Patent US3306218A successfully refreshed from Google Patents.
US3306218A
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Method of and apparatus for elevating liquids and semi-liquids
Assignee: Individual
•
Filing: 1965-09-13
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Granted: 1967-02-28
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Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 John P Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:34
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/02; E04G21/04; B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/42; E04G21/0409; F; F04; F04B; F04B19/00; F04B19/08; F04B19/14; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF ELEVATING LIQUIDS AND SEMI-LIQUIDS, COMPRISING THE STEPS OF FEEDING THE MATERIAL TO BE ELEVATED ONTO THE LOWER END OF THE WORKING FACE OF THE BELT OF AN UPWARDLYEXTENDING, ENDLESS, BELT CONVEYOR, SAID WORKING FACE OF WHICH BELT IS PROVIDED, TRANSVERSELY THEREOF, WITH MUTUALLY SPACED, LONGITUDINALLY STAGGERED, PROJECTIONS DEFINING A PLURALITY OF CONTINUOUS BUT DEVIOUS CHANNELS EXTENDING ENDLESSLY WITH AND SUPERFICIALLY OF SAID WORKING FACE OF THE BELT; AND DRIVING SAID BELT AT A SPEED SUCH THAT THE RESISTANCE TO FLOW OF SAID MATERIAL BY REASON OF FRICTIONAL ENGAGEMENT THEREOF WITH BELT AND BELT PROJECTION SURFACES IS GREATER THAN THE KINETIC ENERGY OF THE MATERIAL AS IT IS BEING ELEVATED.
Claim 2
Independent Claim
112 words
A METHOD OF ELEVATING LIQUIDS AND SEMI-LIQUIDS, COMPRISING THE STEPS OF FEEDING THE MATERIAL TO BE ELEVATED ONTO THE LOWER END OF THE WORKING FACE OF THE BELT OF AN UPWARDLYEXTENDING, ENDLESS, BELT CONVEYOR, SAID WORKING FACE OF WHICH BELT IS PROVIDED, TRANSVERSELY THEREOF, WITH MUTUALLY SPACED, LONGITUDINALLY STAGGERED, PROJECTIONS DEFINING A PLURALITY OF CONTINUOUS BUT DEVIOUS CHANNELS EXTENDING ENDLESSLY WITH AND SUPERFICIALLY OF SAID WORKING FACE OF THE BELT; AND DRIVING SAID BELT AT A SPEED SUCH THAT THE RESISTANCE TO FLOW OF SAID MATERIAL BY REASON OF FRICTIONAL ENGAGEMENT THEREOF WITH BELT AND BELT PROJECTION SURFACES IS GREATER THAN THE KINETIC ENERGY OF THE MATERIAL AS IT IS BEING ELEVATED.
References Cited (Backward Citations)
CA557146A
Cited
US1703963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |