Patent US2689379A successfully refreshed from Google Patents.
US3970190A
Expired / Lapsed
US
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Roller chain conveyor belt
Assignee: Mayfran International Inc
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Filing: 1974-11-04
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Granted: 1976-07-20
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Expires: 1994-11-04
Abstract
Abstract A steel slatted conveyor belt wherein the slats are supported by a pair of conventional roller chains moving on a supporting track and the impact and longitudinal loadings on the slats are transmitted longitudinally by an additional set of slat side links, the ends of which overlap and are pivoted relative to each other by the roller chain shafts. The conveyor slats are Z shaped in transverse cross-section and are rigidly fixed to the slat side links.
Inventors
- 👤 Lawrence H. G. Kovats
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:16
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/10; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A continuous roller chain type conveyor belt of the type to be supported on a pair of parallel extending supporting tracks, sprocket members at each end of each track, said belt including a pair of laterally spaced roller chains each comprised of a plurality of rollers and a row of chain links one on each side of said rollers and overlapping at the ends, roller shafts extending through said rollers and the overlapping ends of said chain links, a plurality of individual conveyor slats extending transversely between said roller chains; the improvement which comprises: a plurality of substantially flat slat links one affixed to each end of said slats and in continuous overlapping relationship at the ends, the vertical height of said slat links being substantially greater than the vertical height of said chain links in order to laterally retain material on said conveyor, said roller shafts extending through the overlapping portions of said slat links and holding same in pivoted relationship, the length between the pivot points of said chain and slat links being substantially equal so that longitudinal forces on said slats are transmitted through said slat links and said roller shafts.
Claim 2
Dependent Claim
194 words
A continuous roller chain type conveyor belt of the type to be supported on a pair of parallel extending supporting tracks, sprocket members at each end of each track, said belt including a pair of laterally spaced roller chains each comprised of a plurality of rollers and a row of chain links one on each side of said rollers and overlapping at the ends, roller shafts extending through said rollers and the overlapping ends of said chain links, a plurality of individual conveyor slats extending transversely between said roller chains; the improvement which comprises: a plurality of substantially flat slat links one affixed to each end of said slats and in continuous overlapping relationship at the ends, the vertical height of said slat links being substantially greater than the vertical height of said chain links in order to laterally retain material on said conveyor, said roller shafts extending through the overlapping portions of said slat links and holding same in pivoted relationship, the length between the pivot points of said chain and slat links being substantially equal so that longitudinal forces on said slats are transmitted through said slat links and said roller shafts.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |