US3325979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collector
Assignee: Fuller Co
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Filing: 1964-03-18
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Granted: 1967-06-20
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Expires: 1984-03-18
Abstract
No abstract record available.
Inventors
- 👤 Elbridge M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:08
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/0002; B01D46/0005; B01D46/66; B01D46/69; B01D46/70; B01D46/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A DUST COLLECTOR COMPRISING A CASING HAVING AN INLET AND AN OUTLET THEREIN AND A PARTITION, SAID PARTITION HAVING AT LEAST ONE APERTURE THEREIN, AT LEAST ONE SUBSTANTIALLY VERTICAL TUBULAR FILTER BAG HAVING ITS LOWER END SECURED ABOUT SAID APERTURE IN THE PARTITION, MEANS FOR SUPPLYING A DIRTY GAS TO THE SAID INLET, MEANS FOR REMOVING FILTERED GAS FROM THE OUTLET, MEANS FOR PERIODICALLY INTERRUPTING THE FLOW OF DIRTY GAS THROUGH THE INLET, AT LEAST ONE NOZZLE BELOW THE PARTITION AIMED SUBSTANTIALLY VERTICALLY THROUGH SAID APERTURE, MEANS FOR PROPELLING A VOLUME CHARGE OF GAS UNDER PRESSURE THROUGH THE NOZZLE TO PASS UPWARDLY THROUGH THE SAID APERTURE AND ALONG THE INTERIOR OF THE SAID FILTER BAG TOWARD THE UPPER END THEREOF, AND MEANS AT THE UPPER END OF THE BAG TO REDIRECT THE VOLUME CHARGE DOWNWARDLY ALONG THE BAG TO REMOVE DISLODGED DUST THEREWITH DOWNWARDLY THROUGH THE SAID APERTURE.
Claim 2
Dependent Claim
148 words
A DUST COLLECTOR COMPRISING A CASING HAVING AN INLET AND AN OUTLET THEREIN AND A PARTITION, SAID PARTITION HAVING AT LEAST ONE APERTURE THEREIN, AT LEAST ONE SUBSTANTIALLY VERTICAL TUBULAR FILTER BAG HAVING ITS LOWER END SECURED ABOUT SAID APERTURE IN THE PARTITION, MEANS FOR SUPPLYING A DIRTY GAS TO THE SAID INLET, MEANS FOR REMOVING FILTERED GAS FROM THE OUTLET, MEANS FOR PERIODICALLY INTERRUPTING THE FLOW OF DIRTY GAS THROUGH THE INLET, AT LEAST ONE NOZZLE BELOW THE PARTITION AIMED SUBSTANTIALLY VERTICALLY THROUGH SAID APERTURE, MEANS FOR PROPELLING A VOLUME CHARGE OF GAS UNDER PRESSURE THROUGH THE NOZZLE TO PASS UPWARDLY THROUGH THE SAID APERTURE AND ALONG THE INTERIOR OF THE SAID FILTER BAG TOWARD THE UPPER END THEREOF, AND MEANS AT THE UPPER END OF THE BAG TO REDIRECT THE VOLUME CHARGE DOWNWARDLY ALONG THE BAG TO REMOVE DISLODGED DUST THEREWITH DOWNWARDLY THROUGH THE SAID APERTURE.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |