Patent US3587542A successfully refreshed from Google Patents.
US3587542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary engine vapor recycling device
Assignee: Green Bay Research Corp
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Filing: 1969-05-02
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Granted: 1971-06-28
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Expires: 1989-05-02
Abstract
Abstract A UNITARY ENGINE VAPOR RECYCLING DEVICE FOR CONNECTION BETWEEN THE SEALED CRANKCASE AND MANIFOLD OF AN ENGINE. THE DEVICE HAS A JACKETED SLEEVE FORMING AN OUTER CHAMBER, AND VALVE MEANS ARE DISPOSED IN THE SLEEVE WHICH ARE RESPONSIVE TO MANIFOLD VACUUM (OR CRANKCASE PRESSURE). THE SLEEVE IS PROVIDED WITH PORTS AT VARIOUS LEVELS, AND THE SLEEVE INTERIOR IS BLOCKED SO THAT GASES MUST PASS THROUGH THE CHAMBER TO GET TO THE DISCHARGE END OF THE DEVICE. A RESTRICTION IS PLACED IN THE CHAMBER ADJACENT THE BLOCKED PORTION OF THE SLEEVE.
Inventors
- 👤 Cecil W Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:31
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |