US3606567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transporting apparatus for solids-liquid mixtures
Assignee: Hidrostal SA
•
Filing: 1969-11-13
•
Granted: 1971-09-20
•
Expires: 1989-11-13
Abstract
Abstract AN APPARATUS WHICH UTILIZES A SUCTION PUMP DESIGNED TO PASS A SOLIDS-LIQUID MIXTURE WITH MINIMAL DAMAGE TO THE SOLIDS AND AN EXTENSIBLE TUBE TERMINATING IN A WEIGHTED STRAINER CAPABLE OF PASSING SOLIDS WHICH WILL PASS THE PUMP, THE DEPTH OF SUBMERGENCE BEING VARIABLE DEPENDING ON THE SUCTION PRESSURE PRODUCED BY THE PUMP WHEREBY ON ENCOUNTERING EXCESS SOLIDS CONTENT THE TUBE AND STRAINER RAISES AUTOMATICALLY TO A LESS DENSE REGION, AND ON REDUCTION IN SOLIDS CONTENT, EXTENDS AUTOMATICALLY TO A LOWER LEVEL.
Inventors
- 👤 Martin Stahle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:02
CPC Classifications
A; A01; A01K; A01K79/00; F; F04; F04D; F04D7/00; F04D7/02; F04D7/04; F04D9/00; F04D9/007; F04D9/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |