Patent US3925033A successfully refreshed from Google Patents.
US3925033A
Expired / Lapsed
US
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Combustible gas system and method
Assignee: N R G EQUIPMENT CORP
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Filing: 1974-05-23
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Granted: 1975-12-09
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Expires: 1994-05-23
Abstract
Abstract A combustible gas such as propane or natural gas is bubbled through a liquid having a higher BTU content, to provide an enriched mixture of gases which burns with a hotter flame. The enriching liquid is contained in a separate tank into which the gas to be enriched is fed by means of a dip tube which has an opening into the top of the tank above the liquid level as well as opening near the bottom of the tank. The enriched gas is withdrawn from the top of the tank.
Inventors
- 👤 Frederick W Mayo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:18
CPC Classifications
C; C10; C10L; C10L3/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
The method of increasing the heating capacity of a combustible gas which comprises bubbling a portion of the gas through a combustible liquid having a greater caloric value than the gas and delivering another portion of the gas to an area above the liquid, and combining the gas portion above the liquid with the gas portion which has been bubbled through the liquid into said area.
Claim 2
Independent Claim
66 words
The method of increasing the heating capacity of a combustible gas which comprises bubbling a portion of the gas through a combustible liquid having a greater caloric value than the gas and delivering another portion of the gas to an area above the liquid, and combining the gas portion above the liquid with the gas portion which has been bubbled through the liquid into said area.
Claim 3
Dependent Claim
58 words
The method of claim 1 wherein the liquid is contained in a pressure vessel and said one portion is delivered through a restricted orifice into said vessel above the liquid and said other portion through a dip tube to the bottom of the vessel from which it bubbles upwardly through said liquid to mix with said one portion.
Claim 4
Independent Claim
93 words
The method of increasing the heating capacity of a combustible gas which comprises conducting the gas through an adjustable pressure regulator and then into the upper and lower portions of a pressure vessel containing an enriching liquid, allowing the gas to bubble upwardly through the enriching liquid and mix with the gas in the upper portion of the vessel above the liquid, and withdrawing the enriched gas mixture from the upper portion of the vessel above the liquid, whereby the BTU content of the enriched gas is variable by adjusting the pressure regulator.
Claim 5
Independent Claim
93 words
The method of increasing the heating capacity of a combustible gas which comprises conducting the gas through an adjustable pressure regulator and then into the upper and lower portions of a pressure vessel containing an enriching liquid, allowing the gas to bubble upwardly through the enriching liquid and mix with the gas in the upper portion of the vessel above the liquid, and withdrawing the enriched gas mixture from the upper portion of the vessel above the liquid, whereby the BTU content of the enriched gas is variable by adjusting the pressure regulator.
Claim 6
Dependent Claim
46 words
The method of claim 3 wherein a portion of the gas is delivered through a restricted orifice into an upper portion of the vessel above the liquid level therein, and is then combined with the enriched gas as it bubbled upwardly and emerges from the liquid.
Claim 7
Dependent Claim
133 words
A COMBUSTIBLE GAS SYSTEM INCLUDING A PRESSURE VESSEL HAVING AN OUTLET AT THE TOP AND HAVING A MAIN INLET AND A RESTRICTED GAS DELIVERY INLET CONNECTED TO SAID MAIN INLET AND OPENING INTO THE VESSEL NEAR THE TOP, A DIP TUBE ALSO INTERCONNECTED WITH SAID MAIN INLET AND LEADING TO A DISCHARGE OPENING BELOW THE LEVEL OF LIQUID IN THE VESSEL, AND A QUANTITY OF A LIQUID IN THE VESSEL OF RELATIVELY HIGHER HEAT VALUE THAN SAID GAS, THE LEVEL OF SAID LIQUID BEING BELOW SAID RESTRICTED GAS DELIVERY INLET, WHEREBY WHEN GAS IS DELIVERED SIMULTANEOUSLY TO SAID RESTRICTED GAS DELIVERY INLET AND DIP TUBE IT IS SUBDIVIDED AND ONE PORTION BUBBLED THROUGH THE LIQUID AND THEN COMBINED WITH GAS DELIVERED TO THE SPACE ABOVE THE LIQUID FOR DISCHARGE THEREWITH THROUGH THE OUTLET.
Claim 8
Dependent Claim
133 words
A COMBUSTIBLE GAS SYSTEM INCLUDING A PRESSURE VESSEL HAVING AN OUTLET AT THE TOP AND HAVING A MAIN INLET AND A RESTRICTED GAS DELIVERY INLET CONNECTED TO SAID MAIN INLET AND OPENING INTO THE VESSEL NEAR THE TOP, A DIP TUBE ALSO INTERCONNECTED WITH SAID MAIN INLET AND LEADING TO A DISCHARGE OPENING BELOW THE LEVEL OF LIQUID IN THE VESSEL, AND A QUANTITY OF A LIQUID IN THE VESSEL OF RELATIVELY HIGHER HEAT VALUE THAN SAID GAS, THE LEVEL OF SAID LIQUID BEING BELOW SAID RESTRICTED GAS DELIVERY INLET, WHEREBY WHEN GAS IS DELIVERED SIMULTANEOUSLY TO SAID RESTRICTED GAS DELIVERY INLET AND DIP TUBE IT IS SUBDIVIDED AND ONE PORTION BUBBLED THROUGH THE LIQUID AND THEN COMBINED WITH GAS DELIVERED TO THE SPACE ABOVE THE LIQUID FOR DISCHARGE THEREWITH THROUGH THE OUTLET.
Claim 9
Dependent Claim
39 words
A system as defined in claim 5 including an adjustable pressure regulator between said main inlet and the source of the gas at a position conveniently accessible to a point of delivery of the enriched gas from said outlet.
Claim 10
Dependent Claim
68 words
A system as defined in claim 5 including an inlet manifold connectible to a source of gas under pressure and having a plurality of outlets, and an outlet manifold having a plurality of inlets and having an outlet connectible to a delivery conduit, whereby a plurality of such pressure vessels may have their main inlets connected to the inlet manifold and their outlets connected to the outlet manifold.
Claim 11
Dependent Claim
38 words
A system as defined in claim 7 including an adjustable pressure regulator interposed between said source and said inlet manifold at a position conveniently accessible to a point of delivery of the enriched gas from the outlet manifold.
References Cited (Backward Citations)
US3733185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |