US3187487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black filter
Assignee: Phillips Petroleum Co
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Filing: 1961-12-26
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Granted: 1965-06-08
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Bruno F Loewen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:23
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A BAG FILTER SYSTEM FOR SEPARATING CARBON BLACK FROM GASES CONTAINING CARBON BLACK IN SUSPENSION COMPRISING, IN OPERABLE COMBINATION, AN ENCLOSURE HAVING A FLOOR, A PLURALITY OF WALLS AND A ROOF, A PLURALITY OF OPENINGS IN SAID FLOOR, A SEPARATE FILTER BAG HAVING AN OPEN END FITTING EACH OPENING AND EXTENDING UPWARD IN SAID ENCLOSURE WITH ITS UPPER END TERMINATING BELOW SAID ROOF, MEANS INTERMEDIATE THE TOP ENDS OF THE FILTER BAGS AND THE ROOF RETAINING SAID BAGS IN AN UPRIGHT POSITION, AT LEAST ONE OF SAID WALLS HAVING A GIRT MEMBER PROVIDED WITH A VERTICALLY DOWNWARD PROJECTION FROM ITS INNERMOST PORTION ATTACHED TO THE INNER SURFACE THEREOF, ARE UPRIGHT SPLASH PLATE POSITIONED PARALLEL TO SAID AT LEAST ONE OF SAID WALLS INTERMEDIATE SAID FILTER BAGS AND SAID VERTICALLY DOWNWARD PROJECTION OF SAID GIRL MEMBER OF PROTECTING SAID FILTER BAGS FROM SPLASHING, AQUEOUS LIQUID, RESULTING FROM CONDENSATION OF MOISTURE ON SAID GIRL MEMBER AND DRIPPING OF THE AQUEOUS LIQUID ONTO SAID FLOOR.
Claim 2
Dependent Claim
162 words
A BAG FILTER SYSTEM FOR SEPARATING CARBON BLACK FROM GASES CONTAINING CARBON BLACK IN SUSPENSION COMPRISING, IN OPERABLE COMBINATION, AN ENCLOSURE HAVING A FLOOR, A PLURALITY OF WALLS AND A ROOF, A PLURALITY OF OPENINGS IN SAID FLOOR, A SEPARATE FILTER BAG HAVING AN OPEN END FITTING EACH OPENING AND EXTENDING UPWARD IN SAID ENCLOSURE WITH ITS UPPER END TERMINATING BELOW SAID ROOF, MEANS INTERMEDIATE THE TOP ENDS OF THE FILTER BAGS AND THE ROOF RETAINING SAID BAGS IN AN UPRIGHT POSITION, AT LEAST ONE OF SAID WALLS HAVING A GIRT MEMBER PROVIDED WITH A VERTICALLY DOWNWARD PROJECTION FROM ITS INNERMOST PORTION ATTACHED TO THE INNER SURFACE THEREOF, ARE UPRIGHT SPLASH PLATE POSITIONED PARALLEL TO SAID AT LEAST ONE OF SAID WALLS INTERMEDIATE SAID FILTER BAGS AND SAID VERTICALLY DOWNWARD PROJECTION OF SAID GIRL MEMBER OF PROTECTING SAID FILTER BAGS FROM SPLASHING, AQUEOUS LIQUID, RESULTING FROM CONDENSATION OF MOISTURE ON SAID GIRL MEMBER AND DRIPPING OF THE AQUEOUS LIQUID ONTO SAID FLOOR.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |