Patent US3298597A successfully refreshed from Google Patents.
US3232672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting solid aggregate in liquid stream
Assignee: Individual
•
Filing: 1964-04-23
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Granted: 1966-02-01
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Expires: 1984-04-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Percy S Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:13
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN THE FEEDING OF SOLID PARTICLES INTO A CONFINED HIGH VELOCITY STREAM OF LIQUID WHICH HOISTS AND TRANSPORTS THE AGGREGATE TO A HIGHER LEVEL WHEREIN THE PARTICLES ARE FIRST PLACED WITH LIQUID IN A PRE-LOADING CHAMBER AT ATMOSPHERIC PRESSURE, THEN THE PRESSURE IN SAID CHAMBER IS RAISED TO THE STATIC PRESSURE EXISTING AT THE LEVEL IN THE HOISTING STREAM AFTER WHICH A PASSAGEWAY IS OPENED FROM THE PRE-LOADING CHAMBER INTO A LOADING CHAMBER THROUGH WHICH THE SOLIDS MOVE BY GRAVITY, THE LOADING CHAMBER BEING ALWAYS IN COMMUNICATION WITH THE HOISTING STREAM SO THAT IT DIRECTS THE PARTICLES THEREIN LATERALLY INTO THE HIGH VELOCITY STREAM, THAT STEP WHICH COMPRISES: DIRECTING A STREAM OF LIQUID FROM THE LOADING CHAMBER TO THE PRE-LOADING CHAMBER OVER A PATH SEPARATE FROM SAID PASSAGEWAY WHILE THE PARTICLES ARE MOVING THROUGH THE PASSAGEWAY THEREBY TO SUPPLY REPLACEMENT LIQUID IN THE PRE-LOADING CHAMBER TO FILL THE SPACE VACATED BY THE SOLID PARTICLES.
Claim 2
Dependent Claim
154 words
IN THE FEEDING OF SOLID PARTICLES INTO A CONFINED HIGH VELOCITY STREAM OF LIQUID WHICH HOISTS AND TRANSPORTS THE AGGREGATE TO A HIGHER LEVEL WHEREIN THE PARTICLES ARE FIRST PLACED WITH LIQUID IN A PRE-LOADING CHAMBER AT ATMOSPHERIC PRESSURE, THEN THE PRESSURE IN SAID CHAMBER IS RAISED TO THE STATIC PRESSURE EXISTING AT THE LEVEL IN THE HOISTING STREAM AFTER WHICH A PASSAGEWAY IS OPENED FROM THE PRE-LOADING CHAMBER INTO A LOADING CHAMBER THROUGH WHICH THE SOLIDS MOVE BY GRAVITY, THE LOADING CHAMBER BEING ALWAYS IN COMMUNICATION WITH THE HOISTING STREAM SO THAT IT DIRECTS THE PARTICLES THEREIN LATERALLY INTO THE HIGH VELOCITY STREAM, THAT STEP WHICH COMPRISES: DIRECTING A STREAM OF LIQUID FROM THE LOADING CHAMBER TO THE PRE-LOADING CHAMBER OVER A PATH SEPARATE FROM SAID PASSAGEWAY WHILE THE PARTICLES ARE MOVING THROUGH THE PASSAGEWAY THEREBY TO SUPPLY REPLACEMENT LIQUID IN THE PRE-LOADING CHAMBER TO FILL THE SPACE VACATED BY THE SOLID PARTICLES.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |