US6096103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternative fuel for use in a diesel engine-powered emergency generator for intermittent use in fixed installations
Assignee: Individual
•
Filing: 1999-06-03
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Granted: 2000-08-01
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Expires: 2019-06-03
Abstract
Abstract A special fuel is formulated for use with diesel engines which are used infrequently in emergency situations.
Inventors
- 👤 William A. Hubbard
- 👤 Reginald N. Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
The method of operating a diesel engine powered electrical generator for emergency purposes during occasional or infrequent power outages, wherein the diesel engine is not used for extensive time periods, wherein the diesel engine is supplied by a reservoir tank of conventional diesel fuel, and wherein the conventional diesel fuel tends to deteriorate over relatively long time periods when the emergency generator is not required, such that the diesel engine may operate improperly or less efficiently when the emergency generator is required, the improvement which comprises the step of filling the reservoir tank with mineral spirits instead of conventional diesel fuel for relatively short-term usage, thereby substantially eliminating the problem of fuel deterioration and possible engine malfunction over relatively long time periods of non-use.
Claim 2
Independent Claim
124 words
The method of operating a diesel engine powered electrical generator for emergency purposes during occasional or infrequent power outages, wherein the diesel engine is not used for extensive time periods, wherein the diesel engine is supplied by a reservoir tank of conventional diesel fuel, and wherein the conventional diesel fuel tends to deteriorate over relatively long time periods when the emergency generator is not required, such that the diesel engine may operate improperly or less efficiently when the emergency generator is required, the improvement which comprises the step of filling the reservoir tank with mineral spirits instead of conventional diesel fuel for relatively short-term usage, thereby substantially eliminating the problem of fuel deterioration and possible engine malfunction over relatively long time periods of non-use.
Claim 3
Dependent Claim
19 words
The method of claim 1, wherein the mineral spirits has an aromatic content of up to about twenty-five percent.
Claim 4
Dependent Claim
17 words
The method of claim 2, further including the step of providing a biocide in the mineral spirits.
Claim 5
Dependent Claim
17 words
The method of claim 3, wherein the biocide is in the range of 500 to 1,000 ppm.
Claim 6
Dependent Claim
18 words
The method of claim 1, wherein the mineral spirits has a flash point of at least 125° F.
Claim 7
Independent Claim
152 words
The method of operating a diesel engine powered electrical generator for emergency purposes during occasional or infrequent power outages, wherein the diesel engine is not used for extensive time periods, wherein the diesel engine is supplied by a reservoir tank of conventional diesel fuel, and wherein the conventional diesel fuel tends to deteriorate over relatively long time periods when the emergency generator is not required, such that the diesel engine may operate improperly or less efficiently when the emergency generator is required, the improvement which comprises the step of filling the reservoir tank with a fuel for powering said diesel engine said fuel having, a) a flash point over 125° F., b) a 90% distillation in the range of about 350° F. to 450° F., c) a cetane rating in the range of about 40 to 60, and d) a low sulfur content in the range of about 1 to 5 ppm.
Claim 8
Independent Claim
152 words
The method of operating a diesel engine powered electrical generator for emergency purposes during occasional or infrequent power outages, wherein the diesel engine is not used for extensive time periods, wherein the diesel engine is supplied by a reservoir tank of conventional diesel fuel, and wherein the conventional diesel fuel tends to deteriorate over relatively long time periods when the emergency generator is not required, such that the diesel engine may operate improperly or less efficiently when the emergency generator is required, the improvement which comprises the step of filling the reservoir tank with a fuel for powering said diesel engine said fuel having, a) a flash point over 125° F., b) a 90% distillation in the range of about 350° F. to 450° F., c) a cetane rating in the range of about 40 to 60, and d) a low sulfur content in the range of about 1 to 5 ppm.
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) | 2003-08-01 | 2004-01-31 | 2004-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-01 | 2008-01-31 | 2008-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-01 | 2012-01-31 | 2012-08-01 | $7700.00 | Window Closed / Lapsed |