Patent US3901644A successfully refreshed from Google Patents.
US3901644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burning fuel oil burning system
Assignee: Individual
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Filing: 1974-04-05
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Granted: 1975-08-26
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Expires: 1994-04-05
Abstract
Abstract Heated fuel-oil is injected into an open-ended mixing chamber simultaneously with a jet of water so that an intimate mixture of fuel-oil and water is formed. This mixture is ignited and sufficient air is supplied to support combustion. To clean and pre-heat the fuel, it is injected into a tank partly filled with hot water, through which the oil rises to form a separate layer in the top of the tank, from where it is withdrawn.
Inventors
- 👤 Gregorio Cardenes Armas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:06
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/16; F23D11/36; F23D11/44
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
An apparatus for burning fuel-oil, said apparatus comprising: a water tank; means for heating water in said tank; means for injecting fuel-oil into said tank so that said fueloil rises through the hot water to form a layer in the top of said tank; a combustion chamber including an openended mixing chamber for fuel-oil and water; a fuel-oil line communicating between said tank and the mixing chamber, said fuel-oil line including a heater for heating said fuel-oil and a pump for pumping said fuel-oil to said mixing chamber; means for injecting a jet of water into said mixing chamber to form an intimAte mixture of fuel-oil and water; and means for supplying to the open end of said mixing chamber sufficient air to support combustion of the mixture.
Claim 2
Independent Claim
128 words
An apparatus for burning fuel-oil, said apparatus comprising: a water tank; means for heating water in said tank; means for injecting fuel-oil into said tank so that said fueloil rises through the hot water to form a layer in the top of said tank; a combustion chamber including an openended mixing chamber for fuel-oil and water; a fuel-oil line communicating between said tank and the mixing chamber, said fuel-oil line including a heater for heating said fuel-oil and a pump for pumping said fuel-oil to said mixing chamber; means for injecting a jet of water into said mixing chamber to form an intimAte mixture of fuel-oil and water; and means for supplying to the open end of said mixing chamber sufficient air to support combustion of the mixture.
Claim 3
Dependent Claim
37 words
Apparatus as claimed in claim 1, wherein said water heating means comprises a combustion chamber in said tank; a burner extending into one end of said combustion chamber; and an exhaust flue extending from said combustion chamber.
Claim 4
Dependent Claim
23 words
Apparatus as claimed in claim 1, wherein the top of said tank contains an open-topped container into which said layer of fuel-oil overflows.
Claim 5
Dependent Claim
72 words
Apparatus as claimed in claim 1, wherein said fuel-oil injecting means comprises a tube communicating with the bottom of said tank and connected to the inlet of a pump the outlet of which is connected to the bottom of said tank, said inlet of said pump being connected to a fuel-oil supply tube, so that the water circulates in a closed circuit, and when the pump cannot suck water, it sucks fuel-oil.
Claim 6
Dependent Claim
26 words
Apparatus as claimed in claim 1, wherein said heater in said fuel-oil line comprises electrical resistance heating elements adapted to heat the fuel-oil to approximately 300*C.
Claim 7
Dependent Claim
42 words
Apparatus as claimed in claim 1, wherein said water injecting means comprises a line supplied by a pump and including a filter; and said air supplying means comprises a fan and a duct having an outlet located immediately below the mixing chamber.
Claim 8
Dependent Claim
29 words
Apparatus as claimed in claim 1, further comprising an oil-fired pilot burner whose flame passes over said mixing chamber, and an electrical ignition device for lighting said pilot burner.
Claim 9
Dependent Claim
33 words
Apparatus as claimed in claim 7, wherein said flame of said pilot burner passes through a chamber through which tubes for conduction of said fuel-oil and water to said mixing chamber also pass.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |