US2846386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reference electrode for making ph measurements
Assignee: CAE Inc
•
Filing: 1953-06-22
•
Granted: 1958-08-05
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Otto V Ingruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A REFERENCE ELECTRODE FOR USE IN MAKING PH MEASUREMENTS ON BODIES OF TEST LIQUIDS AT TEMPERATURES SUBSTANTIALLY ABOVE NORMAL ATMOSPHERIC TEMPERATURES, COMPRISING AN ELONGATED HOLLOW ELECTRODE STEM CONTAINING AN ELECTROLYTE AND HAVING IN ONE END PORTION THEREOF MEANS FOR PROVIDING A LIQUID JUNCTION BETWEEN SAID ELECTROLYTE AND A TEST LIQUID WHEN SAID END PORTION OF SAID STEM IS IMMERSED IN SAID TEST LIQUID, SAID ELECTRODE STEM HAVING AN INTERMEDIATE PORTION NEXT ADJACENT TO SAID END PORTION AND A REMOTE PORTION ON THE SIDE OF SAID INTERMEDIATE PORTION AWAY FROM SAID END PORTION, SAID ELECTRODE STEM BEING ADAPTED TO BE IMMERSED IN SAID TEST LIQUID WITH SAID END PORTION EXTENDING INTO SAID TEST LIQUID WHEREBY THE ELECTROLYTE IN SAID END PORTION WILL ASSUME SUBSTANTIALLY THE TEMPERATURES OF SAID BODY OF TEST LIQUID, SAID REMOTE PORTION CONTAINING ELECTROLYTE IN COMMUNICATION WITH THE ELECTROLYTE IN SAID END PORTION OF SAID STEM, MEANS FOR COOLING THE ELECTROLYTE IN THE INTERMEDIATE PORTION OF SAID STEM TO LIMIT HEAT EXCHANGE BETWEEN THE ELECTROLYTE IN THE END PORTION AND THE ELECTROLYTE IN THE REMOTE PORTION OF SAID STEM WHEREBY THE ELECTROLYTE IN SAID REMOTE PORTION OF SAID STEM IS MAINTAINED AT A TEMPERATURE SUBSTANTIALLY BELOW THAT OF SAID BODY OF TEST LIQUID, SAID ELECTROLYTE
Claim 2
Dependent Claim
207 words
A REFERENCE ELECTRODE FOR USE IN MAKING PH MEASUREMENTS ON BODIES OF TEST LIQUIDS AT TEMPERATURES SUBSTANTIALLY ABOVE NORMAL ATMOSPHERIC TEMPERATURES, COMPRISING AN ELONGATED HOLLOW ELECTRODE STEM CONTAINING AN ELECTROLYTE AND HAVING IN ONE END PORTION THEREOF MEANS FOR PROVIDING A LIQUID JUNCTION BETWEEN SAID ELECTROLYTE AND A TEST LIQUID WHEN SAID END PORTION OF SAID STEM IS IMMERSED IN SAID TEST LIQUID, SAID ELECTRODE STEM HAVING AN INTERMEDIATE PORTION NEXT ADJACENT TO SAID END PORTION AND A REMOTE PORTION ON THE SIDE OF SAID INTERMEDIATE PORTION AWAY FROM SAID END PORTION, SAID ELECTRODE STEM BEING ADAPTED TO BE IMMERSED IN SAID TEST LIQUID WITH SAID END PORTION EXTENDING INTO SAID TEST LIQUID WHEREBY THE ELECTROLYTE IN SAID END PORTION WILL ASSUME SUBSTANTIALLY THE TEMPERATURES OF SAID BODY OF TEST LIQUID, SAID REMOTE PORTION CONTAINING ELECTROLYTE IN COMMUNICATION WITH THE ELECTROLYTE IN SAID END PORTION OF SAID STEM, MEANS FOR COOLING THE ELECTROLYTE IN THE INTERMEDIATE PORTION OF SAID STEM TO LIMIT HEAT EXCHANGE BETWEEN THE ELECTROLYTE IN THE END PORTION AND THE ELECTROLYTE IN THE REMOTE PORTION OF SAID STEM WHEREBY THE ELECTROLYTE IN SAID REMOTE PORTION OF SAID STEM IS MAINTAINED AT A TEMPERATURE SUBSTANTIALLY BELOW THAT OF SAID BODY OF TEST LIQUID, SAID ELECTROLYTE
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |