US4061473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process to embody waste automotive lubricating oils into a fuel additive to reduce corrosion and deposits and augment energy availability
Assignee: Individual
•
Filing: 1975-08-21
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Granted: 1977-12-06
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Expires: 1995-08-21
Abstract
Abstract A process which makes use of waste automotive lubricating oils as an energy source, and function as an emulsifier, into which oils are embodied, and agitated, aqueous solutions of water-soluble salts of those metals which inhibit corrosion and minimize deposits when fuel oils are burned. The resultant fuel oil additive, as a water-in-oil emulsion, is introduced into fuels which contain corrosives, prior to combustion in boilers, gas turbines, or diesel engines. Upon combustion, the inhibiting metals from the additive combine with the corrosives in the fuel to form innocuous compounds.
Inventors
- 👤 Robert S. Norris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:25
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/32; C10L1/328; C10L10/00; C10L10/04; C10L10/08; C10L1/12; C10L1/14; C10L1/16; C10L1/1616; C10L1/24; C10L1/2431; C10L1/2437; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
49 words
A process of preparing a fuel oil additive comprising emulsifying a waste lubricating oil containing petroleum sulfonate detergent with an aqueous solution of a water soluble salt of an element selected from the group consisting of aluminum, barium, boron, calcium, chromium, copper, magnesium, manganese, samarium, silicon, tin and zinc.
Claim 2
Dependent Claim
49 words
A process of preparing a fuel oil additive comprising emulsifying a waste lubricating oil containing petroleum sulfonate detergent with an aqueous solution of a water soluble salt of an element selected from the group consisting of aluminum, barium, boron, calcium, chromium, copper, magnesium, manganese, samarium, silicon, tin and zinc.
Claim 3
Dependent Claim
33 words
The process of claim 1 wherein from equal parts of aqueous salt solution and waste lubricating oil to that of one part aqueous salt solution and three parts waste lubricating oil are emulsified.
Claim 4
Dependent Claim
16 words
The process of claim 2 wherein the aqueous salt solution is a solution of magnesium sulfate.
Claim 5
Dependent Claim
16 words
The process of claim 2 wherein the aqueous salt solution is a solution of magnesium silico-fluoride.
Claim 6
Dependent Claim
16 words
The process of claim 2 wherein the aqueous salt solution is a solution of magnesium chromate.
Claim 7
Dependent Claim
16 words
The process of claim 2 wherein the aqueous salt solution is a solution of manganese sulfate.
Claim 8
Dependent Claim
16 words
The process of claim 2 wherein the aqueous salt solution is a solution of samarium chloride.
Claim 9
Dependent Claim
16 words
The process of claim 2 wherein the aqueous salt solution is a solution of stannous chloride.
Claim 10
Dependent Claim
48 words
A fuel oil additive comprising an emulsion of an aqueous salt solution of a water soluble salt of an element selected from the group consisting of aluminum, barium, boron, calcium, chromium, copper, magnesium, manganese, samarium, silicon, tin and zinc in a waste lubricating oil containing petroleum sulfonate detergent.
Claim 11
Dependent Claim
48 words
A fuel oil additive comprising an emulsion of an aqueous salt solution of a water soluble salt of an element selected from the group consisting of aluminum, barium, boron, calcium, chromium, copper, magnesium, manganese, samarium, silicon, tin and zinc in a waste lubricating oil containing petroleum sulfonate detergent.
Claim 12
Dependent Claim
34 words
The fuel oil additive of claim 9 wherein from equal parts of aqueous salt solution and waste lubricating oil to that of one part aqueous solution and three parts waste lubricating oil are emulsified.
Claim 13
Dependent Claim
18 words
The fuel oil additive of claim 10 wherein the aqueous salt solution is a solution of magnesium sulfate.
Claim 14
Dependent Claim
18 words
The fuel oil additive of claim 9 wherein the aqueous salt solution is a solution of magnesium silico-fluoride.
Claim 15
Dependent Claim
18 words
The fuel oil additive of claim 10 wherein the aqueous salt solution is a solution of magnesium chromate.
Claim 16
Dependent Claim
18 words
The fuel oil additive of claim 9 wherein the aqueous salt solution is a solution of manganese sulfate.
Claim 17
Dependent Claim
18 words
The fuel oil additive of claim 9 wherein the aqueous salt solution is a solution of samarium chloride.
Claim 18
Dependent Claim
18 words
The fuel oil additive of claim 9 wherein the aqueous salt solution is a solution of stannous chloride.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |