Patent US3568435A successfully refreshed from Google Patents.
US3568435A
Expired / Lapsed
US
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Method of and apparatus for supercharging externally ignited internal combustion engines
Assignee: Individual
•
Filing: 1969-03-27
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Granted: 1971-03-09
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Expires: 1989-03-27
Abstract
Abstract IN SUPERCHARGED INTERNAL COMBUSTION ENGINES PART OF THE COMPRESSED INTAKE AIR IS DISCHARGED FROM THE INTAKE CONDUIT BY MEANS OF A BYPASS ADJUSTING MECHANISM WHICH IS RESPONSIVE TO PRESSURE CONDITIONS IN SAID CONDUIT AND WHICH CONTROLS BYPASS OPENINGS THEREIN WITH A VARYING PRESSURE DERIVED FROM THE DIFFERENCE BETWEEN AT LEAST ONE STATIC PRESSURE AND THE TOTAL PRESSURE OF THE COMPRESSED INTAKE AIR.
Inventors
- 👤 Michael G May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:53
CPC Classifications
F; F02; F02D; F02D9/00; F02B; F02B37/00; F02B37/12; F02B37/16; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0246; F02D2700/0248; F02D2700/0253; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |