Patent US3336844A successfully refreshed from Google Patents.
US3336844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pistons for engines with a high thermal load
Assignee: Individual
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Filing: 1964-08-25
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Granted: 1967-08-22
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Expires: 1984-08-25
Abstract
No abstract record available.
Inventors
- 👤 Cornet Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:05
CPC Classifications
F; F16; F16J; F16J9/00; F02; F02F; F02F3/00; F02F3/16; F02F3/20; F02F3/22; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/0433; F05C2201/0448
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PISTON FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A CYLINDRICAL MOLDED HEAD OF A FIRST TYPE OF MATERIAL, SAID HEAD CONSISTING OF A BOTTOM AND A RING-CARRYING ANNULUS AND A SKIRT MADE OF A SECOND TYPE OF MATERIAL AND RIGIDLY ATTACHED TO SAID RING-CARRYING ANNULUS, SAID HEAD HAVING A PLURALITY OF BOSSES INTEGRALLY JOINED TO THE INTERNAL FACE OF ITS BOTTOM, AND BOSSES BEING POSITIONED SO AS TO BE CLEAR OF SAID SKIRT AND OF A SUBSTANTIAL PORTION OF SAID RING-CARRYING ANNULUS ADJACENT SAID SKIRT AND HAVING PIVOT BEARINGS FOR THE CONNECTION OF THE SMALL END OF A CONNECTION ROD, SAID HEAD FURTHER COMPRISING A PAIR OF RIGIDLY CONNECTING DIAMETRICALLY OPPOSED EXTENSIONS EXTENDING IN A DIRECTION PARALLEL TO THE PISTON AXIS AND AGAINST WHICH SAID SKIRT BEARS, SAID EXTENSIONS BEING CENTERED ON A RADIAL PLANE OF SAID PISTON PERPENDICULAR TO THE AXIS OF SAID PIVOT BEARINGS.
Claim 2
Dependent Claim
146 words
A PISTON FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A CYLINDRICAL MOLDED HEAD OF A FIRST TYPE OF MATERIAL, SAID HEAD CONSISTING OF A BOTTOM AND A RING-CARRYING ANNULUS AND A SKIRT MADE OF A SECOND TYPE OF MATERIAL AND RIGIDLY ATTACHED TO SAID RING-CARRYING ANNULUS, SAID HEAD HAVING A PLURALITY OF BOSSES INTEGRALLY JOINED TO THE INTERNAL FACE OF ITS BOTTOM, AND BOSSES BEING POSITIONED SO AS TO BE CLEAR OF SAID SKIRT AND OF A SUBSTANTIAL PORTION OF SAID RING-CARRYING ANNULUS ADJACENT SAID SKIRT AND HAVING PIVOT BEARINGS FOR THE CONNECTION OF THE SMALL END OF A CONNECTION ROD, SAID HEAD FURTHER COMPRISING A PAIR OF RIGIDLY CONNECTING DIAMETRICALLY OPPOSED EXTENSIONS EXTENDING IN A DIRECTION PARALLEL TO THE PISTON AXIS AND AGAINST WHICH SAID SKIRT BEARS, SAID EXTENSIONS BEING CENTERED ON A RADIAL PLANE OF SAID PISTON PERPENDICULAR TO THE AXIS OF SAID PIVOT BEARINGS.
References Cited (Backward Citations)
US2051547A
Cited
US2077688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |