US3118435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crank case breather
Assignee: Individual
•
Filing: 1961-10-12
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Granted: 1964-01-21
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Almquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:24
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7749
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A BREATHER FOR USE IN CONNECTION WITH AN INTERNAL COMBUSTION ENGINE OF THE TYPE WHICH INCLUDES A CARBURETOR AND A CRANK CASE, SAID BREATHER INCLUDING A HOLLOW CASING LOCATED BETWEEN SAID CRANK CASE AND SAID CARBURETOR, A FIRST TUBE CONNECTING ONE END OF SAID CASING TO SAID CARBURETOR, A SECOND TUBE CONNECTING THE OTHER END OF SAID CASING TO SAID CRANK CASE, AND A HEAT RESPONSIVE ELEMENT INTERMEDIATE SAID CARBURETOR AND SAID CRANK CASE MOVABLE, WHEN SUBJECTED TO A TEMPERATURE OF A FIRST, RELATIVELY LOW, PREDETERMINED VALUE, TO A FIRST POSITION IN WHICH IT OBSTRUCTS THE FLOW OF GASES FROM SAID CRANK CASE TO SAID CARBURETOR, SAID HEAT RESPONSIVE ELEMENT BEING CALIBRATED TO MOVE, WHEN SUBJECTED TO A SECOND, RELATIVELY HIGHER, PREDETERMINED VALUE, TO A SECOND POSITION IN WHICH GASES CAN FLOW FROM CRANK TO THE CARBURETOR.
Claim 2
Dependent Claim
137 words
A BREATHER FOR USE IN CONNECTION WITH AN INTERNAL COMBUSTION ENGINE OF THE TYPE WHICH INCLUDES A CARBURETOR AND A CRANK CASE, SAID BREATHER INCLUDING A HOLLOW CASING LOCATED BETWEEN SAID CRANK CASE AND SAID CARBURETOR, A FIRST TUBE CONNECTING ONE END OF SAID CASING TO SAID CARBURETOR, A SECOND TUBE CONNECTING THE OTHER END OF SAID CASING TO SAID CRANK CASE, AND A HEAT RESPONSIVE ELEMENT INTERMEDIATE SAID CARBURETOR AND SAID CRANK CASE MOVABLE, WHEN SUBJECTED TO A TEMPERATURE OF A FIRST, RELATIVELY LOW, PREDETERMINED VALUE, TO A FIRST POSITION IN WHICH IT OBSTRUCTS THE FLOW OF GASES FROM SAID CRANK CASE TO SAID CARBURETOR, SAID HEAT RESPONSIVE ELEMENT BEING CALIBRATED TO MOVE, WHEN SUBJECTED TO A SECOND, RELATIVELY HIGHER, PREDETERMINED VALUE, TO A SECOND POSITION IN WHICH GASES CAN FLOW FROM CRANK TO THE CARBURETOR.
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |