US2604443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying system for sludge separators
Assignee: Individual
•
Filing: 1949-10-18
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Granted: 1952-07-22
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Expires: 1969-10-18
Abstract
No abstract record available.
Inventors
- 👤 Russell V Fipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:11
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/10; B01D21/12; B01D21/14; B01D21/24; B01D21/2433; B01D21/30; B01D21/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
IN A SLUDGE-TREATMENT PLANT OF THE CHARACTER DESCRIBED A SLUDGE-SEPARATING TANK, A VERTICAL ROTARY SHAFT MOUNTED IN SAID TANK, A DISCHARGED FUNNEL SECTION IN SAID TANK, A SWEEP ARM CARRIED BY SAID SHAFT AND ARRANGED TO SWEEP SLUDGE INTO SAID FUNNEL SECTION, A SPRAY HEAD IN SAID TANK ABOVE THE FUNNEL SECTION, CONDUIT MEANS CONNECTED TO SAID SPRAY HEAD, A NORMALLYCLOSED VALVE IN SAID CONDUIT MEANS, AN OPERATING LEVER CONNECTED TO SAID VALVE, AN ARM CARRIED BY SAID SHAFT, SAID ARM BEING IN VERTICAL ALIGNMENT WITH THE SWEEP ARM, MEANS BIASING SAID LEVER TOWARD VALVE-CLOSING POSITION, A BAR MEMBER PIVOTALLY SECURED TO SAID TANK, AND YIELDABLE LINK MEANS CONNECTING SAID BAR MEMBER TO SAID LEVER, SAID BAR MEMBER BEING ENGAGEABLE BY SAID ARM FOR RELATIVELY SHORT PERIODS DURING THE ROTATION OF SAID SHAFT.
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) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |