Patent DE302085C successfully refreshed from Google Patents.
Patent US3184044A successfully refreshed from Google Patents.
US3184044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating conveyors
Assignee: ALLEN-HARPER Inc
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Filing: 1962-10-29
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Granted: 1965-05-18
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Allen
- 👤 Chester H Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:27
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/04; B65G25/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
IN A CONVEYOR, AN ARTICLE GUIDING TRACK, A GUIDE EXTENDING ALONG ONE SIDE OF THE TRACK, A DRIVING BAR SLIDABLE IN THE GUIDE, A DRAG BAR FRICTIONALLY ENGAGING AND SLIDABLE IN THE GUIDE ALONGSIDE OF THE DRIVING BAR AND BEING LOCATED IN THE GUIDE AT A POSITION ON THE OPPOSITE SIDE OF THE DRIVING BAR FROM THE TRACK, A DOG HAVING A SLOT EXTENDING ALONG THE CENTRAL PORTION THEREOF AND A HOLE AT ONE END THEREOF, A FIRST PIN ON THE DRIVING BAR AND PROJECTING INTO THE SLOT, A SECOND PIN ON THE DRAG BAR AND PROJECTING INTO THE HOLE, AND MEANS FOR RECIPROCATING THE DRIVING BAR ALONG THE GUIDE TO PULL THE DRAP BAR THROUGH THE DOG AND RETRACT THE DOG FROM THE TRACK IN MOVEMENT IN ONE DIRECTION, THE DRIVING BAR BEING PROVIDED WITH A MEMBER AT ONE END THEREOF FOR ENGAGING AND PUSHING THE DRAG BAR AFTER THE DOG HAS BEEN SWUNG INTO THE TRACK WHEN THE DRIVING BAR IS MOVED IN THE DIRECTION OPPOSITE TO SAID ONE DIRECTION.
Claim 2
Dependent Claim
172 words
IN A CONVEYOR, AN ARTICLE GUIDING TRACK, A GUIDE EXTENDING ALONG ONE SIDE OF THE TRACK, A DRIVING BAR SLIDABLE IN THE GUIDE, A DRAG BAR FRICTIONALLY ENGAGING AND SLIDABLE IN THE GUIDE ALONGSIDE OF THE DRIVING BAR AND BEING LOCATED IN THE GUIDE AT A POSITION ON THE OPPOSITE SIDE OF THE DRIVING BAR FROM THE TRACK, A DOG HAVING A SLOT EXTENDING ALONG THE CENTRAL PORTION THEREOF AND A HOLE AT ONE END THEREOF, A FIRST PIN ON THE DRIVING BAR AND PROJECTING INTO THE SLOT, A SECOND PIN ON THE DRAG BAR AND PROJECTING INTO THE HOLE, AND MEANS FOR RECIPROCATING THE DRIVING BAR ALONG THE GUIDE TO PULL THE DRAP BAR THROUGH THE DOG AND RETRACT THE DOG FROM THE TRACK IN MOVEMENT IN ONE DIRECTION, THE DRIVING BAR BEING PROVIDED WITH A MEMBER AT ONE END THEREOF FOR ENGAGING AND PUSHING THE DRAG BAR AFTER THE DOG HAS BEEN SWUNG INTO THE TRACK WHEN THE DRIVING BAR IS MOVED IN THE DIRECTION OPPOSITE TO SAID ONE DIRECTION.
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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |