US3413709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing crankshaft bearing bushings from internal combustion engines
Assignee: MAN AG
•
Filing: 1965-08-23
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Granted: 1968-12-03
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Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 Scobel Hugo
- 👤 Steidle Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:14
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0046; F16; F16C; F16C9/00; F16C9/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49698; Y10T29/53; Y10T29/53687; Y10T29/53796; Y10T29/5383; Y10T403/00; Y10T403/16; Y10T403/1633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A METHOD FOR THE READY REMOVAL OF LOWER SEMI-CYLINDRICAL CRANKSHAFT BEARING BUSHING DISPOSED BETWEEN THE BEARING PINS OF AN ENGINE CRANKSHAFT AND A SUPPORTING BEARING BLOCK THEREFORE WITHOUT REMOVAL OR DISPLACEMENT OF SAID CRANKSHAFT, WHICH COMPRISES THE STEPS OF INJECTING HYDRAULIC FLUID UNDER PRESSURE BETWEEN THE RADIALLY OUTER CIRCUMFERENTIAL SURFACE OF SAID BEARING BUSHING AND SAID BEARING BLOCK FOR URGING THE RADIALLY INNER CIRCUMFERENTIAL SURFACE ON SAID BEARING BUSHING INTO HIGH FRICTION ENGAGEMENT WITH SAID CRANKSHAFT PIN AND FOR RELIEVING FRICTIONAL ENGAGEMENT BETWEEN SAID RADIALLY OUTER CIRCUMFERENTIAL SURFACE AND SAID BEARING BLOCK, ROTATING SAID CRANKSHAFT BEARING PIN FOR INDUCING ROTATION OF SAID BUSHING OUT OF ENGAGEMENT BETWEEN SAID CRANKSHAFT BEARING PIN AND SAID BEARING BLOCK, AND REMOVING SAID BUSHING AFTER SAID ROTATION THEREOF WITHOU DISPLACING OR REMOVING SAID CRANKSHAFT AND WHILE SAID CRANKSHAFT REMAINS SUPPORTED BY OTHER BEARING BUSHINGS AND BEARING BLOCKS ENGAGING OTHER BEARING PINS THEREOF.
Claim 2
Independent Claim
147 words
A METHOD FOR THE READY REMOVAL OF LOWER SEMI-CYLINDRICAL CRANKSHAFT BEARING BUSHING DISPOSED BETWEEN THE BEARING PINS OF AN ENGINE CRANKSHAFT AND A SUPPORTING BEARING BLOCK THEREFORE WITHOUT REMOVAL OR DISPLACEMENT OF SAID CRANKSHAFT, WHICH COMPRISES THE STEPS OF INJECTING HYDRAULIC FLUID UNDER PRESSURE BETWEEN THE RADIALLY OUTER CIRCUMFERENTIAL SURFACE OF SAID BEARING BUSHING AND SAID BEARING BLOCK FOR URGING THE RADIALLY INNER CIRCUMFERENTIAL SURFACE ON SAID BEARING BUSHING INTO HIGH FRICTION ENGAGEMENT WITH SAID CRANKSHAFT PIN AND FOR RELIEVING FRICTIONAL ENGAGEMENT BETWEEN SAID RADIALLY OUTER CIRCUMFERENTIAL SURFACE AND SAID BEARING BLOCK, ROTATING SAID CRANKSHAFT BEARING PIN FOR INDUCING ROTATION OF SAID BUSHING OUT OF ENGAGEMENT BETWEEN SAID CRANKSHAFT BEARING PIN AND SAID BEARING BLOCK, AND REMOVING SAID BUSHING AFTER SAID ROTATION THEREOF WITHOU DISPLACING OR REMOVING SAID CRANKSHAFT AND WHILE SAID CRANKSHAFT REMAINS SUPPORTED BY OTHER BEARING BUSHINGS AND BEARING BLOCKS ENGAGING OTHER BEARING PINS THEREOF.
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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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |