Patent US2732944A successfully refreshed from Google Patents.
US2732944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sludge removing means
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:36
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/24; B01D21/245; B01D21/2466
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
SLUDGE REMOVING MEANS FOR A SEWAGE OR OTHER LIQUID TREATING CHAMBER HAVING SLUDGE ACCUMULATING MEANS IN ITS BOTTOM INCLUDING, MEANS DISPOSED IN THE SLUDGE ACCUMULATING MEANS FOR DIRECTING GASEOUS FLUID UNDER PRESSURE AGAINST THE ACCUMULATED SLUDGE TO AGITATE THE SAME, MEANS OVERLYING THE SLUDGE ACCUMULATING MEANS AND PRESSURE FLUID DIRECTING MEANS TO CONFINE THE AGITATED SLUDGE AGAINST RISING IN THE CHAMBER, THE CONFINING MEANS HAVING AN INLET AND AN OUTLET, AND MEANS SUPPLYING GASEOUS FLUID UNDER PRESSURE TO THE INLET TO CREATE A CURRENT IN SAID CONFINING MEANS FROM SAID INLET TO THE OUTLET FOR PICKING UP THE AGITATED AND CONFINED SLUDGE.
Claim 2
Dependent Claim
102 words
SLUDGE REMOVING MEANS FOR A SEWAGE OR OTHER LIQUID TREATING CHAMBER HAVING SLUDGE ACCUMULATING MEANS IN ITS BOTTOM INCLUDING, MEANS DISPOSED IN THE SLUDGE ACCUMULATING MEANS FOR DIRECTING GASEOUS FLUID UNDER PRESSURE AGAINST THE ACCUMULATED SLUDGE TO AGITATE THE SAME, MEANS OVERLYING THE SLUDGE ACCUMULATING MEANS AND PRESSURE FLUID DIRECTING MEANS TO CONFINE THE AGITATED SLUDGE AGAINST RISING IN THE CHAMBER, THE CONFINING MEANS HAVING AN INLET AND AN OUTLET, AND MEANS SUPPLYING GASEOUS FLUID UNDER PRESSURE TO THE INLET TO CREATE A CURRENT IN SAID CONFINING MEANS FROM SAID INLET TO THE OUTLET FOR PICKING UP THE AGITATED AND CONFINED SLUDGE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |