US3175579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefied gas filler and eduction device
Assignee: Bastian Blessing Co
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Filing: 1963-04-30
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Granted: 1965-03-30
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Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 Harry N Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:30
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/04; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0326; F17C2205/0329; F17C2205/0332; F17C2205/0382; F17C2205/0385; F17C2205/0388; F17C2205/0394; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/85986; Y10T137/86002; Y10T137/8601
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A LIQUID EDUCTION DEVICE COMPRISING A TANK FOR STORING LIQUEFIED GAS IN BOTH ITS LIQUID AND VAPOR PHASES, OUTLET MEANS FOR SAID TANK INCLUDING A VALVE HOUSING HAVING A VALVE SEAT FACING THE TANK IN COMMUNICATION WITH SAID TANK AT THE BOTTOM THERE AND SUBJECTED TO THE HYDRAULIC HEAD OF THE LIQUID IN SAID TANK IN ADDITION TO THE PRESSURE IN THE TANK OF THE VAPOR THEREON, A VALVE MEMBER CLOSING AGAINST SAID VALVE SEAT AND INCLUDING A ROTATABLE STEM, MEANS FOR CLOSING THE VALVE INCLUDING AN ELEMENT RESILIENTLY CLOSING THE VALVE MEMBER AND A CAM MEMBER OPERATED BY ROTATION OF SAID STEM FOR POSITIVELY CLOSING THE VALVE MEMBER, A LIQUID PUMP CONNECTED AT ITS INLET TO THE VALVE SEAT AND HAVING AN OUTLET WITH A SHUT-OFF VALVE THEREIN, A BLEED PASSAGE BYPASSING SAID VALVE HEAD AND SEAT FOR LIQUID PRIMING OF THE PUMP INLET, PRESSURE RESPONSIVE MEANS FOR RECIPROCATING SAID VALVE STEM INCLUDING A DIAPHRAGM, MEANS FOR APPLYING TO ONE SIDE OF THE DIAPHRAGM LIQUID PRESSURE FROM THE OUTPUT SIDE OF THE PUMP TO OPEN SAID VALVE AND INCLUDING A SHUT-OFF VALVE, MEANS FOR VENTING SAID LIQUID PRESSURE, AND MEANS FOR APPLYING TO THE OTHER SIDE OF THE DIAPHRAGM LIQUID PRESSURE FROM THE INLET OF SAID PUMP TO URGE CLOSURE OF THE VALVE.
Claim 2
Dependent Claim
214 words
A LIQUID EDUCTION DEVICE COMPRISING A TANK FOR STORING LIQUEFIED GAS IN BOTH ITS LIQUID AND VAPOR PHASES, OUTLET MEANS FOR SAID TANK INCLUDING A VALVE HOUSING HAVING A VALVE SEAT FACING THE TANK IN COMMUNICATION WITH SAID TANK AT THE BOTTOM THERE AND SUBJECTED TO THE HYDRAULIC HEAD OF THE LIQUID IN SAID TANK IN ADDITION TO THE PRESSURE IN THE TANK OF THE VAPOR THEREON, A VALVE MEMBER CLOSING AGAINST SAID VALVE SEAT AND INCLUDING A ROTATABLE STEM, MEANS FOR CLOSING THE VALVE INCLUDING AN ELEMENT RESILIENTLY CLOSING THE VALVE MEMBER AND A CAM MEMBER OPERATED BY ROTATION OF SAID STEM FOR POSITIVELY CLOSING THE VALVE MEMBER, A LIQUID PUMP CONNECTED AT ITS INLET TO THE VALVE SEAT AND HAVING AN OUTLET WITH A SHUT-OFF VALVE THEREIN, A BLEED PASSAGE BYPASSING SAID VALVE HEAD AND SEAT FOR LIQUID PRIMING OF THE PUMP INLET, PRESSURE RESPONSIVE MEANS FOR RECIPROCATING SAID VALVE STEM INCLUDING A DIAPHRAGM, MEANS FOR APPLYING TO ONE SIDE OF THE DIAPHRAGM LIQUID PRESSURE FROM THE OUTPUT SIDE OF THE PUMP TO OPEN SAID VALVE AND INCLUDING A SHUT-OFF VALVE, MEANS FOR VENTING SAID LIQUID PRESSURE, AND MEANS FOR APPLYING TO THE OTHER SIDE OF THE DIAPHRAGM LIQUID PRESSURE FROM THE INLET OF SAID PUMP TO URGE CLOSURE OF THE VALVE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |