Patent US3051643A successfully refreshed from Google Patents.
US3051643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring apparatus
Assignee: Individual
•
Filing: 1959-03-16
•
Granted: 1962-08-28
•
Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 Bergson Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:33
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0027; G01N33/0036; G01N33/0059; G01N33/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A MEASURING APPARATUS COMPRISING IN COMBINATION, A DETECTOR CELL FOR MEASURILNG A COMPONENT OF A GAS PASSED THERETHROUGH, PUMP MEANS, A CLOSED LOOP GAS RECIRCULATING PATH INCLUDING SAID DETECTOR CELL AND SAID PUMP MEANS, SAID CLOSED LOOP GAS RECIRCULATING PATH HAVING AN INLET PORT CONNECTED TO A FIRST NORMALLY CLOSED VALVE AND AN OUTLET PORT CONNECTED TO A SECOND NORMALLY CLOSED VALVE, SAID FIRST VALVE ADAPTED TO BE CONNECTED TO A SOURCE OF GAS UNDER A FIRST PRESSURE AND ADJUSTABLE TO AN OPEN CONDITION TO ADMIT SAID GAS AT SAID FIRST PRESSURE TO SAID CLOSED LOOP RECIRCULATING PATH, SAID PUMP MEANS ADAPTED TO RECIRCULATE GAS ADMITTEWD TO SAID PATH THROUGH SAID DETECTOR CELL, SAID SECOND VALVE ADJUSTABLE TO AN OPEN CONDITION TO EXHAUST GAS FROM SAID CLOSED LOOP RECIRCULATING PATH.
Claim 2
Dependent Claim
130 words
A MEASURING APPARATUS COMPRISING IN COMBINATION, A DETECTOR CELL FOR MEASURILNG A COMPONENT OF A GAS PASSED THERETHROUGH, PUMP MEANS, A CLOSED LOOP GAS RECIRCULATING PATH INCLUDING SAID DETECTOR CELL AND SAID PUMP MEANS, SAID CLOSED LOOP GAS RECIRCULATING PATH HAVING AN INLET PORT CONNECTED TO A FIRST NORMALLY CLOSED VALVE AND AN OUTLET PORT CONNECTED TO A SECOND NORMALLY CLOSED VALVE, SAID FIRST VALVE ADAPTED TO BE CONNECTED TO A SOURCE OF GAS UNDER A FIRST PRESSURE AND ADJUSTABLE TO AN OPEN CONDITION TO ADMIT SAID GAS AT SAID FIRST PRESSURE TO SAID CLOSED LOOP RECIRCULATING PATH, SAID PUMP MEANS ADAPTED TO RECIRCULATE GAS ADMITTEWD TO SAID PATH THROUGH SAID DETECTOR CELL, SAID SECOND VALVE ADJUSTABLE TO AN OPEN CONDITION TO EXHAUST GAS FROM SAID CLOSED LOOP RECIRCULATING PATH.
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |