US3297370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter cleaner mechanism for pneumatic material conveying system
Assignee: Vac-U-Max
•
Filing: 1964-12-31
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Granted: 1967-01-10
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Moriarity Edward John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:13
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/66; B01D46/74; B01D46/76; B01D46/42; B01D46/4272; B65; B65G; B65G53/00; B65G53/34; B65G53/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
FILTERING APPARATUS COMPRISING A FLEXIBLE FILTER BAG FOR FINE PARTICLES OF MATERIAL CONVEYED PNEUMATICALLY, RADIALLY EXTENDING FLEXIBLE STRAPS HAVING THEIR OUTER ENDS SECURED TO SAID BAG AND HAVING THEIR INNER ENDS SECURED TO EACH OTHER SUBSTANTIALLY AT THE CENTER OF SAID BAG, AND A MEMBER SECURED TO SAID STRAPS AT THE INNER ENDS THEREOF FROM WITHIN A BEARING BORE FOR THE RECEPTION OF AN ELEMENT DRIVEN TO MOVE SAID STRAPS TO EFFECT SHAKING OF SAID BAG TO LOOSEN AND REMOVE MATERIAL ADHERED TO SAID BAG.
Claim 2
Dependent Claim
85 words
FILTERING APPARATUS COMPRISING A FLEXIBLE FILTER BAG FOR FINE PARTICLES OF MATERIAL CONVEYED PNEUMATICALLY, RADIALLY EXTENDING FLEXIBLE STRAPS HAVING THEIR OUTER ENDS SECURED TO SAID BAG AND HAVING THEIR INNER ENDS SECURED TO EACH OTHER SUBSTANTIALLY AT THE CENTER OF SAID BAG, AND A MEMBER SECURED TO SAID STRAPS AT THE INNER ENDS THEREOF FROM WITHIN A BEARING BORE FOR THE RECEPTION OF AN ELEMENT DRIVEN TO MOVE SAID STRAPS TO EFFECT SHAKING OF SAID BAG TO LOOSEN AND REMOVE MATERIAL ADHERED TO SAID BAG.
References Cited (Backward Citations)
US1153751A
Cited
US2667233A
Cited
DE1037237B
Cited
US2946626A
Cited
US3097939A
Cited
US3169038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |