Patent FR1565589A successfully refreshed from Google Patents.
Patent US3161284A successfully refreshed from Google Patents.
US3161284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating shuffle-bar conveyor with bell-crank lift
Assignee: United States Steel Corp
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Filing: 1962-12-11
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Granted: 1964-12-15
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Expires: 1982-12-11
Abstract
No abstract record available.
Inventors
- 👤 James E Ashworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:49
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
APPARATUS FOR LIFTING AND TRANSFERRING ARTICLES COMPRISING PARALLEL HORIZONTAL LIFT BARS, EACH OF SAID BARS HAVING A PAIR OF ARCUATE CAMMING SURFACES FORMED ON ITS UNDERSIDE ONE ADJACENT EACH END THEREOF, A WAY ADJACENT OPPOSITE SIDES OF EACH OF SAID BARS EXTENDING PARALLEL WITH EACH OTHER SUBSTANTIALLY IN THE HORIZONTAL PLANE CONTAINING THE BOTTOMS OF SAID BARS, SUPPORTS FOR EACH BAR SPACED THEREALONG, EACH SUPPORT INCLUDING A SHAFT EXTENDING TRANSVERSELY BETWEEN THE WAYS ADJACENT EACH BAR AND HAVING A WHEEL DISPOSED AT EACH END ADAPTED TO TRAVEL ALONG SAID WAYS, AND A BELL CRANK PIVOTED
Claim 2
Dependent Claim
95 words
APPARATUS FOR LIFTING AND TRANSFERRING ARTICLES COMPRISING PARALLEL HORIZONTAL LIFT BARS, EACH OF SAID BARS HAVING A PAIR OF ARCUATE CAMMING SURFACES FORMED ON ITS UNDERSIDE ONE ADJACENT EACH END THEREOF, A WAY ADJACENT OPPOSITE SIDES OF EACH OF SAID BARS EXTENDING PARALLEL WITH EACH OTHER SUBSTANTIALLY IN THE HORIZONTAL PLANE CONTAINING THE BOTTOMS OF SAID BARS, SUPPORTS FOR EACH BAR SPACED THEREALONG, EACH SUPPORT INCLUDING A SHAFT EXTENDING TRANSVERSELY BETWEEN THE WAYS ADJACENT EACH BAR AND HAVING A WHEEL DISPOSED AT EACH END ADAPTED TO TRAVEL ALONG SAID WAYS, AND A BELL CRANK PIVOTED
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-15 | 1968-06-15 | 1968-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-15 | 1972-06-15 | 1972-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-15 | 1976-06-15 | 1976-12-15 | $7700.00 | Window Closed / Lapsed |