US3319778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless chain conveyors
Assignee: HIMPELM ENGINEERS Ltd
•
Filing: 1966-03-30
•
Granted: 1967-05-16
•
Expires: 1986-03-30
Abstract
No abstract record available.
Inventors
- 👤 Bessant Albert Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:33
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/067; B65G17/068; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
AN ENDLESS CHAIN CONVEYOR INCORPORATING A CONVEYING SURFACE MEANS, MAIN ROLLERS FOR SUPPORTING SAID CONVEYING SURFACE MEANS, AXLES FOR CARRYING OPPOSITE PAIRS OF SAID MAIN ROLLERS, TRACKS FOR SAID MAIN ROLLERS ARRANGED AT EACH SIDE OF THE CONVEYING SURFACE MEANS, ENDLESS CHAINS ARRANGED AT EACH SIDE OF THE CONVEYING SURFACE MEANS INCLUDING LINKS WHICH ARE INTERCONNECTED SO AS TO PERMIT HINGING ABOUT BOTH HORIZONTAL AND VERTICAL AXES, SPROCKETS FOR CARRYING AND DRIVING SAID ENDLESS CHAINS THE TEETH OF WHICH ARE ENGAGED BY SAID MAIN ROLLERS, CONTROL ROLLERS PROVIDED AT EACH SIDE OF THE CONVEYING SURFACE AND LOCATED OUTBOARD OF THE MAIN ROLLERS AFORESAID, LINKS LOCATED BELOW THE PLANE OF THE SUPPORTING SURFACE MEANS WHICH ARE HINGEDLY INTERCONNECTED BY COMMON VERTICAL PIVOT PINS, SAID VERTICAL PIVOT PINS SERVING ALSO AS AXLES FOR THE SAID CONTROL ROLLERS THEREBY PERMITTING THEM TO CONTRACT OR FOLD IN A HORIZONTAL DIRECTION, DISCONTINUOUS AUXILIARY TRACKS FOR THE CONTROL ROLLERS TO DEVINE AND A LATERAL BEND OUTBOARD OF SAID MAIN ROLLERS TO DEFINE AND CONTROL THE DIRECTION OF TRAVEL OF THE ENDLESS CHAINS AROUND THE RELEVANT LATERAL BEND, SAID AUXILIARY TRACKS
Claim 2
Dependent Claim
184 words
AN ENDLESS CHAIN CONVEYOR INCORPORATING A CONVEYING SURFACE MEANS, MAIN ROLLERS FOR SUPPORTING SAID CONVEYING SURFACE MEANS, AXLES FOR CARRYING OPPOSITE PAIRS OF SAID MAIN ROLLERS, TRACKS FOR SAID MAIN ROLLERS ARRANGED AT EACH SIDE OF THE CONVEYING SURFACE MEANS, ENDLESS CHAINS ARRANGED AT EACH SIDE OF THE CONVEYING SURFACE MEANS INCLUDING LINKS WHICH ARE INTERCONNECTED SO AS TO PERMIT HINGING ABOUT BOTH HORIZONTAL AND VERTICAL AXES, SPROCKETS FOR CARRYING AND DRIVING SAID ENDLESS CHAINS THE TEETH OF WHICH ARE ENGAGED BY SAID MAIN ROLLERS, CONTROL ROLLERS PROVIDED AT EACH SIDE OF THE CONVEYING SURFACE AND LOCATED OUTBOARD OF THE MAIN ROLLERS AFORESAID, LINKS LOCATED BELOW THE PLANE OF THE SUPPORTING SURFACE MEANS WHICH ARE HINGEDLY INTERCONNECTED BY COMMON VERTICAL PIVOT PINS, SAID VERTICAL PIVOT PINS SERVING ALSO AS AXLES FOR THE SAID CONTROL ROLLERS THEREBY PERMITTING THEM TO CONTRACT OR FOLD IN A HORIZONTAL DIRECTION, DISCONTINUOUS AUXILIARY TRACKS FOR THE CONTROL ROLLERS TO DEVINE AND A LATERAL BEND OUTBOARD OF SAID MAIN ROLLERS TO DEFINE AND CONTROL THE DIRECTION OF TRAVEL OF THE ENDLESS CHAINS AROUND THE RELEVANT LATERAL BEND, SAID AUXILIARY TRACKS
References Cited (Backward Citations)
US1626492A
Cited
US3265193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |