US3136306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston for a high performance internal combustion engine
Assignee: Stevens Institute of Technology
•
Filing: 1961-04-20
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Granted: 1964-06-09
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Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 Wunibald I E Kamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:17
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/0015; F02F3/0023; F02F3/16; F02F3/20; F02F3/22; F01; F01M; F01M1/00; F01M1/08; F01M2001/086; F02F2200/00; F02F2200/04; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2251/00; F05C2251/04; F05C2251/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A HEAT BUFFER CROWN FOR A PISTON FOR HIGH TEMPERATURE INTERNAL COMBUSTION ENGINES, WHICH COMPRISES A BASE MEMBER, SAID BASE MEMBER BEING ADAPTED TO PHYSICALLY CONTACT THE PISTON OVER ONLY A MINOR PORTION OF ITS SURFACE TO MINIMIZE HEAT TRANSFER BY CONDUCTION, MEANS FOR INTERCONNECTING SAID BASE MEMBER AND THE PISTON, A HEAT REFLECTING ELEMENT SUPPORTED BY SAID BASE MEMBER, A HEAT INSULATING ELEMENT SUPPORTED BY SAID HEAT REFLECTING ELEMENT, AND A HOLLOW CYLINDRICAL COVER ENCLOSING SAID ELEMENTS AND RELEASABLY CONNECTED TO SAID BASE MEMBER.
Claim 2
Dependent Claim
85 words
A HEAT BUFFER CROWN FOR A PISTON FOR HIGH TEMPERATURE INTERNAL COMBUSTION ENGINES, WHICH COMPRISES A BASE MEMBER, SAID BASE MEMBER BEING ADAPTED TO PHYSICALLY CONTACT THE PISTON OVER ONLY A MINOR PORTION OF ITS SURFACE TO MINIMIZE HEAT TRANSFER BY CONDUCTION, MEANS FOR INTERCONNECTING SAID BASE MEMBER AND THE PISTON, A HEAT REFLECTING ELEMENT SUPPORTED BY SAID BASE MEMBER, A HEAT INSULATING ELEMENT SUPPORTED BY SAID HEAT REFLECTING ELEMENT, AND A HOLLOW CYLINDRICAL COVER ENCLOSING SAID ELEMENTS AND RELEASABLY CONNECTED TO SAID BASE MEMBER.
References Cited (Backward Citations)
US1225401A
Cited
US1547687A
Cited
US2214891A
Cited
FR949304A
Cited
US2360642A
Cited
US2446348A
Cited
US2569103A
Cited
US2720871A
Cited
US2742883A
Cited
US2782083A
Cited
US2807247A
Cited
US2835542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |