US3325975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: Individual
•
Filing: 1965-04-26
•
Granted: 1967-06-20
•
Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 George C Coverston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:40
CPC Classifications
F; F02; F02M; F02M19/00; F02M19/02; F02M19/0228; F02M29/00; F02M29/04; F02M33/00; F02M33/02; F02M33/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
AN UP-DRAFT CARBURETOR FOR PRODUCING A COMBUSTIBLE GAS AND LIQUID MIXTURE COMPRISING, A CLOSED CONTAINER HAVING A CENTRAL GAS INLET CONDUIT EXTENDING UPWARDLY THROUGH THE BOTTOM THEREOF AND HAVING AN OUTLET AT THE TOP, MEANS FOR SUPPLYING AND MAINTAINING A BODY OF LIQUID IN THE CONTAINER, AN UPWARDLY DIRECTED ANNULAR VENTURI MEANS SUPPORTED WITHIN THE CONTAINER, A PLURALITY OF ANNULARLY ARRANGED NOZZLES FOR INTRODUCING LIQUID FROM SAID BODY OF LIQUID INTO THE THROAT OF SAID VENTURI MEANS AT A PLURALITY OF SPACED LOCATIONS, AND BAFFLE MEANS FOR DIRECTING AIR FROM THE INLET DOWNWARDLY AND OUTWARDLY IN AN ANNULAR STREAM THENCE UPWARDLY INTO SAID VENTURI MEANS TO VAPORIZE LIQUID FROM SAID NOZZLE THENCE DOWNWARDLY IN AN ANNULAR STREAM TO RETURN UNVAPORIZED PARTICLES TO SAID BODY OF LIQUID THENCE UPWARDLY IN AN ANNULAR STREAM TOWARD SAID OUTLET.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |