Patent US3160487A successfully refreshed from Google Patents.
US3160487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breather cap
Assignee: Novo Industrial Corp
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Filing: 1963-02-25
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Granted: 1964-12-08
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Willis H Risse
- 👤 Domenic P Tortorici
- 👤 Raymond G Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:18
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/02; F02M35/04; F01; F01M; F01M13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A BREATHER CAP ADAPTED TO BE MOUNTED ON THE FILL TUBE OF AN INTERNAL COMBUSION ENGINE, A CAP TYPE HOUSING HAVING AN EXTERIOR AND INTERIOR CLOSED AT ONE END AND OPEN AT THE OTHER AND DEFINING A GENERALLY ANNULAR FILTER SPACE, INLET OPENINGS DEFINED AT THE LOWER END OF THE FILTER SPACE AND AN OUTLET OPENING DEFINED GENERALLY IN THE CENTER OF THE INTERIOR WITHIN THE FILTER SPACE, AND A CHECK VALVE MOUNTED ON THE OUTLET WITHIN THE FILTER SPACE TO PROVIDE FOR THE FREE FLOW OF AIR INTO THE FILL TUBE BUT PREVENTING THE REVERSE FLOW OF CRANKCASE VAPORS OUT OF THE FILL TUBE.
Claim 2
Dependent Claim
106 words
IN A BREATHER CAP ADAPTED TO BE MOUNTED ON THE FILL TUBE OF AN INTERNAL COMBUSION ENGINE, A CAP TYPE HOUSING HAVING AN EXTERIOR AND INTERIOR CLOSED AT ONE END AND OPEN AT THE OTHER AND DEFINING A GENERALLY ANNULAR FILTER SPACE, INLET OPENINGS DEFINED AT THE LOWER END OF THE FILTER SPACE AND AN OUTLET OPENING DEFINED GENERALLY IN THE CENTER OF THE INTERIOR WITHIN THE FILTER SPACE, AND A CHECK VALVE MOUNTED ON THE OUTLET WITHIN THE FILTER SPACE TO PROVIDE FOR THE FREE FLOW OF AIR INTO THE FILL TUBE BUT PREVENTING THE REVERSE FLOW OF CRANKCASE VAPORS OUT OF THE FILL TUBE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |