US4284518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized hybrid lubricant
Assignee: Individual
•
Filing: 1980-06-10
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Granted: 1981-08-18
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Expires: 2000-06-10
Abstract
Abstract A hybrid lubricant in which a colloidal dispersion of solid lubricant particles (PTFE) is uniformly dispersed in a fluid lubricant carrier that includes a small but effective amount of a nonionic fluorochemical surfactant acting to stabilize the dispersion. When the hybrid lubricant is diluted with a major amount of a conventional fluid lubricant, it functions in the environment of rubbing surfaces to afford the benefit of both solid and fluid lubrication, thereby minimizing friction under all operating conditions regardless of their severity.
Inventors
- 👤 Franklin G. Reick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:50
CPC Classifications
C; C10; C10M; C10M111/00; C10M169/00; C10M177/00; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/061; C10M2201/14; C10M2201/16; C10M2201/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2211/00; C10M2211/02; C10M2211/04; C10M2211/042; C10M2211/044; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/04; C10M2213/06; C10M2213/062; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/12; C10N2040/00; C10N2040/08; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
128 words
A hybrid lubricant additive dilutable in a conventional fluid oil lubricant to provide a working lubricant applicable to metallic working surfaces such as those found in internal combustion engines, said hybrid lubricant additive comprising: A: a colloidal dispersion of polytetrafluoroethylene particles having inherent defoaming characteristics; B: a neutralizing agent added to said dispersion in an amount stabilizing the dispersion to prevent agglomeration of the particles; C: a fluorochemical surfactant possessing foam-generating characteristics added to said dispersion in an amount insufficient to generate foam but sufficient to enhance the stability of the dispersion said surfactant is a nonionic surfactant belonging to the chemical class of fluorinated alkyl esters having an ability to foam low polarity hydrocarbon liquids; and D: a fluid oil lubricant carrier intermingled with the stabilized dispersion.
Claim 2
Dependent Claim
128 words
A hybrid lubricant additive dilutable in a conventional fluid oil lubricant to provide a working lubricant applicable to metallic working surfaces such as those found in internal combustion engines, said hybrid lubricant additive comprising: A: a colloidal dispersion of polytetrafluoroethylene particles having inherent defoaming characteristics; B: a neutralizing agent added to said dispersion in an amount stabilizing the dispersion to prevent agglomeration of the particles; C: a fluorochemical surfactant possessing foam-generating characteristics added to said dispersion in an amount insufficient to generate foam but sufficient to enhance the stability of the dispersion said surfactant is a nonionic surfactant belonging to the chemical class of fluorinated alkyl esters having an ability to foam low polarity hydrocarbon liquids; and D: a fluid oil lubricant carrier intermingled with the stabilized dispersion.
Claim 3
Dependent Claim
22 words
An additive as set forth in claim 1, wherein said carrier oil is a lubricating oil compatible with said conventional oil lubricant.
Claim 4
Dependent Claim
19 words
An additive as set forth in claim 1, wherein said neutralizing agent is a fluorochemical surfactant lacking foaming characteristics.
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) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |