Patent US2418872A successfully refreshed from Google Patents.
Patent US3256970A successfully refreshed from Google Patents.
US3256970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work station conveyor
Assignee: Unibel SA
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Filing: 1964-12-22
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Granted: 1966-06-21
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Expires: 1984-12-22
Abstract
No abstract record available.
Inventors
- 👤 Fievet Robert Henri Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:03
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/60; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
AN APPARATUS WITH CONTINUOUSLY TRAVELLING TRANSFER CHAIN AND WITH STATIONS FOR MOMENTARILY HALTING THE TRANSLATION OF THE OBJECTS CONVEYED BY SAID CHAIN COMPRISING, IN COMBINATION, AN ENDLESS CHAIN HAVING A PLURALITY OF LINKS, PINS INTERCONNECTING SAID LINKS BEARER MEMBERS HAVING CIRCULAR LOCATIONS THEREOF FOR THE CONVEYED OBJECTS AND SECURED LATERALLY WITH RESPECT TO SAID CHAIN ON THE PINS OF ATTACHMENT LINKS WHICH ARE DISPOSED AT INTERVALS OF SEVERAL LINKS BETWEEN EACH OTHER, AND, AT EACH MOMENTARY HALTING STATION, EXTERNAL AND INTERNAL GUIDES BETWEEN WHICH SAID CHAIN TRAVELS, SAID GUIDES DFINING FOR SAID CHAIN A PATH COMPRISING A CENTRAL ARC OF A CIRCLE WHICH IS CONNECTED TO THE GENERAL PATH OF SAID CHAIN THROUGH ENTRY AND EXIT CURVES, SAID ARC OF A CIRCLE HAVING A RADIUS EQUAL TO THE DISTANCE OF THE CENTER OF SAID LOCATION FROM ONE OF THE PINS OF THE CORRESPONDING ATTACHMENT LINK WHILE THE CONCAVITY THEREOF IS DIRECTED TOWARD THE BEARER MEMBERS SECURED ON THE CORRESPONDING RUN OF THE CHAIN, THE INTERVAL BETWEEN TWO SUCCESIVE ATTACHMENT LINKS BEING GREATER THAN THE SUM OF THE LENGTHS OF SAID CURVES AND OF SAID ARC.
Claim 2
Independent Claim
185 words
AN APPARATUS WITH CONTINUOUSLY TRAVELLING TRANSFER CHAIN AND WITH STATIONS FOR MOMENTARILY HALTING THE TRANSLATION OF THE OBJECTS CONVEYED BY SAID CHAIN COMPRISING, IN COMBINATION, AN ENDLESS CHAIN HAVING A PLURALITY OF LINKS, PINS INTERCONNECTING SAID LINKS BEARER MEMBERS HAVING CIRCULAR LOCATIONS THEREOF FOR THE CONVEYED OBJECTS AND SECURED LATERALLY WITH RESPECT TO SAID CHAIN ON THE PINS OF ATTACHMENT LINKS WHICH ARE DISPOSED AT INTERVALS OF SEVERAL LINKS BETWEEN EACH OTHER, AND, AT EACH MOMENTARY HALTING STATION, EXTERNAL AND INTERNAL GUIDES BETWEEN WHICH SAID CHAIN TRAVELS, SAID GUIDES DFINING FOR SAID CHAIN A PATH COMPRISING A CENTRAL ARC OF A CIRCLE WHICH IS CONNECTED TO THE GENERAL PATH OF SAID CHAIN THROUGH ENTRY AND EXIT CURVES, SAID ARC OF A CIRCLE HAVING A RADIUS EQUAL TO THE DISTANCE OF THE CENTER OF SAID LOCATION FROM ONE OF THE PINS OF THE CORRESPONDING ATTACHMENT LINK WHILE THE CONCAVITY THEREOF IS DIRECTED TOWARD THE BEARER MEMBERS SECURED ON THE CORRESPONDING RUN OF THE CHAIN, THE INTERVAL BETWEEN TWO SUCCESIVE ATTACHMENT LINKS BEING GREATER THAN THE SUM OF THE LENGTHS OF SAID CURVES AND OF SAID ARC.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |