Patent US4364387A successfully refreshed from Google Patents.
Patent US3268061A successfully refreshed from Google Patents.
US3268061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous and reversible vertical conveyor
Assignee: Rapids Standard Co Inc
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Filing: 1965-10-20
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Granted: 1966-08-23
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Good Maynard J De
- 👤 Clyde L Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/12; B65G17/123; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A VERTICAL CONVEYOR HAVING A LOADING STATION AT ONE END AND AN UNLOADING STATION AT THE OTHER END AND A FIRST PAIR AND A SECOND PAIR OF ENDLESS CHAINS SYNCHRONOUSLY DRIVEN AT AN IDENTICAL SPEED WITH VERTICAL PORTIONS THEREOF TRAVELING BETWEEN THE LOADING AND UNLOADING STATIONS; A PLURALITY OF CARRIAGES EACH CAPABLE OF FLEXING UNDER LOADS ACTING IN ONE DIRECTION AND LOCKING UP TO FORM A RIGID, FLAT PLATFORM UNDER LOADS ACTING IN THE OPPOSITE DIRECTION; THE CARRIAGES BEING ALIGNED WITH AND IN THE SAME VERTICAL PLANE AS THE CHAINS OF THE FIRST PAIR OF CHAINS WHEN TRAVELING FROM THE UNLOADING STATION TO THE LOADING STATION; THE FIRST PAIR OF CHAINS HAVING A HORIZONTAL LEG AT EACH OF THE STATIONS, AT LEAST AS LONG AS THE CARRIAGES; THE VERTICAL PORTIONS OF THE FIRST AND SECOND PAIRS OF CHAIN TRAVELING TOWARD THE UNLOADING STATION BEING SPACED APART THE LENGTH OF THE CARRIAGES; THE IMPROVEMENT IN SAID CONVEYOR COMPRISING; EACH OF SAID CARRIAGES BEING PIVOTALLY ATTACHED AT ONE OF ITS ENDS TO AND BETWEEN THE CHAINS OF THE FIRST PAIR OF CHAINS AND AT THE OTHER OF ITS ENDS BEING FREE AND HAVING A SUPPORTED MEMBER; LIFT MEMBERS ATTACHED TO THE CHAINS OF THE SECOND PAIR OF CHAINS IN SUCH SPACED RELATIONSHIP THAN AT LEAST CERTAIN OF THE LIFT MEMBERS ARE
Claim 2
Dependent Claim
219 words
A VERTICAL CONVEYOR HAVING A LOADING STATION AT ONE END AND AN UNLOADING STATION AT THE OTHER END AND A FIRST PAIR AND A SECOND PAIR OF ENDLESS CHAINS SYNCHRONOUSLY DRIVEN AT AN IDENTICAL SPEED WITH VERTICAL PORTIONS THEREOF TRAVELING BETWEEN THE LOADING AND UNLOADING STATIONS; A PLURALITY OF CARRIAGES EACH CAPABLE OF FLEXING UNDER LOADS ACTING IN ONE DIRECTION AND LOCKING UP TO FORM A RIGID, FLAT PLATFORM UNDER LOADS ACTING IN THE OPPOSITE DIRECTION; THE CARRIAGES BEING ALIGNED WITH AND IN THE SAME VERTICAL PLANE AS THE CHAINS OF THE FIRST PAIR OF CHAINS WHEN TRAVELING FROM THE UNLOADING STATION TO THE LOADING STATION; THE FIRST PAIR OF CHAINS HAVING A HORIZONTAL LEG AT EACH OF THE STATIONS, AT LEAST AS LONG AS THE CARRIAGES; THE VERTICAL PORTIONS OF THE FIRST AND SECOND PAIRS OF CHAIN TRAVELING TOWARD THE UNLOADING STATION BEING SPACED APART THE LENGTH OF THE CARRIAGES; THE IMPROVEMENT IN SAID CONVEYOR COMPRISING; EACH OF SAID CARRIAGES BEING PIVOTALLY ATTACHED AT ONE OF ITS ENDS TO AND BETWEEN THE CHAINS OF THE FIRST PAIR OF CHAINS AND AT THE OTHER OF ITS ENDS BEING FREE AND HAVING A SUPPORTED MEMBER; LIFT MEMBERS ATTACHED TO THE CHAINS OF THE SECOND PAIR OF CHAINS IN SUCH SPACED RELATIONSHIP THAN AT LEAST CERTAIN OF THE LIFT MEMBERS ARE
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |