US3301476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for signaling a predetermined level in the sludge chamber of a centrifugaldrum
Assignee: GEA Mechanical Equipment GmbH
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Filing: 1964-01-27
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Granted: 1967-01-31
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Heinz Hemfort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:27
CPC Classifications
B; B04; B04B; B04B15/00; B04B1/00; B04B1/10; B04B1/14; B04B1/16; B04B1/18; B04B11/00; B04B11/04; B04B11/043; G; G01; G01F; G01F23/00; G01F23/14; G01F23/18; G01F23/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
CENTRIFUGAL SEPARATOR COMPRISING: (A) A DRUM FOR RECEIVING MATERIAL TO BE CENTRIFUGED BY THE SEPARATOR INCLUDING A SLUDGE COLLECTION CHAMBER, AND BEING MOUNTED FOR ROTATION ABOUT AN AXIS FOR THE CENTRIFUGING, (B) A RADIALLY EXTENDING PASSAGEWAY HAVING AN INLET END AND AN OUTLET END, THE OUTLET COMMUNICATING WITH THE DRUM SLUDGE COLLECTION CHAMBER, THE INLET BEING CLOSER TO THE DRUM AXIS THAN THE OUTLET, (C) MEANS COMMUNICATING WITH SAID INLET END FOR SUPPLYING FLUID TO THE INLET FOR FLOW THROUGH SAID RADIALLY EXTENDING PASSAGEWAY TO AND INTO THE SLUDGE COLLECTION CHAMBER, (D) MEANS FOR SENSING INCREASE IN PRESSURE OF FLUID IN SAID PASSAGEWAY IN CONSEQUENCE OF COLLECTION OF SLUDGE AT THE PASSAGEWAY OUTLET END IMPEDING FLUID FLOW THROUGH THE PASSAGEWAY, SAID MEANS FOR SENSING
Claim 2
Dependent Claim
124 words
CENTRIFUGAL SEPARATOR COMPRISING: (A) A DRUM FOR RECEIVING MATERIAL TO BE CENTRIFUGED BY THE SEPARATOR INCLUDING A SLUDGE COLLECTION CHAMBER, AND BEING MOUNTED FOR ROTATION ABOUT AN AXIS FOR THE CENTRIFUGING, (B) A RADIALLY EXTENDING PASSAGEWAY HAVING AN INLET END AND AN OUTLET END, THE OUTLET COMMUNICATING WITH THE DRUM SLUDGE COLLECTION CHAMBER, THE INLET BEING CLOSER TO THE DRUM AXIS THAN THE OUTLET, (C) MEANS COMMUNICATING WITH SAID INLET END FOR SUPPLYING FLUID TO THE INLET FOR FLOW THROUGH SAID RADIALLY EXTENDING PASSAGEWAY TO AND INTO THE SLUDGE COLLECTION CHAMBER, (D) MEANS FOR SENSING INCREASE IN PRESSURE OF FLUID IN SAID PASSAGEWAY IN CONSEQUENCE OF COLLECTION OF SLUDGE AT THE PASSAGEWAY OUTLET END IMPEDING FLUID FLOW THROUGH THE PASSAGEWAY, SAID MEANS FOR SENSING
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |