US3220202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for storing and pumping a volatile liquid
Assignee: Union Carbide Corp
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Filing: 1964-05-15
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Granted: 1965-11-30
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Christian F Gottzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:31
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/06; F04B15/08; F04B53/00; F04B53/008; F04B53/10; F04B53/102; F04B53/1022; F04B53/1025; F04B53/16; F04B53/162; F04B53/166; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/0469; F05C2201/0475; F05C2201/0478; F05C2225/00; F05C2225/04; F17; F17C; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0171; F17C2227/0178; Y; Y10; Y10S; Y10S417/00; Y10S417/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A RECIPROCATING PUMP FOR LIQUIEFIED GASES HAVING A BOILING POINT BELOW 273*K., SAID PUMP COMPRISING AN ELONGATED PUMP BODY HAVING A PUMPING CHAMBER THEREIN ADJACENT ONE END AND AN OPENING AT THE OTHER END; AN INLET VALVE CONTROLLED PORT NEAR THE END OF SAID PUMPING CHAMBER OPPOSITE SAID OPENING; AN INLET VALVE ASSEMBLY COMPRISING A PLATE VALVE POSITIONED TO CONTROL FLOW THROUGH SAID PORT AND HAVING A PORTION EXTENDING INTO SAID PUMPING CHAMBER; A RECIPROCATING PLUNGER EXTENDING THROUGH SAID OPENING IN THE PUMP BODY HAVING AN INNER PUMPING END CAVITY OPERABLE IN SAID PUMPING CHAMBER AND CONSTRUCTED AND ARRANGED FOR ENCLOSING THE PORTION OF SAID PLATE VALVE EXTENDING INTO SAID PUMPING CHAMBER AND SUBSTANTIALLY MINIMIZING THE CLEARANCE VOLUME WITHIN SAID
Claim 2
Dependent Claim
120 words
A RECIPROCATING PUMP FOR LIQUIEFIED GASES HAVING A BOILING POINT BELOW 273*K., SAID PUMP COMPRISING AN ELONGATED PUMP BODY HAVING A PUMPING CHAMBER THEREIN ADJACENT ONE END AND AN OPENING AT THE OTHER END; AN INLET VALVE CONTROLLED PORT NEAR THE END OF SAID PUMPING CHAMBER OPPOSITE SAID OPENING; AN INLET VALVE ASSEMBLY COMPRISING A PLATE VALVE POSITIONED TO CONTROL FLOW THROUGH SAID PORT AND HAVING A PORTION EXTENDING INTO SAID PUMPING CHAMBER; A RECIPROCATING PLUNGER EXTENDING THROUGH SAID OPENING IN THE PUMP BODY HAVING AN INNER PUMPING END CAVITY OPERABLE IN SAID PUMPING CHAMBER AND CONSTRUCTED AND ARRANGED FOR ENCLOSING THE PORTION OF SAID PLATE VALVE EXTENDING INTO SAID PUMPING CHAMBER AND SUBSTANTIALLY MINIMIZING THE CLEARANCE VOLUME WITHIN SAID
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |