Patent US4881555A successfully refreshed from Google Patents.
Patent US3768624A successfully refreshed from Google Patents.
US3768624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic belt conveyor
Assignee: Kornylak Corp
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Filing: 1972-02-11
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Granted: 1973-10-30
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Expires: 1992-02-11
Abstract
Abstract A belt type conveyor for transporting loads. A tube is formed with a track in one surface to support and guide an endless belt. The return run is carried in the tube. The outer surface of the belt is engaged with the load to propel it from one station to another.
Inventors
- 👤 A Kornylak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:14
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/18; B65G19/22; B65G19/225; B65G21/00; B65G21/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
169 words
A conveyor comprising an elongated support comprising a pair of transversely spaced rails, a flexible belt and means supporting said flexible belt for longitudinal movement between the rails, the upper exposed surface of the belt being transversely corrugated to provide longitudinally spaced alternate depressions and projections in the said exposed surface, the uppermost surfaces of the projections being below the rail surfaces, a carrier movably supported on the rails and provided with stiffly resilient means yieldable longitudinally of the belt projecting into the depression between a pair of projections for driving the carrier by contact with the forward wall of the adjacent projection upon movement of the belt, said stiffly resilient means being yieldable upon restraint of the carrier against movement by the belt to permit the belt to move relative thereto, a rigid tubular member extending along and between the rails, the undersurface of the belt being supported on the outer surface of the tubular member and the return run of the belt being within the tubular member.
Claim 2
Dependent Claim
169 words
A conveyor comprising an elongated support comprising a pair of transversely spaced rails, a flexible belt and means supporting said flexible belt for longitudinal movement between the rails, the upper exposed surface of the belt being transversely corrugated to provide longitudinally spaced alternate depressions and projections in the said exposed surface, the uppermost surfaces of the projections being below the rail surfaces, a carrier movably supported on the rails and provided with stiffly resilient means yieldable longitudinally of the belt projecting into the depression between a pair of projections for driving the carrier by contact with the forward wall of the adjacent projection upon movement of the belt, said stiffly resilient means being yieldable upon restraint of the carrier against movement by the belt to permit the belt to move relative thereto, a rigid tubular member extending along and between the rails, the undersurface of the belt being supported on the outer surface of the tubular member and the return run of the belt being within the tubular member.
Claim 3
Dependent Claim
37 words
A conveyor according to claim 1 wherein the resilient means includes at least one leaf spring connected at one end to the carrier and projecting therefrom with its free end portion in the depression between two projections.
Claim 4
Dependent Claim
44 words
A conveyor according to claim 2 in which the free end portion of the spring extending into the depression is formed with a bight which has a rounded bottom to ride on the surfaces of the projections when the carrier is restrained against movement.
Claim 5
Dependent Claim
23 words
A conveyor according to claim 3 wherein said spring has stiffness in a direction transverse to the direction of movement of said belt.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |