US3076418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor systems
Assignee: Fisher and Ludlow Ltd
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Filing: 1961-06-14
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Granted: 1963-02-05
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Expires: 1981-06-14
Abstract
No abstract record available.
Inventors
- 👤 Olaf J B Orwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:04
CPC Classifications
B; B65; B65G; B65G47/00; B65G2811/00; B65G2811/06; B65G2811/0673; B65G2811/0678; B65G2811/0684
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
349 words
A CONVEYOR SYSTEM COMPRISING: (A) A CONVEYOR TRACK, (B) AN ENDLESS CONVEYOR ELEMENT SUPPORTED FROM SAID CONVEYOR TRACK AND HAVING FIXEDLY MOUNTED THEREON A PLURALITY OF DRIVING DOGS SPACED ALONG THE LENGTH OF THE CONVEYOR ELEMENT AND PROJECTING DOWNWARDLY THEREFROM WITH EACH DOG HAVING A DRIVING FACE DIRECTED IN THE DIRECTION OF ADVANCEMENT OF THE CONVEYOR ELEMENT, (C) A TROLLEY TRACK SUPPORTED BENEATH THE CONVEYOR TRACK, (D) A PLURALITY OF WHEELED TROLLEYS DISPOSED BENEATH THE UNDERSIDE OF THE CONVEYOR ELEMENT AND ADVANCEABLE ALONG SAID TROLLEY TRACK, (E) A DRIVING SHOE ON EACH TROLLEY EXTENDING IN THE DIRECTION OF TROLLEY ADVANCEMENT AND PIVOTED TO THE TROLLEY INTERMEDIATE THE TWO ENDS OF THE SHOE FOR MOVEMENT ABOUT AN AXIS TRANSVERSE TO THE DIRECTION OF TROLLEY ADVANCEMENT, (F) THE END OF EACH TROLLEY SHOE SITUATED REARMOST IN THE DIRECTION OF TROLLEY ADVANCEMENT PROVIDING A DRIVING FACE ENGAGEABLE WITH THE DRIVING FACE OF ANY ONE OF SAID DOG DRIVING FACES, (G) EACH TROLLEY SHOE HAVING A DOWNWARDLY DIRECTED ABUTMENT FACE SITUATED ON THAT SIDE OF THE SHOE PIVOT WHICH IS FOREMOST HAVING REGARD TO THE DESIGNED DIRECTION OF ADVANCEMENT OF THE TROLLEY, (H) A PLURALITY OF TROLLEY DRIVE DISENGAGING ELEMENTS SPACED ALONG THE LENGTH OF THE TROLLEY TRACK, EACH HAVING A CAM PORTION MOVABLE IN A SUBSTANTIALLY HORIZONTAL DIRECTION TRANSVERSE TO THE LENGTH OF THE TROLLEY TRACK BETWEEN AN INOPERATIVE POSITION IN WHICH THE CAM PORTION IS CLEAR OF THE PATH OF ADVANCEMENT OF THE TROLLEYS AND TROLLEY SHOES THEREON, AND AN OPERATIVE POSITION IN WHICH THE CAM PORTION IS ADAPTED TO ENGAGE WITH THE DOWNWARDLY DIRECTED ABUTMENT FACE OF A TROLLEY SHOE ENGAGED BY ONE OF SAID DOGS, (I) EACH OF SAID CAM PORTIONS IN THEIR OPERATIVE POSITION BEING ADAPTED TO APPLY UPWARDLY DIRECTED PRESSURE TO THE ENGAGED TROLLEY SHOE ABUTMENT FACE AND THUS ROCK THE TROLLEY SHOE ABOUT ITS PIVOT TO SWING THE DOG ENGAGING END OF THE SHOE DOWNWARDLY AND OUT OF DRIVING ENGAGEMENT WITH SAID DOG, (J) AND MEANS FOR ACTUATING SAID TROLLEY DRIVE DISENGAGING ELEMENTS TO EFFECT DISPLACEMENT OF THEIR RESPECTIVE CAM PORTIONS BETWEEN THE SAID TWO POSITIONS.
Claim 2
Dependent Claim
349 words
A CONVEYOR SYSTEM COMPRISING: (A) A CONVEYOR TRACK, (B) AN ENDLESS CONVEYOR ELEMENT SUPPORTED FROM SAID CONVEYOR TRACK AND HAVING FIXEDLY MOUNTED THEREON A PLURALITY OF DRIVING DOGS SPACED ALONG THE LENGTH OF THE CONVEYOR ELEMENT AND PROJECTING DOWNWARDLY THEREFROM WITH EACH DOG HAVING A DRIVING FACE DIRECTED IN THE DIRECTION OF ADVANCEMENT OF THE CONVEYOR ELEMENT, (C) A TROLLEY TRACK SUPPORTED BENEATH THE CONVEYOR TRACK, (D) A PLURALITY OF WHEELED TROLLEYS DISPOSED BENEATH THE UNDERSIDE OF THE CONVEYOR ELEMENT AND ADVANCEABLE ALONG SAID TROLLEY TRACK, (E) A DRIVING SHOE ON EACH TROLLEY EXTENDING IN THE DIRECTION OF TROLLEY ADVANCEMENT AND PIVOTED TO THE TROLLEY INTERMEDIATE THE TWO ENDS OF THE SHOE FOR MOVEMENT ABOUT AN AXIS TRANSVERSE TO THE DIRECTION OF TROLLEY ADVANCEMENT, (F) THE END OF EACH TROLLEY SHOE SITUATED REARMOST IN THE DIRECTION OF TROLLEY ADVANCEMENT PROVIDING A DRIVING FACE ENGAGEABLE WITH THE DRIVING FACE OF ANY ONE OF SAID DOG DRIVING FACES, (G) EACH TROLLEY SHOE HAVING A DOWNWARDLY DIRECTED ABUTMENT FACE SITUATED ON THAT SIDE OF THE SHOE PIVOT WHICH IS FOREMOST HAVING REGARD TO THE DESIGNED DIRECTION OF ADVANCEMENT OF THE TROLLEY, (H) A PLURALITY OF TROLLEY DRIVE DISENGAGING ELEMENTS SPACED ALONG THE LENGTH OF THE TROLLEY TRACK, EACH HAVING A CAM PORTION MOVABLE IN A SUBSTANTIALLY HORIZONTAL DIRECTION TRANSVERSE TO THE LENGTH OF THE TROLLEY TRACK BETWEEN AN INOPERATIVE POSITION IN WHICH THE CAM PORTION IS CLEAR OF THE PATH OF ADVANCEMENT OF THE TROLLEYS AND TROLLEY SHOES THEREON, AND AN OPERATIVE POSITION IN WHICH THE CAM PORTION IS ADAPTED TO ENGAGE WITH THE DOWNWARDLY DIRECTED ABUTMENT FACE OF A TROLLEY SHOE ENGAGED BY ONE OF SAID DOGS, (I) EACH OF SAID CAM PORTIONS IN THEIR OPERATIVE POSITION BEING ADAPTED TO APPLY UPWARDLY DIRECTED PRESSURE TO THE ENGAGED TROLLEY SHOE ABUTMENT FACE AND THUS ROCK THE TROLLEY SHOE ABOUT ITS PIVOT TO SWING THE DOG ENGAGING END OF THE SHOE DOWNWARDLY AND OUT OF DRIVING ENGAGEMENT WITH SAID DOG, (J) AND MEANS FOR ACTUATING SAID TROLLEY DRIVE DISENGAGING ELEMENTS TO EFFECT DISPLACEMENT OF THEIR RESPECTIVE CAM PORTIONS BETWEEN THE SAID TWO POSITIONS.
References Cited (Backward Citations)
US2883942A
Cited
US2987012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |