US5993496A
Expired / Lapsed
US
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Emulsified fuel
Assignee: Siemens Communications Inc
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Filing: 1998-05-28
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Granted: 1999-11-30
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Expires: 2018-05-28
Abstract
Abstract An emulsified combustible fuel is prepared by mixing the fuel with 10 to 50 wt. % of a water mixture containing 0.01 to 1.0 parts by weight of an anionic surfactant, 0.01 to 0.5 parts by weight of polyethylene oxide and 0.001 to 0.2 parts by weight of mathothyl per 100 parts by weight of water. The emulsified fuel can reduce the amount of discharged pollutants by optimizing combustion, thereby saving energy due to high efficiency. Further, it can be used in small, medium or large boiler systems without any control means to constantly maintain the optimal ratio of combustible fuel to water.
Inventors
- 👤 Ju Heung Sung
- 👤 Kong Seok Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:46
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/328
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
An emulsified fuel prepared by mixing the fuel with 10 to 50 wt. % of a water mixture of 0.01 to 1.0 parts by weight of an anionic surfactant, 0.01 to 0.5 parts by weight of polyethylene oxide and 0.001 to 0.2 parts by weight of mathothyl per 100 parts by weight of water.
Claim 2
Dependent Claim
54 words
An emulsified fuel prepared by mixing the fuel with 10 to 50 wt. % of a water mixture of 0.01 to 1.0 parts by weight of an anionic surfactant, 0.01 to 0.5 parts by weight of polyethylene oxide and 0.001 to 0.2 parts by weight of mathothyl per 100 parts by weight of water.
Claim 3
Dependent Claim
100 words
The emulsified fuel of claim 1, wherein the anionic surfactant is selected from the group consisting of an alkyl naphthalene sulfonate, a di-alkyl sulfosuccinate, an alkylbenzene sulfonate, an alkylsulfoacetate, an α-olefin sulfonate, a sodium N-acylmethyl taurate, an alkylether phosphate, an alkyl phosphate, an acyl peptide, an alkylether carboxylate, an N-acyl-aminoaxid, a fatty alcohol sulfate, an alkylether sulfate, a polyoxyethylene alkylphenyl ether sulfate and mixtures thereof and the polyethylene oxide has the general formula OH(CH 2 CH 2 O) n CH 2 CH 2 OH, wherein n is an integer having a value of greater than 300 and up to 800.
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) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-29 | 2011-05-31 | 2011-11-30 | $7700.00 | Window Closed / Lapsed |