US3148962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gradated bed flash arrester
Assignee: Union Carbide Corp
•
Filing: 1961-03-20
•
Granted: 1964-09-15
•
Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Hartley C Dellinger
- 👤 Jr Bruce L Fayerweather
- 👤 Martin L Kasbohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
A; A62; A62C; A62C4/00; A62C4/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A DRY TYPE FLASH ARRESTER FOR COMBUSTIBLE GAS SERVICE COMPRISING A CONTAINER HAVING AN INLET AND AN OUTLET FOR COMBUSTIBLE GAS, AND A PACKING OF GRANULAR HEAT RESISTANT MATERIAL ALL OF WHICH PASSES THROUGH A NO. 4 SIZE SCREEN OF U.S. STANDARD FINE SIEVE SERIES, SAID PACKING COMPRISES AT LEAST THREE DISCRETE CONTACTING LAYERS OF RESPECTIVE PARTICLE SIZES, SAID LAYERS BEING DISPOSED TRANSVERSELY TO THE PASSAGE OF SAID GAS THERETHROUGH, THE PARTICLES IN EACH LAYER BEING APPROXIMATELY UNIFORM IN SIZE, BUT DIFFERENT IN SIZE FROM THOSE OF ADJACENT LAYERS, THE PARTICLE SIZE DIFFERENCE BETWEEN ADJACENT LAYERS BEING SUFFICIENTLY LIMITED NOT TO EXCEED A DIAMETER RATIO OF 1.7 TO 1 TO PREVENT INTERMIXING, THE LAYERS BEING ARRANGED IN DECREASING ORDER OF PARTICLE SIZE FROM THE END OF THE ARRESTER NEAREST THE SOURCE OF THE FLASH.
Claim 2
Dependent Claim
135 words
IN A DRY TYPE FLASH ARRESTER FOR COMBUSTIBLE GAS SERVICE COMPRISING A CONTAINER HAVING AN INLET AND AN OUTLET FOR COMBUSTIBLE GAS, AND A PACKING OF GRANULAR HEAT RESISTANT MATERIAL ALL OF WHICH PASSES THROUGH A NO. 4 SIZE SCREEN OF U.S. STANDARD FINE SIEVE SERIES, SAID PACKING COMPRISES AT LEAST THREE DISCRETE CONTACTING LAYERS OF RESPECTIVE PARTICLE SIZES, SAID LAYERS BEING DISPOSED TRANSVERSELY TO THE PASSAGE OF SAID GAS THERETHROUGH, THE PARTICLES IN EACH LAYER BEING APPROXIMATELY UNIFORM IN SIZE, BUT DIFFERENT IN SIZE FROM THOSE OF ADJACENT LAYERS, THE PARTICLE SIZE DIFFERENCE BETWEEN ADJACENT LAYERS BEING SUFFICIENTLY LIMITED NOT TO EXCEED A DIAMETER RATIO OF 1.7 TO 1 TO PREVENT INTERMIXING, THE LAYERS BEING ARRANGED IN DECREASING ORDER OF PARTICLE SIZE FROM THE END OF THE ARRESTER NEAREST THE SOURCE OF THE FLASH.
References Cited (Backward Citations)
US1170055A
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US1629085A
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US1787698A
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US1907976A
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US2409278A
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US2808319A
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |