Patent US5617548A successfully refreshed from Google Patents.
Patent US3193097A successfully refreshed from Google Patents.
US3193097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for straining suspensions of solid particles
Assignee: Chr Wandel KG
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Filing: 1961-03-13
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Granted: 1965-07-06
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Betz Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:05
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/20; B01D33/00; B01D33/01; B01D33/03; B01D33/0307; B01D33/0315; B01D33/06; B01D33/067; B01D33/073; D; D21; D21D; D21D5/00; D21D5/02; D21D5/06; B01D2201/00; B01D2201/34; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
AN APPARATUS FOR STRAINING SUSPENSIONS OF SOLID PARTICLES, COMPRISING A CONTAINER HAVING SIDE WALLS AND A BOTTOM AND AN INLET FOR THE UNSTRAINED SUSPENSION AND A WASTE OUTLET FOR THE UNSTRAINABLE SUSPENSION, A ROTARY DRUM STRAINER ROTATABLY MOUNTED WITHIN SAID CONTAINER, EACH OF SAID SIDE WALLS OF SAID CONTAINER HAVING AN OPENING, A PAIR OF HOLLOW SHAFTS SECURED TO THE OPPOSITE SIDES OF SAID STRAINER AND PROJECTING LATERALLY THEREFROM AND THROUGH SAID OPENINGS, THE INSIDE OF SAID SHAFTS COMMUNICATING WITH THE INSIDE OF SAID STRAINER, ONE OF SAID SHAFTS HAVING AN OPEN OUTER END SERVING AS AN OUTLET FOR THE STRAINED SUSPENSION, ANNULAR PNEUMATIC TUBE MEANS DISPOSED IN EACH OF SAID OPENINGS, EACH OF SAID PNEUMATIC MEANS SURROUNDING ONE OF SAID SHAFTS AND RESILIENTLY SUPPORTING ONE OF SAID SHAFTS, MEANS SECURED TO EACH OF SAID SIDE WALLS ADJACENT AND OPENINGS AND SECRED TO SAID PNEUMATIC MEANS FOR SUPPORTING SAID PNEUMATIC MEANS IN SAID OPENINGS, EACH OF SAID OPENING CONTAINING A BEARING MEANS INTERMEDIATE ITS RESPECTIVE PNEUMATIC MEANS AND SHAFT FOR ROTATABLY SUPPORTING SAID SHAFTS AND STRAINER, MEANS ASSOCIATED WITH ONE OF SAID SHAFTS FOR VIBRATING SAID STRAINER AND MEANS FOR ROTATING SAID DRUM STRAINER.
Claim 2
Independent Claim
194 words
AN APPARATUS FOR STRAINING SUSPENSIONS OF SOLID PARTICLES, COMPRISING A CONTAINER HAVING SIDE WALLS AND A BOTTOM AND AN INLET FOR THE UNSTRAINED SUSPENSION AND A WASTE OUTLET FOR THE UNSTRAINABLE SUSPENSION, A ROTARY DRUM STRAINER ROTATABLY MOUNTED WITHIN SAID CONTAINER, EACH OF SAID SIDE WALLS OF SAID CONTAINER HAVING AN OPENING, A PAIR OF HOLLOW SHAFTS SECURED TO THE OPPOSITE SIDES OF SAID STRAINER AND PROJECTING LATERALLY THEREFROM AND THROUGH SAID OPENINGS, THE INSIDE OF SAID SHAFTS COMMUNICATING WITH THE INSIDE OF SAID STRAINER, ONE OF SAID SHAFTS HAVING AN OPEN OUTER END SERVING AS AN OUTLET FOR THE STRAINED SUSPENSION, ANNULAR PNEUMATIC TUBE MEANS DISPOSED IN EACH OF SAID OPENINGS, EACH OF SAID PNEUMATIC MEANS SURROUNDING ONE OF SAID SHAFTS AND RESILIENTLY SUPPORTING ONE OF SAID SHAFTS, MEANS SECURED TO EACH OF SAID SIDE WALLS ADJACENT AND OPENINGS AND SECRED TO SAID PNEUMATIC MEANS FOR SUPPORTING SAID PNEUMATIC MEANS IN SAID OPENINGS, EACH OF SAID OPENING CONTAINING A BEARING MEANS INTERMEDIATE ITS RESPECTIVE PNEUMATIC MEANS AND SHAFT FOR ROTATABLY SUPPORTING SAID SHAFTS AND STRAINER, MEANS ASSOCIATED WITH ONE OF SAID SHAFTS FOR VIBRATING SAID STRAINER AND MEANS FOR ROTATING SAID DRUM STRAINER.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |