Patent US2922574A successfully refreshed from Google Patents.
Patent US3297008A successfully refreshed from Google Patents.
US3297008A
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Lubrication system for internal-combustion engines
Assignee: Audi AG
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Filing: 1964-09-21
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Granted: 1967-01-10
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Alt Ernst
- 👤 Buchner Bernhard
- 👤 Reges Gunter
- 👤 Horak Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:18
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/12; F02M31/125; F01; F01M; F01M1/00; F01M1/12; F01M3/00; F01M3/02; F01M5/00; F01M5/001; F01M5/02; F02M1/00; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4314; F02M2700/4316; F02M2700/434; F02M2700/4342; F02M2700/435; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
IN AN INTERNAL-COMBUSTION ENGINE WHEREIN A LUBRICANT IS ADMIXED WITH FUEL TO LUBRICATE MOVING PARTS OF THE ENGINE UPON OPERATION THEREOF, THE IMPROVEMENT WHICH COMPRISES: MIXING MEANS FOR ADMIXING FLOWING LUBRICANT WITH A LIQUID FUEL, SAID MIXING MEANS INCLUDING: A BODY FORMED WITH A PASSAGE FOR LUBRICANT/FUEL MIXTURE; FUEL-SUPPLY MEANS ALONG SAID PASSAGE FOR INTRODUCING SAID LIQUID FUEL THERETO; A LUBRICANT-SUPPLY DUCT PROVIDED IN SAID BODY AND COMMUNICATING WITH SAID PASSAGE FOR INTRODUCING SAID FLOWABLE LUBRICANT THERETO; AND HEATING MEANS ALONG SAID DUCT FOR HEATING SAID LUBRICANT PRIOR TO THE INTRODUCTION THEREOF INTO SAID PASSAGE.
Claim 2
Dependent Claim
95 words
IN AN INTERNAL-COMBUSTION ENGINE WHEREIN A LUBRICANT IS ADMIXED WITH FUEL TO LUBRICATE MOVING PARTS OF THE ENGINE UPON OPERATION THEREOF, THE IMPROVEMENT WHICH COMPRISES: MIXING MEANS FOR ADMIXING FLOWING LUBRICANT WITH A LIQUID FUEL, SAID MIXING MEANS INCLUDING: A BODY FORMED WITH A PASSAGE FOR LUBRICANT/FUEL MIXTURE; FUEL-SUPPLY MEANS ALONG SAID PASSAGE FOR INTRODUCING SAID LIQUID FUEL THERETO; A LUBRICANT-SUPPLY DUCT PROVIDED IN SAID BODY AND COMMUNICATING WITH SAID PASSAGE FOR INTRODUCING SAID FLOWABLE LUBRICANT THERETO; AND HEATING MEANS ALONG SAID DUCT FOR HEATING SAID LUBRICANT PRIOR TO THE INTRODUCTION THEREOF INTO SAID PASSAGE.
Claim 3
Dependent Claim
64 words
IN AN INTERNAL-COMBUSTION ENGINE WHEREIN A LUBRICANT IS ADMIXED WITH FUEL TO LUBRICATE MOVING PARTS OF THE ENGINE UPON OPERATION THEREOF, THE IMPROVEMENT WHICH COMPRISES MIXING MEANS FOR ADMIXING A FLOWABLE LUBRICANT WITH A LIQUID FUEL, SAID MIXING MEANS INCLUDING: A BODY FORMED WITH A PASSAGE FOR LUBRICANT/FUEL MIXTURE; FUEL-SUPPLY MEANS ALONG SAID PASSAGE FOR INTRODUCING SAID LIQUID FUEL THERETO; MEANS PROVIDING A LUBRICANT-SUPPLY
Claim 4
Dependent Claim
64 words
IN AN INTERNAL-COMBUSTION ENGINE WHEREIN A LUBRICANT IS ADMIXED WITH FUEL TO LUBRICATE MOVING PARTS OF THE ENGINE UPON OPERATION THEREOF, THE IMPROVEMENT WHICH COMPRISES MIXING MEANS FOR ADMIXING A FLOWABLE LUBRICANT WITH A LIQUID FUEL, SAID MIXING MEANS INCLUDING: A BODY FORMED WITH A PASSAGE FOR LUBRICANT/FUEL MIXTURE; FUEL-SUPPLY MEANS ALONG SAID PASSAGE FOR INTRODUCING SAID LIQUID FUEL THERETO; MEANS PROVIDING A LUBRICANT-SUPPLY
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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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |