Patent US3132738A successfully refreshed from Google Patents.
US3132738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer
Assignee: Individual
•
Filing: 1961-04-10
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Granted: 1964-05-12
•
Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 Engseth Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:30
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/14; B65G19/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A CONVEYOR FOR CONVEYING GRANULAR MATERIALS COMPRISING: A HORIZONTAL TROUGH HAVING CONVERGING ELONGATED SIDES SLOPING DOWNWARDLY AND INWARDLY TO DEFINE AN ELONGATED CROTCH, SAID TROUGH SUPPORTING SUCH GRANULAR MATERIALS TO BE CONVEYED AND HAVING A DISCHARGE OPENING IN THE LOWER PORTION THEREOF; CLOSURE MEANS SUPPORTED BY SAID TROUGH FOR CLOSING SAID OPENING; GUIDE MEANS GUIDING SAID CLOSURE MEANS BETWEEN POSITIONS OF CLOSING SAID OPENING AND BEING DISPOSED AWAY FROM SAID OPENING TO PERMIT DISCHARGE OF SUCH GRANULAR MATERIAL THROUGH SAID OPENING; A FLAT CONTINUOUS AND UNOBSTRUCTED VERTICALLY EXTENDING BELT HAVING TWO CONTINUOUS SURFACES FOR FRICTIONALLY ENGAGING SUCH GRANULAR MATERIALS, THE LOWER EDGE OF SAID BELT BEING SLIDABLY SUPPORTED BY SAID ELONGATED CROTCH AND HAVING ITS UPPER EDGE SUBSTANTIALLY CENTRALLY DISPOSED BETWEEN SAID SIDES OF SAID TROUGH, SAID CONVERGING SIDES AND CROTCH COOPERATIVELY URGING SUCH GRANULAR MATERIAL INTO ENGAGEMENT WITH BOTH SURFACES OF SAID BELT TO CONTINUOUSLY CONVEY SUCH GRANULAR MATERIAL THEREALONG TO SAID DISCHARGE OPENING THEREBY IMPARTING A POSITIVE AND CONTINUOUS MOVING ACTION TO SUCH GRANULAR MATERIAL WHEN SAID BELT IS BEING DRIVEN; AND DRIVING MEANS DRIVINGLY SUPPORTING SAID FLAT BELT TO MOVE SAID BELT THROUGH SAID TROUGH PAST SAID DISCHARGE OPENING.
Claim 2
Dependent Claim
192 words
A CONVEYOR FOR CONVEYING GRANULAR MATERIALS COMPRISING: A HORIZONTAL TROUGH HAVING CONVERGING ELONGATED SIDES SLOPING DOWNWARDLY AND INWARDLY TO DEFINE AN ELONGATED CROTCH, SAID TROUGH SUPPORTING SUCH GRANULAR MATERIALS TO BE CONVEYED AND HAVING A DISCHARGE OPENING IN THE LOWER PORTION THEREOF; CLOSURE MEANS SUPPORTED BY SAID TROUGH FOR CLOSING SAID OPENING; GUIDE MEANS GUIDING SAID CLOSURE MEANS BETWEEN POSITIONS OF CLOSING SAID OPENING AND BEING DISPOSED AWAY FROM SAID OPENING TO PERMIT DISCHARGE OF SUCH GRANULAR MATERIAL THROUGH SAID OPENING; A FLAT CONTINUOUS AND UNOBSTRUCTED VERTICALLY EXTENDING BELT HAVING TWO CONTINUOUS SURFACES FOR FRICTIONALLY ENGAGING SUCH GRANULAR MATERIALS, THE LOWER EDGE OF SAID BELT BEING SLIDABLY SUPPORTED BY SAID ELONGATED CROTCH AND HAVING ITS UPPER EDGE SUBSTANTIALLY CENTRALLY DISPOSED BETWEEN SAID SIDES OF SAID TROUGH, SAID CONVERGING SIDES AND CROTCH COOPERATIVELY URGING SUCH GRANULAR MATERIAL INTO ENGAGEMENT WITH BOTH SURFACES OF SAID BELT TO CONTINUOUSLY CONVEY SUCH GRANULAR MATERIAL THEREALONG TO SAID DISCHARGE OPENING THEREBY IMPARTING A POSITIVE AND CONTINUOUS MOVING ACTION TO SUCH GRANULAR MATERIAL WHEN SAID BELT IS BEING DRIVEN; AND DRIVING MEANS DRIVINGLY SUPPORTING SAID FLAT BELT TO MOVE SAID BELT THROUGH SAID TROUGH PAST SAID DISCHARGE OPENING.
References Cited (Backward Citations)
US405608A
Cited
US690943A
Cited
GB238369A
Cited
US1860952A
Cited
US2115620A
Cited
US2254116A
Cited
US2739797A
Cited
US2714950A
Cited
DE1041873B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |