US3045665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for maintaining constant oxygen partial pressure and measuring oxygen consumption
Assignee: ABB Training Center GmbH and Co KG
•
Filing: 1957-09-11
•
Granted: 1962-07-24
•
Expires: 1977-09-11
Abstract
No abstract record available.
Inventors
- 👤 Moyat Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:23
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2066; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/497; G01N7/00; G01N7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A DEVICE FOR MEASURING METABOLIC RATES IN A PROCESS WHEREIN CARBON DIOXIDE IS EVOLVED, SAID DEVICE COMPRISING A CLOSED CHAMBER WHEREIN THE PROCESS MAY TAKE PLACE, IN ELECTROLYTIC CELL FOR PRODUCING OXYGEN AND CLOSED OFF FROM THE ATMOSPHERE; A DUCT CONNECTING THE CELL AND CHAMBER FOR PASSAGE OF OXYGEN FROM THE ANODE PORTION TO THE CHAMBER; MEANS FOR SUPPRESSING THE FORMATION OF HYDROGEN BY THE CELL; A SOURCE OF CURRENT FOR THE CELL; A VARIABLE RESISTOR INTERPOSED BETWEEN THE SOURCE AND THE CELL AND RESPONSIVE TO GAS PRESSURE CHANGES IN THE CELL AND CHAMBER FOR MAKING THE FLOW OF CURRENT THROUGH THE CELL RESPONSIVE TO DEVIATION IN OXYGEN PRESSURE FROM THAT OXYGEN PRESSURE INTIALLY IN THE CELL AND IRRESPECTIVE OF BAROMETRIC PRESSURE CHANGES; AN ABSORBER FOR REMOVING CARBON DIOXIDE FROM THE CHAMBER, AND AN AMMETER FOR DETECTING FLOW OF CURRENT THROUGH THE CELL.
Claim 2
Independent Claim
143 words
A DEVICE FOR MEASURING METABOLIC RATES IN A PROCESS WHEREIN CARBON DIOXIDE IS EVOLVED, SAID DEVICE COMPRISING A CLOSED CHAMBER WHEREIN THE PROCESS MAY TAKE PLACE, IN ELECTROLYTIC CELL FOR PRODUCING OXYGEN AND CLOSED OFF FROM THE ATMOSPHERE; A DUCT CONNECTING THE CELL AND CHAMBER FOR PASSAGE OF OXYGEN FROM THE ANODE PORTION TO THE CHAMBER; MEANS FOR SUPPRESSING THE FORMATION OF HYDROGEN BY THE CELL; A SOURCE OF CURRENT FOR THE CELL; A VARIABLE RESISTOR INTERPOSED BETWEEN THE SOURCE AND THE CELL AND RESPONSIVE TO GAS PRESSURE CHANGES IN THE CELL AND CHAMBER FOR MAKING THE FLOW OF CURRENT THROUGH THE CELL RESPONSIVE TO DEVIATION IN OXYGEN PRESSURE FROM THAT OXYGEN PRESSURE INTIALLY IN THE CELL AND IRRESPECTIVE OF BAROMETRIC PRESSURE CHANGES; AN ABSORBER FOR REMOVING CARBON DIOXIDE FROM THE CHAMBER, AND AN AMMETER FOR DETECTING FLOW OF CURRENT THROUGH THE CELL.
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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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |