Patent US2154887A successfully refreshed from Google Patents.
Patent US3241537A successfully refreshed from Google Patents.
US3241537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric controlled crankcase ventilation systems
Assignee: Individual
•
Filing: 1965-01-04
•
Granted: 1966-03-22
•
Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Oscar F Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:44
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/04; F01M2013/0438; Y; Y10; Y10S; Y10S55/00; Y10S55/19
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
APPARATUS FOR FILTERING CRANKCASE VAPORS IN INTERNAL COMBUSTION ENGINES OF THE DIESEL TYPE HAVING AN AIR INLET MANIFOLD AND A RESTRICTIVE AIR FILTER ATTACHED TO SAID MANIFOLD CAUSING A SLIGHT VACUUM IN SAID MANIFOLD, COMPRISING IN COMBINATION, A CYLINDRICAL RECEPTACLE OPEN AT ONE END, A TOP COVER FOR SAID RECEPTACLE END, A REPLACEABLE FILTER ELEMENT EXTENDABLE WITHIN SAID RECEPTACLE AND CLAMPABLE BETWEEN SAID RECEPTACLE AND SAID COVER, A CRANKCASE VAPOR INLET INTO SAID RECEPTACLE EXTERIORLY OF SAID FILTER, AN ACID REACTIVE BAFFLE PLATE EXTERIORLY OF SAID FILTER TO CAUSE SEPARATION OF SOLID AND LIQUID PARTICLES IN SAID VAPOR, AN OUTLET IN SAID COVER CONNECTABLE WITH THE INTERIOR OF SAID FILTER ELEMENT, MEANS TO CONNECT SAID INLET WITH SAID CRANKCASE VAPOR SPACE, AND MEANS TO CONNECT SAID OUTLET WITH SAID MANIFOLD.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |