Patent EP0468585A2 successfully refreshed from Google Patents.
Patent US4230646A successfully refreshed from Google Patents.
US4230646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor device
Assignee: ARKOS SpA
•
Filing: 1979-01-05
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Granted: 1980-10-28
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Expires: 1999-01-05
Abstract
Abstract A carburetor of the membrane type for correct operation of an engine partially or completely submerged in a liquid such as water. The carburetor has a fuel accumulating chamber which is connected through conventional idling and high-speed jets to a Venturi upstream from which there is provided an air intake manifold. Externally of the compensating membrane that is provided a sealed chamber which communicates via a flexible tube with a compensating chamber which is maintained naturally or artificially at atmospheric pressure.
Inventors
- 👤 Angiolino Ghizzoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:52
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10006; F02M35/10019; F02M17/00; F02M17/02; F02M17/04; F02M35/1015; F02M35/1017; F02M35/10196; F02M35/16; F02M35/165; F02M35/167; F02M35/168; Y; Y10; Y10S; Y10S261/00; Y10S261/68
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
In a compensating membrane carburetor having a fuel accumulating chamber connected through conventional idling and high-speed jets to a Venturi upstream from which there is provided an air intake manifold, the improvement which comprises compensating chamber means maintained naturally or artificially at atmospheric pressure, second chamber means for sealing the external face of the compensating membrane from the environment of the carburetor and means partially disposed in the air intake manifold providing fluid communication between the compensating chamber means and the second chamber means to maintain the second chamber means at atmospheric pressure comprising flexible tube means in the air intake manifold having a free end that opens to the compensating chamber means.
Claim 2
Dependent Claim
113 words
In a compensating membrane carburetor having a fuel accumulating chamber connected through conventional idling and high-speed jets to a Venturi upstream from which there is provided an air intake manifold, the improvement which comprises compensating chamber means maintained naturally or artificially at atmospheric pressure, second chamber means for sealing the external face of the compensating membrane from the environment of the carburetor and means partially disposed in the air intake manifold providing fluid communication between the compensating chamber means and the second chamber means to maintain the second chamber means at atmospheric pressure comprising flexible tube means in the air intake manifold having a free end that opens to the compensating chamber means.
Claim 3
Dependent Claim
27 words
Carburetor of claim 1 wherein the flexible tube means is mounted in the air intake manifold for the carburetor which manifold communicates with the compensating chamber means.
Claim 4
Dependent Claim
19 words
Carburetor of claim 1 further comprising compensating air bag means connected to the free end of the tube means.
Claim 5
Dependent Claim
13 words
Carburetor of claim 1 wherein the compensating chamber means is an air tank.
Claim 6
Dependent Claim
13 words
In a water submissible engine the improvement comprising the carburetor of claim 4.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |