Patent US3225933A successfully refreshed from Google Patents.
US3225933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting for cluster of filter tubes
Assignee: Individual
•
Filing: 1961-07-25
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Granted: 1965-12-28
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Berline Jacques Roll Alexandre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/52; B01D29/62; B01D29/66; B01D29/661; B01D29/70; B01D29/72; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0446; B01D2201/08; B01D2201/085; B01D2201/088; B01D2201/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN A FILTER COMPRISING A CLUSTER OF VERTICAL FILTER TUBES CONSISTING EACH OF A PERFORATED TUBE SURROUNDED BY A FILTERING SHEATH AND OUTFLARED AT ITS UPPER END AND THROUGH WHICH THE PRODUCT TO BE FILTERED IS CAUSED TO FLOW FROM THE EXTERIOR TO THE INTERIOR BEFORE ESCAPING THROUGH THE TOP PORTION OF THE TUBE, SAID FILTER TUBES BEING ADAPTED TO BE CLEANED BY CAUSING THE FORCED FILTRATE TO FLOW IN THE OPPOSITE DIRECTION, A HORIZONTAL PLATE SOLID WITH THE UPPER PORTION OF THE FILTER AND APERTURED TO PERMIT THE PASSAGE WITH PLAY OF THE UPPER END OF EACH TUBE THERETHROUGH, A CIRCULAR GROOVE FORMED IN THE UPPER EDGE OF EACH APERTURE, A RESILIENT GASKET FITTING IN EACH GROOVE AND ADAPTED ELASTICALLY TO ENGAGE THE OUTFLARED UPPER EDGE OF EACH TUBE, A FLANGE REMOVABLY MOUNTED WITH RESPECT TO EACH TUBE FOR SECURING THE UPPER END OF EACH TUBE ON THE RELEVANT GASKET, WASHERS DISPOSED ABOVE SAID SUPPORTING PLATE AND ENGAGING SAID FLANGES WITH THEIR EDGES, AND MEANS FOR ADJUSTABLY CLAMPING SAID WASHERS ON SAID SUPPORTING PLATE.
Claim 2
Dependent Claim
175 words
IN A FILTER COMPRISING A CLUSTER OF VERTICAL FILTER TUBES CONSISTING EACH OF A PERFORATED TUBE SURROUNDED BY A FILTERING SHEATH AND OUTFLARED AT ITS UPPER END AND THROUGH WHICH THE PRODUCT TO BE FILTERED IS CAUSED TO FLOW FROM THE EXTERIOR TO THE INTERIOR BEFORE ESCAPING THROUGH THE TOP PORTION OF THE TUBE, SAID FILTER TUBES BEING ADAPTED TO BE CLEANED BY CAUSING THE FORCED FILTRATE TO FLOW IN THE OPPOSITE DIRECTION, A HORIZONTAL PLATE SOLID WITH THE UPPER PORTION OF THE FILTER AND APERTURED TO PERMIT THE PASSAGE WITH PLAY OF THE UPPER END OF EACH TUBE THERETHROUGH, A CIRCULAR GROOVE FORMED IN THE UPPER EDGE OF EACH APERTURE, A RESILIENT GASKET FITTING IN EACH GROOVE AND ADAPTED ELASTICALLY TO ENGAGE THE OUTFLARED UPPER EDGE OF EACH TUBE, A FLANGE REMOVABLY MOUNTED WITH RESPECT TO EACH TUBE FOR SECURING THE UPPER END OF EACH TUBE ON THE RELEVANT GASKET, WASHERS DISPOSED ABOVE SAID SUPPORTING PLATE AND ENGAGING SAID FLANGES WITH THEIR EDGES, AND MEANS FOR ADJUSTABLY CLAMPING SAID WASHERS ON SAID SUPPORTING PLATE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |