Patent US4333840A successfully refreshed from Google Patents.
US4333840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid PTFE lubricant for weapons
Assignee: Individual
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Filing: 1981-02-12
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Granted: 1982-06-08
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Expires: 2001-02-12
Abstract
Abstract A lubricant especially adapted to meet the requirements of firearms, the lubricant being constituted by a dispersion of microfine PTFE particles in an oil carrier diluted with a major amount of synthetic lubricant having a low viscosity and a high viscosity index, whereby the resultant hybrid lubricant not only reduces wear and friction, but also affords a protective coating for the treated metal surfaces which resists the adhesion thereto of grime, powder, lead and all other contaminants that otherwise make it necessary to frequently clean the weapon to maintain it in proper working order.
Inventors
- 👤 Franklin G. Reick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:48
CPC Classifications
C; C10; C10M; C10M177/00; C10M169/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/14; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/044; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/04; C10M2213/06; C10M2213/062; C10M2219/00; 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; C10N2010/12; 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: 8
Claim 1
Independent Claim
81 words
A hybrid lubricant especially adapted for use in firearms and similar applications that require a low viscosity lubricant, said hybrid lubricant comprising: A. a minor amount of an additive constituted by a dispersion of polytetrafluoroethylene solid particles, a neutralizing agent stabilizing the dispersion to prevent agglomeration of the particles, and a fluid oil lubricant carrier of relatively high viscosity intermingled with the stabilized dispersion; and B. a major amount of a synthetic fluid lubricant having a low viscosity diluting the additive.
Claim 2
Dependent Claim
81 words
A hybrid lubricant especially adapted for use in firearms and similar applications that require a low viscosity lubricant, said hybrid lubricant comprising: A. a minor amount of an additive constituted by a dispersion of polytetrafluoroethylene solid particles, a neutralizing agent stabilizing the dispersion to prevent agglomeration of the particles, and a fluid oil lubricant carrier of relatively high viscosity intermingled with the stabilized dispersion; and B. a major amount of a synthetic fluid lubricant having a low viscosity diluting the additive.
Claim 3
Dependent Claim
17 words
A hybrid lubricant as set forth in claim 1, wherein said neutralizing agent is a fluorochemical surfactant.
Claim 4
Dependent Claim
20 words
A hybrid lubricant as set forth in claim 1, wherein said dispersion is of colloidal particles in the sub-micron range.
Claim 5
Dependent Claim
23 words
A hybrid lubricant as set forth in claim 1, wherein the ratio of additive to synthetic fluid lubricant is about 1 to 4.
Claim 6
Dependent Claim
24 words
A hybrid lubricant as set forth in claim 1, wherein said synthetic fluid lubricant is constituted by a polyalphaolefin having a high viscosity index.
Claim 7
Dependent Claim
21 words
A hybrid lubricant as set forth in claim 1, wherein said synthetic fluid lubricant is constituted by a diabasic acid ester.
Claim 8
Dependent Claim
22 words
A hybrid lubricant as set forth in claim 5, wherein said synthetic fluid further includes a small percentage of a rust inhibitor.
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) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |