US3089735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocable combustion engine
Assignee: Otto Fuchs KG
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Filing: 1961-05-31
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Granted: 1963-05-14
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Mann Karl Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:46
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/08; F; F16; F16C; F16C17/00; F16C17/12; F16C17/22; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/08; F16C33/12; F16C33/14; F16C9/00; F16C9/02; F05; F05C; F05C2251/00; F05C2251/04; F05C2251/042; F16C2220/00; F16C2220/40; F16C2220/48; F16C2220/80; F16C2220/82; F16C2223/00; F16C2223/30; F16C2223/44; F16C2226/00; F16C2226/10; F16C2226/14; F16C2226/50; F16C2226/60; F16C2226/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
IN A RECIPROCABLE COMBUSTION ENGINE, IN COMBINATION, A MOTOR BLOCK OF CAST LIGHT METAL HAVING IN ONE FACE THEREOF AN ELONGATED RECESS HAVING IN A TRANSVERSE DIRECTION PARALLEL TO SAID FACE A PREDETERMINED MAXIMUM TRANSVERSAL EXTENSION AND INCLUDING AN ELONGATED INSERT CONSISTING ESSENTIALLY OF AN ALLOY SELECTED FROM THE GROUP CONSISTING OF WROUGHT ALUMINUM ALLOYS, WROUGHT MAGNESIUM ALLOYS AND COPPER ALLOYS LOCATED IN SAID RECESS FITTING INTO THE SAME AND FORMED WITH A SUBSTANTIALLY ELONGATED PART CYLINDRICAL RECESS IN ITS OUTER FACE, SAID RECESS HAVING IN THE PLANE OF SAID OUTER FACE A MAXIMUM TRANSVERSE EXTENSION SMALLER THAN SAID PREDETERMINED MAXIMUM TRANSVERSAL EXTENSION AND THE COMPRESSION YIELD STRENGTH OF SAID ALLOY BEING GREATER THAN THAT OF THE CAST LIGHT METAL OF SAID MOTOR BLOCK; AND A BEARING SHELL ADAPTED TO SUPPORT A CRANKSHAFT FITTING INTO SAID CYLINDRICAL RECESS IN SAID INSERT, WHEREBY PRESSURE EXERTED BY A CRANKSHAFT ON SAID BEARING SHELL WILL BE DISTRIBUTED UPON A SURFACE AREA OF SAID CAST LIGHT METAL OF SAID CAST MOTOR BLOCK WHICH IS GREATER THAN THE AREA OF CONTACT BETWEEN SAID INERT AND SAID BEARING SHELL.
Claim 2
Dependent Claim
183 words
IN A RECIPROCABLE COMBUSTION ENGINE, IN COMBINATION, A MOTOR BLOCK OF CAST LIGHT METAL HAVING IN ONE FACE THEREOF AN ELONGATED RECESS HAVING IN A TRANSVERSE DIRECTION PARALLEL TO SAID FACE A PREDETERMINED MAXIMUM TRANSVERSAL EXTENSION AND INCLUDING AN ELONGATED INSERT CONSISTING ESSENTIALLY OF AN ALLOY SELECTED FROM THE GROUP CONSISTING OF WROUGHT ALUMINUM ALLOYS, WROUGHT MAGNESIUM ALLOYS AND COPPER ALLOYS LOCATED IN SAID RECESS FITTING INTO THE SAME AND FORMED WITH A SUBSTANTIALLY ELONGATED PART CYLINDRICAL RECESS IN ITS OUTER FACE, SAID RECESS HAVING IN THE PLANE OF SAID OUTER FACE A MAXIMUM TRANSVERSE EXTENSION SMALLER THAN SAID PREDETERMINED MAXIMUM TRANSVERSAL EXTENSION AND THE COMPRESSION YIELD STRENGTH OF SAID ALLOY BEING GREATER THAN THAT OF THE CAST LIGHT METAL OF SAID MOTOR BLOCK; AND A BEARING SHELL ADAPTED TO SUPPORT A CRANKSHAFT FITTING INTO SAID CYLINDRICAL RECESS IN SAID INSERT, WHEREBY PRESSURE EXERTED BY A CRANKSHAFT ON SAID BEARING SHELL WILL BE DISTRIBUTED UPON A SURFACE AREA OF SAID CAST LIGHT METAL OF SAID CAST MOTOR BLOCK WHICH IS GREATER THAN THE AREA OF CONTACT BETWEEN SAID INERT AND SAID BEARING SHELL.
References Cited (Backward Citations)
US2324676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |