← Back to Patent Explorer
US3187487A Expired / Lapsed US ⏱️ 0.0 years remaining

Carbon black filter

Assignee: Phillips Petroleum Co
•
Filing: 1961-12-26
•
Granted: 1965-06-08
•
Expires: 1981-12-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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)

US1194407A Cited
US1457303A Cited
US1509912A Cited
US2871978A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag