Patent US2921008A successfully refreshed from Google Patents.
US2921008A
Expired / Lapsed
US
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Processing conveyor apparatus
Assignee: Individual
•
Filing: 1957-02-01
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Granted: 1960-01-12
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Hanck
- 👤 Paul A Hauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:44
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/0472; B65G49/0477; B65G49/0481; B65G49/049
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN PROCESSING CONVEYOR APPARATUS, A PAIR OF COMPANION CONVEYOR TRACKS, A POWER-OPERATED CONVEYOR ELEMENT MOVABLE UPON ONE TRACK AND INCLUDING SPACED PUSHER ELEMENTS, A PLURALITY OF FREE TROLLEYS MOVABLE UPON THE OTHER TRACK, EACH TROLLEY HAVING A MOVABLE TROLLEY DOG ENGAGABLE WITH ONE PUSHER ELEMENT FOR PROPELLING THE TROLLEY UPON SAID OTHER TRACK, AN ELEVATOR TRACK SECTION IN SAID OTHER TRACK AND ADAPTED TO RECEIVE A PLURALITY OF THE TROLLEYS, MEANS FOR LOWERING AND ELEVATING THE ELEVATOR TRACK SECTION WHILE SAID TROLLEYS ARE UPON THE SAME, A PLURALITY OF STOP ELELMENTS PIVOTALLY CONNECTED WITH SAID ONE TRACK HAVING THE CONVEYOR ELEMENT AND DISPOSED IN THE PATH OF TRAVEL OF THE TROLLEY DOGS AND ENGAGEABLE WITH THE SAME TO DISCONNECT THE TROLLEY FROM THE CONVEYOR ELEMENT AND TO STOP THEM UPON THE ELEVATOR TRACK SECTION.
Claim 2
Dependent Claim
134 words
IN PROCESSING CONVEYOR APPARATUS, A PAIR OF COMPANION CONVEYOR TRACKS, A POWER-OPERATED CONVEYOR ELEMENT MOVABLE UPON ONE TRACK AND INCLUDING SPACED PUSHER ELEMENTS, A PLURALITY OF FREE TROLLEYS MOVABLE UPON THE OTHER TRACK, EACH TROLLEY HAVING A MOVABLE TROLLEY DOG ENGAGABLE WITH ONE PUSHER ELEMENT FOR PROPELLING THE TROLLEY UPON SAID OTHER TRACK, AN ELEVATOR TRACK SECTION IN SAID OTHER TRACK AND ADAPTED TO RECEIVE A PLURALITY OF THE TROLLEYS, MEANS FOR LOWERING AND ELEVATING THE ELEVATOR TRACK SECTION WHILE SAID TROLLEYS ARE UPON THE SAME, A PLURALITY OF STOP ELELMENTS PIVOTALLY CONNECTED WITH SAID ONE TRACK HAVING THE CONVEYOR ELEMENT AND DISPOSED IN THE PATH OF TRAVEL OF THE TROLLEY DOGS AND ENGAGEABLE WITH THE SAME TO DISCONNECT THE TROLLEY FROM THE CONVEYOR ELEMENT AND TO STOP THEM UPON THE ELEVATOR TRACK SECTION.
References Cited (Backward Citations)
US2048937A
Cited
US2650600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |