosed as comprising a pair of cylinders which timely contains a water solvent within which said hydrogen and oxygen are respectively dissolved under pressurized and refrigerated conditions, in accordance with a predetermined program of operations. Then, the gas-saturated water of one of said cylinders is mixed with that of the other, thereby causing the gases therein to be mixed wthin the mixed water. The resultant gaseous mixture is subsequently separated from said water mixture, dried, and stores as a mixture of hydrogen and oxygen gases.
Inventors
- 👤 Charles B. Fortson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:59
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/10; B01F23/19; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
347 words
Apparatus for preparing a breathable mixture of hydrogen and oxygen gases in a predetermined ratio for use in deepsea diving, said apparatus comprising: a first cylinder defining a first chamber holding a predetermined first volume of water; a second cylinder defining a second chamber holding a second predetermined volume of water; a first piston operable in said first cylinder for varying the volume of said first chamber between a chamber volume greater than said first volume of water and a lesser chamber volume equal to said first volume of water; a second piston operable in said second cylinder for varying the volume of said second chamber between a chamber volume greater than said second volume of water and a lesser chamber volume equal to said second volume of water; means for introducing a predetermined quantity of gaseous hydrogen into said first chamber while operating said first piston to vary the volume thereof from said lesser chamber volume to said greater chamber volume; means for introducing a predetermined quantity of gaseous oxygen into said second chamber, in said predetermined ratio to said hydrogen in said first chamber, while operating said second piston to vary the volume thereof from said lesser chamber volume to said greater chamber volume; piston drive means, coupled to said first and second pistons, for moving said pistons in said cylinders so as to reduce the volumes of said first and second chambers, respectively, to said lesser chamber volumes, whereby said hydrogen and said oxygen form first and second solutions with said first and second volumes of water, respectively; refrigeration means, associated with said first and second cylinders, for cooling said water as said solutions are formed; mixing means, connected to said first and second cylinders, for mixing said first and second solutions to form a third solution containing both said hydrogen and said oxygen in said predetermined ratio; heating means, associated with one of said cylinders, for heating said third solution; and precipitator means, connected to said mixing means and said one of said cylinders, for separating said breathable mixture from said third solution.
Claim 2
Dependent Claim
347 words
Apparatus for preparing a breathable mixture of hydrogen and oxygen gases in a predetermined ratio for use in deepsea diving, said apparatus comprising: a first cylinder defining a first chamber holding a predetermined first volume of water; a second cylinder defining a second chamber holding a second predetermined volume of water; a first piston operable in said first cylinder for varying the volume of said first chamber between a chamber volume greater than said first volume of water and a lesser chamber volume equal to said first volume of water; a second piston operable in said second cylinder for varying the volume of said second chamber between a chamber volume greater than said second volume of water and a lesser chamber volume equal to said second volume of water; means for introducing a predetermined quantity of gaseous hydrogen into said first chamber while operating said first piston to vary the volume thereof from said lesser chamber volume to said greater chamber volume; means for introducing a predetermined quantity of gaseous oxygen into said second chamber, in said predetermined ratio to said hydrogen in said first chamber, while operating said second piston to vary the volume thereof from said lesser chamber volume to said greater chamber volume; piston drive means, coupled to said first and second pistons, for moving said pistons in said cylinders so as to reduce the volumes of said first and second chambers, respectively, to said lesser chamber volumes, whereby said hydrogen and said oxygen form first and second solutions with said first and second volumes of water, respectively; refrigeration means, associated with said first and second cylinders, for cooling said water as said solutions are formed; mixing means, connected to said first and second cylinders, for mixing said first and second solutions to form a third solution containing both said hydrogen and said oxygen in said predetermined ratio; heating means, associated with one of said cylinders, for heating said third solution; and precipitator means, connected to said mixing means and said one of said cylinders, for separating said breathable mixture from said third solution.
Claim 3
Dependent Claim
29 words
Apparatus as defined in claim 1, and further comprising: drier means and storage means, connected to said precipitator means, for drying and storing said gas mixture for later use.
Claim 4
Dependent Claim
49 words
Apparatus as defined in claim 2, and wherein said means for mixing comprises conduit and valve means adapted to interconnect said first and second chambers, whereby said first and second solutions can be mixed by operation of said pistons to move said first and second solutions between said chambers.
Claim 5
Dependent Claim
37 words
Apparatus as defined in claim 1, and further comprising: control means, for automatically controlling the introduction of said hydrogen and oxygen, the operation of said pistons, said mixing means, and said heating means, in predetermined timed relation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |