Patent US3452228A successfully refreshed from Google Patents.
US4036769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sperm oil substitute from blend of alcohol-carboxylic acid esters with liquid fat
Assignee: Smith Werner G Inc
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Filing: 1971-04-05
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Granted: 1977-07-19
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Expires: 1991-04-05
Abstract
Abstract A liquid lubricant comprising a blend from about 50 per cent to about 90 per cent by weight of an ester of a monohydric alcohol having from about 10 to about 18 carbon atoms and a monocarboxylic acid having 12 to 24 carbon atoms, and from about 10 per cent to about 50 per cent by weight of a fat liquid at room temperatures, such as fish oil. One or more of the monohydric alcohol, monocarboxylic acid, and liquid fat have sufficient carbon-to-carbon unsaturation to impart to the blend an iodine number up to about 140. The lubricant has a balance of properties adapting it to be used as a substitute for sperm oil, for example, a pour point below 50° F. and a S.U.S. viscosity at 100° F. within the range of about 60 to about 120. The blend may be used as such or chemically combined with sulfur, chlorine or other halogens, phosphorous, and the like.
Inventors
- 👤 Robert L. Zipf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:23
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M159/00; C10M159/12; C10M159/123; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/12; C10N; C10N2040/00; C10N2040/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
A liquid lubricant comprising a blend consisting essentially of: a. from about 50 percent to about 90 percent by weight of synthetic esters of monohydric alcohols each having 10 to 18 carbon atoms and fatty acids each having 12 to 24 carbon atoms, at least one of said esters containing carbon-to-carbon unsaturation, and b. from about 10 percent to about 50 percent by weight of a fat liquid at room temperature and selected from the class consisting of animal oils, vegetable oils, fish oils and mixtures thereof, and c. free fatty acids each having 12 to 24 carbon atoms and being present in an amount such that the acid number of the blend is less than 15 but at least about 5, said blend having an iodine number from about 50 to about 140, a pour point below 50° F. and a S.U.S. viscosity at 100° F. within the range of about 60 to about 120.
Claim 2
Dependent Claim
156 words
A liquid lubricant comprising a blend consisting essentially of: a. from about 50 percent to about 90 percent by weight of synthetic esters of monohydric alcohols each having 10 to 18 carbon atoms and fatty acids each having 12 to 24 carbon atoms, at least one of said esters containing carbon-to-carbon unsaturation, and b. from about 10 percent to about 50 percent by weight of a fat liquid at room temperature and selected from the class consisting of animal oils, vegetable oils, fish oils and mixtures thereof, and c. free fatty acids each having 12 to 24 carbon atoms and being present in an amount such that the acid number of the blend is less than 15 but at least about 5, said blend having an iodine number from about 50 to about 140, a pour point below 50° F. and a S.U.S. viscosity at 100° F. within the range of about 60 to about 120.
Claim 3
Dependent Claim
28 words
The lubricant of claim 1 in which said liquid fat is a fish oil selected from the group consisting of cod, tuna, herring, alewife, sardine, pilchard, and menhaden.
Claim 4
Dependent Claim
14 words
The lubricant of claim 1 in which said liquid fat is menhaden fish oil.
Claim 5
Dependent Claim
6 words
The sulfurized lubricant of claim 1.
Claim 6
Dependent Claim
18 words
The sulfurized lubricant of claim 1 containing from about 1 percent to about 18 percent sulfur by weight.
Claim 7
Dependent Claim
6 words
The sulfo-chlorinated lubricant of claim 1.
Claim 8
Dependent Claim
6 words
The chlorinated blend of claim 1.
Claim 9
Dependent Claim
6 words
The phosphated blend of claim 1.
Claim 10
Dependent Claim
23 words
The sulfurized lubricant of claim 1 in which sulfur chemically bridges at least some of said ester with some of said liquid fat.
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) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |