Patent US3354834A successfully refreshed from Google Patents.
US3354834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyors for conveying goods
Assignee: Fisher and Ludlow Ltd
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Filing: 1965-04-22
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Granted: 1967-11-28
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Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Orwin Olaf John Barclay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:06
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/02; B61B10/022; B61B10/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A CONVEYOR FOR CONVEYING GOODS, COMPRISING A TROLLEY TRACK HAVING AN UPWARDLY DIRECTED LOAD SUPPORTING FACE, A POWERED TROLLEY DRIVING ELEMENTS, A PLURALITY OF LOAD CARRYING TROLLEYS OF SAID TROLLEYS HAVING A PLURALITY OF LOAD SUPPORTING WHEELS THE UNDERSIDES OF WHICH ARE IN ENGAGEMENT WITH SAID LOAD SUPPORTING FACE OF THE TRACK, SAID TROLLEYS BEING ADAPTED TO BE ADVANCED ALONG THE TRACK BY SAID DRIVING ELEMENT, MEANS FOR DISCONNECTING THE DRIVE FROM SAID DRIVING ELEMENT TO THE TROLLEYS, EACH OF SAID TROLLEYS HAVING MOUNTED THEREON FOR PIVOTAL MOVEMENT ABOUT AN AXIS TRANSVERSE TO THE DIRECTION OF ADVANCEMENT OF THE TROLLEYS, A CAM MEMBER HAVING A DOWNWARDLY DIRECTED CAM FACE OF CONVEXEDLY CURVED CONFIGURATION ADAPTED FRICTIONALLY TO ENGAGE WITH AN UPWARDLY
Claim 2
Dependent Claim
120 words
A CONVEYOR FOR CONVEYING GOODS, COMPRISING A TROLLEY TRACK HAVING AN UPWARDLY DIRECTED LOAD SUPPORTING FACE, A POWERED TROLLEY DRIVING ELEMENTS, A PLURALITY OF LOAD CARRYING TROLLEYS OF SAID TROLLEYS HAVING A PLURALITY OF LOAD SUPPORTING WHEELS THE UNDERSIDES OF WHICH ARE IN ENGAGEMENT WITH SAID LOAD SUPPORTING FACE OF THE TRACK, SAID TROLLEYS BEING ADAPTED TO BE ADVANCED ALONG THE TRACK BY SAID DRIVING ELEMENT, MEANS FOR DISCONNECTING THE DRIVE FROM SAID DRIVING ELEMENT TO THE TROLLEYS, EACH OF SAID TROLLEYS HAVING MOUNTED THEREON FOR PIVOTAL MOVEMENT ABOUT AN AXIS TRANSVERSE TO THE DIRECTION OF ADVANCEMENT OF THE TROLLEYS, A CAM MEMBER HAVING A DOWNWARDLY DIRECTED CAM FACE OF CONVEXEDLY CURVED CONFIGURATION ADAPTED FRICTIONALLY TO ENGAGE WITH AN UPWARDLY
References Cited (Backward Citations)
US3200768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |