Patent US2556832A successfully refreshed from Google Patents.
US2556832A
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Gas analyzing apparatus
Assignee: Honeywell Inc
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Filing: 1947-03-12
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Granted: 1951-06-12
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Expires: 1967-03-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Vollrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:54
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24; Y; Y10; Y10S; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A GAS ANALYZING DEVICE, THE COMBINATION OF MEANS FORMING A PATH THROUGH WHICH GAS TO BE ANALYZED PASSES INCLUDING AN ELECTRICAL FILTER REQUIRING A PREDETERMINED TIME AFTER POWER IS APPLIED THERETO TO BECOME ACTIVE, ANALYZING APPARATUS, POWER-OPERATED MECHANISM TO DRAW GAS TO BE ANALYZED THROUGH SAID FILTER AND APPARATUS AND A NORMALLY CLOSED VALVE LOCATED BETWEEN SAID FILTER AND APPARATUS, MEANS TO APPLY POWER TO SAID FILTER, TO SAID MECHANISM TO START ITS OPERATION AND TO SAID VALVE TO OPEN IT, AND SLOW-CLOSING FAST-OPENING, POWER-CONTROLLING MEANS TO DELAY THE APPLICATION OF POWER TO SAID MECHANISM TIME HAS VALVE UNTIL AFTER SAID PREDETERMINED TIME HAS ELAPSED WHEREBY UNFILTERED GAS CONNOT PASS TO SAID APPARATUS.
Claim 2
Dependent Claim
114 words
IN A GAS ANALYZING DEVICE, THE COMBINATION OF MEANS FORMING A PATH THROUGH WHICH GAS TO BE ANALYZED PASSES INCLUDING AN ELECTRICAL FILTER REQUIRING A PREDETERMINED TIME AFTER POWER IS APPLIED THERETO TO BECOME ACTIVE, ANALYZING APPARATUS, POWER-OPERATED MECHANISM TO DRAW GAS TO BE ANALYZED THROUGH SAID FILTER AND APPARATUS AND A NORMALLY CLOSED VALVE LOCATED BETWEEN SAID FILTER AND APPARATUS, MEANS TO APPLY POWER TO SAID FILTER, TO SAID MECHANISM TO START ITS OPERATION AND TO SAID VALVE TO OPEN IT, AND SLOW-CLOSING FAST-OPENING, POWER-CONTROLLING MEANS TO DELAY THE APPLICATION OF POWER TO SAID MECHANISM TIME HAS VALVE UNTIL AFTER SAID PREDETERMINED TIME HAS ELAPSED WHEREBY UNFILTERED GAS CONNOT PASS TO SAID APPARATUS.
References Cited (Backward Citations)
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US1773963A
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US2241555A
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US2307602A
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US2341727A
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US2484202A
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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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |