US2805732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filtering solids from gases
Assignee: Phillips Petroleum Co
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Filing: 1955-04-18
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Granted: 1957-09-10
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Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Martinez Jesus Salinas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:24
CPC Classifications
B; B01; B01D; B01D50/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
BAG FILTERING APPARATUS WHICH COMPRISES: A PLURALITY OF FILTERING COMPARTMENTS ARRANGED IN ADJACENT PARALLEL ROWS; A COMMON HOPPER FOR EACH ROW OF COMPARTMENTS, EACH SAID HOPPER BEING ATTACHED TO THE LOWER END OF AND EXTENDING LONGITUDINALLY IN A HORIZONTAL DIRECTION BENEATH EACH SAID ROW OF COMPARTMENTS; MEANS FORMING A LONGITUDINALLY EXTENDING INLET PLENUM CHAMBER POSITIONED ADJOINING AND BETWEEN THE INNER ADJACENT LONGITUDINAL WALLS OF SAID HOPPERS; AND SCREW CONVEYOR MEANS ATTACHED TO THE BOTTOM OF EACH OF SAID HOPPERS.
Claim 2
Dependent Claim
79 words
BAG FILTERING APPARATUS WHICH COMPRISES: A PLURALITY OF FILTERING COMPARTMENTS ARRANGED IN ADJACENT PARALLEL ROWS; A COMMON HOPPER FOR EACH ROW OF COMPARTMENTS, EACH SAID HOPPER BEING ATTACHED TO THE LOWER END OF AND EXTENDING LONGITUDINALLY IN A HORIZONTAL DIRECTION BENEATH EACH SAID ROW OF COMPARTMENTS; MEANS FORMING A LONGITUDINALLY EXTENDING INLET PLENUM CHAMBER POSITIONED ADJOINING AND BETWEEN THE INNER ADJACENT LONGITUDINAL WALLS OF SAID HOPPERS; AND SCREW CONVEYOR MEANS ATTACHED TO THE BOTTOM OF EACH OF SAID HOPPERS.
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) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |