US3254768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering apparatus
Assignee: Individual
•
Filing: 1963-09-09
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Granted: 1966-06-07
•
Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Shimizu Jinichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:47
CPC Classifications
B; B01; B01D; B01D37/00; B01D37/02; B01D33/00; B01D33/04; B01D33/042; B01D33/044; B01D33/048; B01D33/06; B01D33/073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A FILTERING APPARATUS COMPRISING A RESERVOIR CHARGED WITH LIQUID TO BE FILTERED, AN INNER NET MEMBER MOVABLY DISPOSED IN SAID RESERVOIR, AN OUTER NET MEMBER CARRIED AROUND SAID INNER NET MEMBER, A MEANS FOR SUPPLYING A FILTERING MEATERIOAL ONTO SAID OUTER NET MEMBER TO FORM A LAYER OF SAID FILTERING MATERIAL, AND A MEANS FOR PLACING SAID OUTER NET MEMBER OVER SAID INNER NET MEMBER, SAID MEANS FOR PLACING SAID OUTER NET MEMBER OVER SAID INNER NET MEMBER INCLUDING A PERFORATED MAIN CYLINDER CARRYING SAID INNER NET MEMBER, AN INLET ROLLER GUIDING SAID OUTER NET MEMBER TO SAID INNER NET MEMBER, AND AN OUTER ROLLER GUIDING SAID OUTER NET MEMBER AWAY FROM SAID INNER NET MEMBER, SAID INNER NET MEMBER BEING IN THE FORM OF AN ENDLES BELT NET AND CARRIED BY SIAD PERFORATED MAIN CYLINDER AROUND ITS CYLINDRICAL SURFACE AND OVER A GUIDE ROLLER DISPOSED APART FROM SAID MAIN CYLINDER, SAID OUTER NET MEMBER AND SAID INNER NET MEMBER HOLDING THEREBTWEEN SAID LAYER OF SAID FILTERING MATERIAL WHILE MOVING THROUGH SAID LIQUID IN SAID RESERVOIR, WHEREBY SOLIDS PRESENT IN THE LIQUID IN SAID RESERVOIR ARE MADE TO ADHERE ONTO THE OUTER SURFACE OF SAID OUTER NET MEMBER.
Claim 2
Dependent Claim
198 words
A FILTERING APPARATUS COMPRISING A RESERVOIR CHARGED WITH LIQUID TO BE FILTERED, AN INNER NET MEMBER MOVABLY DISPOSED IN SAID RESERVOIR, AN OUTER NET MEMBER CARRIED AROUND SAID INNER NET MEMBER, A MEANS FOR SUPPLYING A FILTERING MEATERIOAL ONTO SAID OUTER NET MEMBER TO FORM A LAYER OF SAID FILTERING MATERIAL, AND A MEANS FOR PLACING SAID OUTER NET MEMBER OVER SAID INNER NET MEMBER, SAID MEANS FOR PLACING SAID OUTER NET MEMBER OVER SAID INNER NET MEMBER INCLUDING A PERFORATED MAIN CYLINDER CARRYING SAID INNER NET MEMBER, AN INLET ROLLER GUIDING SAID OUTER NET MEMBER TO SAID INNER NET MEMBER, AND AN OUTER ROLLER GUIDING SAID OUTER NET MEMBER AWAY FROM SAID INNER NET MEMBER, SAID INNER NET MEMBER BEING IN THE FORM OF AN ENDLES BELT NET AND CARRIED BY SIAD PERFORATED MAIN CYLINDER AROUND ITS CYLINDRICAL SURFACE AND OVER A GUIDE ROLLER DISPOSED APART FROM SAID MAIN CYLINDER, SAID OUTER NET MEMBER AND SAID INNER NET MEMBER HOLDING THEREBTWEEN SAID LAYER OF SAID FILTERING MATERIAL WHILE MOVING THROUGH SAID LIQUID IN SAID RESERVOIR, WHEREBY SOLIDS PRESENT IN THE LIQUID IN SAID RESERVOIR ARE MADE TO ADHERE ONTO THE OUTER SURFACE OF SAID OUTER NET MEMBER.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |