US3031285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash arrester for gas conduits
Assignee: Svenska AB Gasaccumulator
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Filing: 1958-10-01
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Granted: 1962-04-24
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Expires: 1978-10-01
Abstract
No abstract record available.
Inventors
- 👤 Hedberg Oscar Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:27
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/72; F23D14/82; A; A62; A62C; A62C4/00; A62C4/02; Y; Y10; Y10T; Y10T137/00; Y10T137/1624
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A FLASH ARRESTER FOR A GAS CONDUIT COMPRISING A CASING DEFINING THEREIN A CHAMBER HAVING SIDE WALLS IN WHICH IS DEFINED AN ANNULAR RECESS AND HAVING OPPOSED END FACES IN EACH OF WHICH IS DEFINED AN OPENING TO A PORT EXTENDING THROUGH SAID CASING, THROUGH WHICH PORT SAID CHAMBER COMMUNICATES WITH THE CONDUIT, A POROUS BODY DISPOSED IN SAID CHAMBER, SAID BODY BEING SLIDABLE ENDWISE IN SAID CHAMBER, A YIELDABLE FLANGE ATTACHED TO SAID POROUS BODY AND ENGAGED IN SAID ANNULAR RECESS TO RETAIN SAID POROUS BODY IN SAID CHAMBER SPACED AT A DISTANCE FROM BOTH OF SAID END WALLS, SAID FLANGE BEING YIELDABLE AT EXPLOSIVE ENDWISE PRESSURES TO PERMIT SAID BODY TO SLIDE IN SAID CHAMBER, AND CLOSURE MEMBERS ATTACHED TO SAID POROUS BODY OPPOSITE THE SAID OPENINGS IN THE OPPOSED END FACES, SAID CLOSURE MEMBERS ADAPTED ON ENDWISE MOVEMENT TO CLOSE SAID OPENINGS.
Claim 2
Dependent Claim
145 words
A FLASH ARRESTER FOR A GAS CONDUIT COMPRISING A CASING DEFINING THEREIN A CHAMBER HAVING SIDE WALLS IN WHICH IS DEFINED AN ANNULAR RECESS AND HAVING OPPOSED END FACES IN EACH OF WHICH IS DEFINED AN OPENING TO A PORT EXTENDING THROUGH SAID CASING, THROUGH WHICH PORT SAID CHAMBER COMMUNICATES WITH THE CONDUIT, A POROUS BODY DISPOSED IN SAID CHAMBER, SAID BODY BEING SLIDABLE ENDWISE IN SAID CHAMBER, A YIELDABLE FLANGE ATTACHED TO SAID POROUS BODY AND ENGAGED IN SAID ANNULAR RECESS TO RETAIN SAID POROUS BODY IN SAID CHAMBER SPACED AT A DISTANCE FROM BOTH OF SAID END WALLS, SAID FLANGE BEING YIELDABLE AT EXPLOSIVE ENDWISE PRESSURES TO PERMIT SAID BODY TO SLIDE IN SAID CHAMBER, AND CLOSURE MEMBERS ATTACHED TO SAID POROUS BODY OPPOSITE THE SAID OPENINGS IN THE OPPOSED END FACES, SAID CLOSURE MEMBERS ADAPTED ON ENDWISE MOVEMENT TO CLOSE SAID OPENINGS.
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |