Patent US3136720A successfully refreshed from Google Patents.
US3136720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic filter
Assignee: Max Baermann GmbH
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Filing: 1960-11-08
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Granted: 1964-06-09
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Expires: 1980-11-08
Abstract
No abstract record available.
Inventors
- 👤 Baermann Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:41
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/06; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/10; H01F1/11; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
AN APPARATUS FOR FILTERING FERRO-MAGNETIC PARTICLES AND THE LIKE FROM A FLUID COMPRISING SUPERIMPOSED, IMPERVIOUS LAYERS OF FLEXIBLE MATERIAL, SAID LAYER MATERIAL COMPRISING A FLEXIBLE BINDER AND PARTICLES OF PRMANENT MAGNETIC MATERIAL HAVING A LOW PERMEABILITY AND A HIGH COERCIVITY IN THE ORDER OF THE PERMEABILITY AND COERCIVITY OF ION-BARIUM OXIDE DISPERSED WITHIN AND BONDED BY SAID BINDER, EACH OF SAID LAYERS HAVING A PLURALITY OF RAISED RIB-LIKE PORTIONS SUBSTANTIALLY INTEGRAL WITH SAID LAYER AND EXTENDING OUTWARDLY FROM AT LEAST ONE SURFACE OF SAID LAYER, A PLURALITY OF PASSAGEWAYS DEFINED BETWEEN SAID RIB-LIKE PORTIONS FOR DIRECTING SAID FLUID ALONG THE SURFACE OF SAID LAYER BETWEEN SAID RIB-LIKE PORTIONS AND IN SUBSTANTIALLY PARALLEL FLOW PATHS, AND SAID SURFACE OF SAID LAYER BETWEEN SAID RIB-LIKE PORTIONS BEING SUBSTANTIALLY FLAT AND CONTINUOUS AND HAVING AT LEAST ONE PAIR OF NORTH AND SOUTH MAGNETIC POLES MAGNETIZED TO PRODUCE FLUX LINES THAT EXTEND OUTWARDLY FROM SAID SURFACE BETWEEN SAID RIB-LIKE PORTIONS TO FORM A HIGH DENSITY FLUX FIELD IN SAID PASSAGEWAYS WITH THE FLOW OF SAID FLUID IN SAID PASSAGEWAYS BEING SUBSTANTIALLY PERPENDICULAR TO THE AXES OF MANETIZATION OF SAID MAGNETIC POLES.
Claim 2
Independent Claim
187 words
AN APPARATUS FOR FILTERING FERRO-MAGNETIC PARTICLES AND THE LIKE FROM A FLUID COMPRISING SUPERIMPOSED, IMPERVIOUS LAYERS OF FLEXIBLE MATERIAL, SAID LAYER MATERIAL COMPRISING A FLEXIBLE BINDER AND PARTICLES OF PRMANENT MAGNETIC MATERIAL HAVING A LOW PERMEABILITY AND A HIGH COERCIVITY IN THE ORDER OF THE PERMEABILITY AND COERCIVITY OF ION-BARIUM OXIDE DISPERSED WITHIN AND BONDED BY SAID BINDER, EACH OF SAID LAYERS HAVING A PLURALITY OF RAISED RIB-LIKE PORTIONS SUBSTANTIALLY INTEGRAL WITH SAID LAYER AND EXTENDING OUTWARDLY FROM AT LEAST ONE SURFACE OF SAID LAYER, A PLURALITY OF PASSAGEWAYS DEFINED BETWEEN SAID RIB-LIKE PORTIONS FOR DIRECTING SAID FLUID ALONG THE SURFACE OF SAID LAYER BETWEEN SAID RIB-LIKE PORTIONS AND IN SUBSTANTIALLY PARALLEL FLOW PATHS, AND SAID SURFACE OF SAID LAYER BETWEEN SAID RIB-LIKE PORTIONS BEING SUBSTANTIALLY FLAT AND CONTINUOUS AND HAVING AT LEAST ONE PAIR OF NORTH AND SOUTH MAGNETIC POLES MAGNETIZED TO PRODUCE FLUX LINES THAT EXTEND OUTWARDLY FROM SAID SURFACE BETWEEN SAID RIB-LIKE PORTIONS TO FORM A HIGH DENSITY FLUX FIELD IN SAID PASSAGEWAYS WITH THE FLOW OF SAID FLUID IN SAID PASSAGEWAYS BEING SUBSTANTIALLY PERPENDICULAR TO THE AXES OF MANETIZATION OF SAID MAGNETIC POLES.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |