Patent US3166992A successfully refreshed from Google Patents.
US3166992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine block
Assignee: Motors Liquidation Co
•
Filing: 1962-11-02
•
Granted: 1965-01-26
•
Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Philip L Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:33
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0085; F02F7/0002; F02F7/0012; F02F7/0043; F02F7/0048; F02F7/0058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A V-TYPE ENGINE, A BLOCK HAVING PARALLEL ROWS OF INCLINED CYLINDERS OPENING DOWNWARDLY INTO A COMMON CRANKCASE, ALIGNED BEARING PORTIONS FORMED IN THE BLOCK, A CRANKSHAFT JOURNALED IN THE BEARING PORTIONS AND HAVING CRANK ARMS LYING IN THE PATHS OF THE CYLINDERS, AND CYLINDER HEADS CONNECTABLE TO THE TOP OF THE BLOCK CLOSING THE CYLINDERS, THE IMPROVEMENT COMPRISING; A PLURALITY OF HIGH TENSILE STRENGTH U-BOLTS HAVING CLOSED ENDS LOOPING BEHIND EACH BEARING PORTION AND THEIR FREE ENDS INCLINING UPWARDLY IN PLANES PARALLEL WITH THE ROWS OF CYLINDERS AND TERMINATING BEYOND THE TOP OF THE BLOCK, SAID U-BOLTS ADAPTED TO ADJUSTABLY SECURE THE CYLINDER HEADS TO THE BLOCK WHEREBY THE U-BOLTS ARE PLACED IN TENSION AND ABSORB OPPOSITELY DIRECTED FIRING STRESSES ACTING ON SAID CYLINDER HEADS AND BEARING PORTIONS THUS RELIEVING THE CYLINER BLOCK OF SUCH STRESS.
Claim 2
Dependent Claim
137 words
IN A V-TYPE ENGINE, A BLOCK HAVING PARALLEL ROWS OF INCLINED CYLINDERS OPENING DOWNWARDLY INTO A COMMON CRANKCASE, ALIGNED BEARING PORTIONS FORMED IN THE BLOCK, A CRANKSHAFT JOURNALED IN THE BEARING PORTIONS AND HAVING CRANK ARMS LYING IN THE PATHS OF THE CYLINDERS, AND CYLINDER HEADS CONNECTABLE TO THE TOP OF THE BLOCK CLOSING THE CYLINDERS, THE IMPROVEMENT COMPRISING; A PLURALITY OF HIGH TENSILE STRENGTH U-BOLTS HAVING CLOSED ENDS LOOPING BEHIND EACH BEARING PORTION AND THEIR FREE ENDS INCLINING UPWARDLY IN PLANES PARALLEL WITH THE ROWS OF CYLINDERS AND TERMINATING BEYOND THE TOP OF THE BLOCK, SAID U-BOLTS ADAPTED TO ADJUSTABLY SECURE THE CYLINDER HEADS TO THE BLOCK WHEREBY THE U-BOLTS ARE PLACED IN TENSION AND ABSORB OPPOSITELY DIRECTED FIRING STRESSES ACTING ON SAID CYLINDER HEADS AND BEARING PORTIONS THUS RELIEVING THE CYLINER BLOCK OF SUCH STRESS.
References Cited (Backward Citations)
USRE23513E
Cited
US1276389A
Cited
US2025297A
Cited
US2093869A
Cited
US2179030A
Cited
FR822784A
Cited
US2208750A
Cited
US2412195A
Cited
US2974654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |