US3359952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure balanced sealing construction
Assignee: John Deere Technologies International Inc
•
Filing: 1966-01-06
•
Granted: 1967-12-26
•
Expires: 1986-01-06
Abstract
No abstract record available.
Inventors
- 👤 Jones Charles
- 👤 William S Hadaway
- 👤 Walter L Hermes
- 👤 Arthur M Scheerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:02
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A PRESSURE BALANCED SEALING CONSTRUCTION FOR AN INTERNAL COMBUSTION ENGINE OR THE LIKE HAVING AN OUTER BODY CONTAINING A CAVITY, A PISTON SUPPORTED ON AN ECCENTRIC SHAFT AND DISPOSED IN SAID CAVITY FOR MOVEMENT RELATIVE TO THE WALL OF SAID CAVITY, INTAKE MEANS COMMUNICATING WITH SAID CAVITY AT ONE PORTION THEREOF AND CRANKCASE MEANS COMMUNICATING WITH SAID CAVITY AT ANOTHER PORTION THEREOF WITH THE PRESSURE IN SAID INTAKE MEANS AND SAID CRANKCASE MEANS VARYING RELATIVE TO ONE ANOTHER, SAID PRESSURE BALANCED SEALING CONSTRUCTION COMPRISING OIL SEAL MEANS DISPOSED RADIALLY OUTWARDLY OF SAID ECCENTRIC SHAFT IN SEALING ENGAGEMENT WITH THE ADJACENT WALLS OF SAID PISTON AND SAID CAVITY FOR SEALING SAID INTAKE MEANS FROM SAID CRANKCASE MEANS, SAID CRANKCASE MEANS
Claim 2
Dependent Claim
119 words
A PRESSURE BALANCED SEALING CONSTRUCTION FOR AN INTERNAL COMBUSTION ENGINE OR THE LIKE HAVING AN OUTER BODY CONTAINING A CAVITY, A PISTON SUPPORTED ON AN ECCENTRIC SHAFT AND DISPOSED IN SAID CAVITY FOR MOVEMENT RELATIVE TO THE WALL OF SAID CAVITY, INTAKE MEANS COMMUNICATING WITH SAID CAVITY AT ONE PORTION THEREOF AND CRANKCASE MEANS COMMUNICATING WITH SAID CAVITY AT ANOTHER PORTION THEREOF WITH THE PRESSURE IN SAID INTAKE MEANS AND SAID CRANKCASE MEANS VARYING RELATIVE TO ONE ANOTHER, SAID PRESSURE BALANCED SEALING CONSTRUCTION COMPRISING OIL SEAL MEANS DISPOSED RADIALLY OUTWARDLY OF SAID ECCENTRIC SHAFT IN SEALING ENGAGEMENT WITH THE ADJACENT WALLS OF SAID PISTON AND SAID CAVITY FOR SEALING SAID INTAKE MEANS FROM SAID CRANKCASE MEANS, SAID CRANKCASE MEANS
References Cited (Backward Citations)
US3059628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |