Patent US3097497A successfully refreshed from Google Patents.
US3097497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen supply systems
Assignee: Normalair Ltd
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Filing: 1960-08-10
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Granted: 1963-07-16
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Expires: 1980-08-10
Abstract
No abstract record available.
Inventors
- 👤 Peter W Fitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:09
CPC Classifications
A; A62; A62B; A62B7/00; A62B7/06; F; F17; F17C; F17C9/00; F17C9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AN OPERATIONALLY INCLINABLE AND INVERTIBLE LIQUID OXYGEN CONVERTER HAVING AUTOMATIC PRESSURE CONTROLLING MEANS WHEREBY WHEN THE PRESSURE IS BELOW NORMAL WORKING PRESSURE OUTLET MEANS FROM SAID CONVERTER, THROUGH HEAT PRESSURE OUTLET MEANS FFROM SAID ONVERTER,THROUGH HEAT EXCHANGER CONDUIT MEANS EXTERNAL OF SAID CONVERTER, THROUGH HEAT EXCHANGING CONDUIT MEANS INSIDE SAID CONVERTER AND THENCE TO A DELIVERY CONDUIT, SAID HEAT EXCHANGING CONDUIT MEANS INSIDE SAID CONVERTER BEING SUITABLY SHAPED AND POSITIONED IN SUCH A MANNER THAT A PORTION THEREOF IS SUBTANTIALLY ALWAYS IN CONTACT WITH THE LIQUID PHASE OF SAID CONVERTER WHATEVER THE ATTITUDE OF SAID CONVERTER, WHEN THE PRESSURE IN SAID CONVERTER ATTAINS A CHOSEN NORMAL WORKING PRESSURE OXYGEN FLOWS THROUGH A HIGH PRESSURE OUTLET MEANS OF SAID CONVERTER TO SAID DELIVERY CONDUIT.
Claim 2
Dependent Claim
123 words
AN OPERATIONALLY INCLINABLE AND INVERTIBLE LIQUID OXYGEN CONVERTER HAVING AUTOMATIC PRESSURE CONTROLLING MEANS WHEREBY WHEN THE PRESSURE IS BELOW NORMAL WORKING PRESSURE OUTLET MEANS FROM SAID CONVERTER, THROUGH HEAT PRESSURE OUTLET MEANS FFROM SAID ONVERTER,THROUGH HEAT EXCHANGER CONDUIT MEANS EXTERNAL OF SAID CONVERTER, THROUGH HEAT EXCHANGING CONDUIT MEANS INSIDE SAID CONVERTER AND THENCE TO A DELIVERY CONDUIT, SAID HEAT EXCHANGING CONDUIT MEANS INSIDE SAID CONVERTER BEING SUITABLY SHAPED AND POSITIONED IN SUCH A MANNER THAT A PORTION THEREOF IS SUBTANTIALLY ALWAYS IN CONTACT WITH THE LIQUID PHASE OF SAID CONVERTER WHATEVER THE ATTITUDE OF SAID CONVERTER, WHEN THE PRESSURE IN SAID CONVERTER ATTAINS A CHOSEN NORMAL WORKING PRESSURE OXYGEN FLOWS THROUGH A HIGH PRESSURE OUTLET MEANS OF SAID CONVERTER TO SAID DELIVERY CONDUIT.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |