US3075333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust separator apparatus
Assignee: American Air Filter Co Inc
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Filing: 1960-08-11
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Granted: 1963-01-29
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Expires: 1980-08-11
Abstract
No abstract record available.
Inventors
- 👤 Alan E Revell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:13
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/18; Y; Y10; Y10S; Y10S55/00; Y10S55/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
GAS CLEANER APPARATUS COMPRISING A PLURALITY OF ENDLESS FILTER BELTS ARRANGED TO MOVE IN SPACED UPSTREAM AND DOWNSTREAM FLIGHT PATHS ACROSS A GAS FLOW STREAM SO THAT SUCCESSIVE PORTIONS OF EACH OF SAID FILTER BELTS ENTER SAID GAS FLOW STREAM AT AN ENTRANCE POINT, PASS ACROSS IT AND THEN LEAVE IT AT AN EXIT POINT, SAID FILTER BELTS BEING POSITIONED WITH RESPECT TO EACH OTHER TO PRESENT A PLEAT TYPE CONSTRUCTION ALONG SAID UPSTREAM FLIGHT PATHS, AND MEANS FOR MOVING SAID FILTER BELTS INTO AND OUT OF SUCH GAS FLOW STREAM.
Claim 2
Dependent Claim
91 words
GAS CLEANER APPARATUS COMPRISING A PLURALITY OF ENDLESS FILTER BELTS ARRANGED TO MOVE IN SPACED UPSTREAM AND DOWNSTREAM FLIGHT PATHS ACROSS A GAS FLOW STREAM SO THAT SUCCESSIVE PORTIONS OF EACH OF SAID FILTER BELTS ENTER SAID GAS FLOW STREAM AT AN ENTRANCE POINT, PASS ACROSS IT AND THEN LEAVE IT AT AN EXIT POINT, SAID FILTER BELTS BEING POSITIONED WITH RESPECT TO EACH OTHER TO PRESENT A PLEAT TYPE CONSTRUCTION ALONG SAID UPSTREAM FLIGHT PATHS, AND MEANS FOR MOVING SAID FILTER BELTS INTO AND OUT OF SUCH GAS FLOW STREAM.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |