Patent US766953A successfully refreshed from Google Patents.
Patent US3081730A successfully refreshed from Google Patents.
US3081730A
Expired / Lapsed
US
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Under water venting system for marine fuel tanks
Assignee: Individual
•
Filing: 1958-09-04
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Granted: 1963-03-19
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Expires: 1978-09-04
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Dvorachek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:50
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K17/19; F16K17/194; B; B63; B63J; B63J2/00; B63J2/02; B63J2/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A MARINE FUEL SYSTEM COMPRISING IN COMBINATION, A FUEL TANK, A FILLER PIPE LEADING INTO THE TANK FOR ADMISSION OF FUEL, A RESILIENT SEAL RING MOUNTED ON SAID FILLER PIPE, SAID SEAL RING PROJECTING INWARDLY AND HAVING MEANS FORMING AN OPENING FOR SEALING THE SPACE BETWEEN THE FILLER NOZZLE AND THE FILLER PIPE AGAINST THE ESCAPE OF FUEL AND VAPORS DURING THE ADMISSION OF FUEL INTO THE TANK, SEAL RING RETAINING MEANS ENGAGING BOTH SIDES OF SAID SEAL RING AND ENGAGING SAID FILLER PIPE, A FUEL DISCHARGE LINE LEADING FROM SAID TANK, A CONTROL VALVE HAVING A VAPOR OUTLET PORT FOR DISCHARGING VAPORS AND AN AIR INLET PORT FOR ADMITTING AIR, A VENT PIPE CONNECTING SAID CONTROL VALVE TO THE UPPER PART OF SAID TANK, A VAPOR DISCHARGE PIPE CONNECTED TO SAID VAPOR OUTLET PORT AND TERMINATING REMOTELY FROM THE FUEL SYSTEM, AND CHECK VALVE MEANS IN SAID CONTROL VALVE PREVENTING OUTWARD FLOW THROUGH SAID AIR INLET PORT AND INWARD FLOW THROUGH SAID VAPOR OUTLET PORT.
Claim 2
Dependent Claim
166 words
A MARINE FUEL SYSTEM COMPRISING IN COMBINATION, A FUEL TANK, A FILLER PIPE LEADING INTO THE TANK FOR ADMISSION OF FUEL, A RESILIENT SEAL RING MOUNTED ON SAID FILLER PIPE, SAID SEAL RING PROJECTING INWARDLY AND HAVING MEANS FORMING AN OPENING FOR SEALING THE SPACE BETWEEN THE FILLER NOZZLE AND THE FILLER PIPE AGAINST THE ESCAPE OF FUEL AND VAPORS DURING THE ADMISSION OF FUEL INTO THE TANK, SEAL RING RETAINING MEANS ENGAGING BOTH SIDES OF SAID SEAL RING AND ENGAGING SAID FILLER PIPE, A FUEL DISCHARGE LINE LEADING FROM SAID TANK, A CONTROL VALVE HAVING A VAPOR OUTLET PORT FOR DISCHARGING VAPORS AND AN AIR INLET PORT FOR ADMITTING AIR, A VENT PIPE CONNECTING SAID CONTROL VALVE TO THE UPPER PART OF SAID TANK, A VAPOR DISCHARGE PIPE CONNECTED TO SAID VAPOR OUTLET PORT AND TERMINATING REMOTELY FROM THE FUEL SYSTEM, AND CHECK VALVE MEANS IN SAID CONTROL VALVE PREVENTING OUTWARD FLOW THROUGH SAID AIR INLET PORT AND INWARD FLOW THROUGH SAID VAPOR OUTLET PORT.
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |