Patent US4357609A successfully refreshed from Google Patents.
US2888331A
Expired / Lapsed
US
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Testing device
Assignee: Individual
•
Filing: 1954-12-27
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Granted: 1959-05-26
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Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:11
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A DEVICE FOR TESTING A LIQUID-COOLED INTERNAL COMBUSTION ENGINE FOR LEAKAGE OF GAS FROM THE ENGINE COMBUSTION CHAMBER INTO THE LIQUID OF THE COOLING SYSTEM OF THE ENGINE, THE DEVICE COMPRISING A CLOSED VERTICAL CHAMBER HAVING A TOP OUTLET, AND INCLUDING A TRANSPARENT PORTION BELOW THE OUTLET, A POROUS MEMBER MOUNTED IN THE CHAMBER, A CHEMICAL SOLUTION IN THE CHAMBER OUTSIDE SAID MEMBER OF A NATURE REACTED UPON BY COMBUSTION GASES FROM WITHIN THE ENGINE, THE MEMBER BEING IMMERSED IN THE SOLUTION, A RIGID TUBULAR STEMDEPENDING FROM THE CHAMBER IN COMMUNICATION WITH THE LOWER END OF THE POROUS MEMBER AND OPEN ON ITS LOWER END, AND A TAPER STOPPER ON THE STEM ADAPTED FOR SEALING ENGAGEMENT WITH THE WATER INTAKE OPENING OF THE COOLING SYSTEM OF THE ENGINE; THE POROUS MEMBER BEING OF ELONGATED FORM UPSTANDING FROM THE BOTTOM OF THE CHAMBER AND HAVING
Claim 2
Independent Claim
144 words
A DEVICE FOR TESTING A LIQUID-COOLED INTERNAL COMBUSTION ENGINE FOR LEAKAGE OF GAS FROM THE ENGINE COMBUSTION CHAMBER INTO THE LIQUID OF THE COOLING SYSTEM OF THE ENGINE, THE DEVICE COMPRISING A CLOSED VERTICAL CHAMBER HAVING A TOP OUTLET, AND INCLUDING A TRANSPARENT PORTION BELOW THE OUTLET, A POROUS MEMBER MOUNTED IN THE CHAMBER, A CHEMICAL SOLUTION IN THE CHAMBER OUTSIDE SAID MEMBER OF A NATURE REACTED UPON BY COMBUSTION GASES FROM WITHIN THE ENGINE, THE MEMBER BEING IMMERSED IN THE SOLUTION, A RIGID TUBULAR STEMDEPENDING FROM THE CHAMBER IN COMMUNICATION WITH THE LOWER END OF THE POROUS MEMBER AND OPEN ON ITS LOWER END, AND A TAPER STOPPER ON THE STEM ADAPTED FOR SEALING ENGAGEMENT WITH THE WATER INTAKE OPENING OF THE COOLING SYSTEM OF THE ENGINE; THE POROUS MEMBER BEING OF ELONGATED FORM UPSTANDING FROM THE BOTTOM OF THE CHAMBER AND HAVING
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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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |