US3215277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Dorr Oliver Inc
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Filing: 1963-09-24
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Granted: 1965-11-02
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Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry V Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:04
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/073; B01D33/58; B01D33/60; B01D2201/00; B01D2201/28; B01D2201/282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
IN A CONTINUOUS FILTER HAVING A TRAVELLING FILTER MEANS AND A LIQUID DISTRIBUTING MEANS SPACED UPWARDLY FROM THE FILTER MEANS FOR APPLYING WASH LIQUID TO THE FILTER MEANS, THE IMPROVEMENT WHICH COMPRISES AN ELONGATE GENERALLY HORIZONTAL LIQUID DISTRIBUTING MEMBER HAVING A BODY PORTION PRESENTING AN INCLINED FACE AND HAVING AN UPWARDLY TURNED LOWER EDGE PORTION CONSTITUTING WITH SAID INCLINED FACE A POCKET, AND HAVING A HORIZONTAL ROW OF DISCHARGE OPENINGS ALONG THE LOWER END THEREOF AND CLOSELY SPACED RELATIVE TO ONE ANOTHER, A LAYER OF FLOW RETARDANT LIQUID DISPERSING MATERIAL PROVIDED ON SAID INCLINED FACE AND IN SAID POCKET AND HAVING A BOTTOM EDGE PORTION EXTENDING HORIZONTALLY ADJACENT TO SAID ROW OF OPENINGS, SAID LIQUID SUPPLY MEANS SPACED UPWARDLY FROM SAID INCLINED FACE AND FROM SAID LAYER OF MATERIAL, SAID SUPPLY MEANS COMPRISING HORIZONTAL CONDUIT MEANS EXTENDING SUBSTANTIALLY THROUGHOUT THE LENGTH OF SAID LIQUID DISTRIBUTING MEMBER AND HAVING DISCHARGE OPENINGS SPACED ALONG THE LENGTH THEREOF, WHEREBY LIQUID FROM SAID SUPPLY MEANS TRAVERSES AND LAYER OF LIQUID DISPERSING MATERIAL BORE REACHING SAID DISCHARGE OPENINGS, SAID LIQUID DISPERSING MATERIAL SERVING TO EVENLY DISTRIBUTE LIQUID FROM SAID SUPPLY MEANS TO SAID OPENINGS.
Claim 2
Dependent Claim
189 words
IN A CONTINUOUS FILTER HAVING A TRAVELLING FILTER MEANS AND A LIQUID DISTRIBUTING MEANS SPACED UPWARDLY FROM THE FILTER MEANS FOR APPLYING WASH LIQUID TO THE FILTER MEANS, THE IMPROVEMENT WHICH COMPRISES AN ELONGATE GENERALLY HORIZONTAL LIQUID DISTRIBUTING MEMBER HAVING A BODY PORTION PRESENTING AN INCLINED FACE AND HAVING AN UPWARDLY TURNED LOWER EDGE PORTION CONSTITUTING WITH SAID INCLINED FACE A POCKET, AND HAVING A HORIZONTAL ROW OF DISCHARGE OPENINGS ALONG THE LOWER END THEREOF AND CLOSELY SPACED RELATIVE TO ONE ANOTHER, A LAYER OF FLOW RETARDANT LIQUID DISPERSING MATERIAL PROVIDED ON SAID INCLINED FACE AND IN SAID POCKET AND HAVING A BOTTOM EDGE PORTION EXTENDING HORIZONTALLY ADJACENT TO SAID ROW OF OPENINGS, SAID LIQUID SUPPLY MEANS SPACED UPWARDLY FROM SAID INCLINED FACE AND FROM SAID LAYER OF MATERIAL, SAID SUPPLY MEANS COMPRISING HORIZONTAL CONDUIT MEANS EXTENDING SUBSTANTIALLY THROUGHOUT THE LENGTH OF SAID LIQUID DISTRIBUTING MEMBER AND HAVING DISCHARGE OPENINGS SPACED ALONG THE LENGTH THEREOF, WHEREBY LIQUID FROM SAID SUPPLY MEANS TRAVERSES AND LAYER OF LIQUID DISPERSING MATERIAL BORE REACHING SAID DISCHARGE OPENINGS, SAID LIQUID DISPERSING MATERIAL SERVING TO EVENLY DISTRIBUTE LIQUID FROM SAID SUPPLY MEANS TO SAID OPENINGS.
References Cited (Backward Citations)
US447942A
Cited
US1280439A
Cited
US2115211A
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US2484304A
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US2943378A
Cited
US3083952A
Cited
US2798768A
Cited
US3075750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |