Patent US2153077A successfully refreshed from Google Patents.
Patent US3598225A successfully refreshed from Google Patents.
US3598225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accumulating conveyor
Assignee: Alstom Power Inc
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Filing: 1969-04-10
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Granted: 1971-08-10
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Expires: 1989-04-10
Abstract
Abstract A roller conveyor of the accumulation type by which articles such as cartons to be conveyed from one place to another are supported on driven rollers. The articles on the rollers being so moved from one location to another are subject to stoppage or intermittent movement on the surface of the conveyor without causing congestion and pileup of such articles which might effect their jamming and breakage.
Inventors
- 👤 Lee Merrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:43
CPC Classifications
B; B65; B65G; B65G13/00; B65G13/02; B65G13/06; B65G13/071; B65G47/00; B65G47/22; B65G47/26; B65G47/261
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
187 words
An accumulation conveyor comprising in combination a frame, plurality of transversely disposed rollers mounted on said frame to form a composite surface for the movement of a load longitudinally along said frame, a flexible drive member having an upper run in frictional engagement with the lower surface of said rollers, means for moving said flexible drive member longitudinally along said frame to rotate the rollers in contact therewith, and releasable clutch means moving the rollers out of contact with the flexible drive member providing intermittent driving contact between the lower surface of said rollers and the flexible drive member, said clutch means comprising elongate tension members having an upper end supported by a side of said frame and a lower end carrying an end of the rollers which lie in contact with the flexible drive member whereby frictional engagement between the flexible member and said rollers causes said tension members to swing radially about the support on said frame thus moving the rollers out of contact with the flexible drive member when longitudinal movement of the load carried on the upper surface of the rollers is terminated.
Claim 2
Dependent Claim
187 words
An accumulation conveyor comprising in combination a frame, plurality of transversely disposed rollers mounted on said frame to form a composite surface for the movement of a load longitudinally along said frame, a flexible drive member having an upper run in frictional engagement with the lower surface of said rollers, means for moving said flexible drive member longitudinally along said frame to rotate the rollers in contact therewith, and releasable clutch means moving the rollers out of contact with the flexible drive member providing intermittent driving contact between the lower surface of said rollers and the flexible drive member, said clutch means comprising elongate tension members having an upper end supported by a side of said frame and a lower end carrying an end of the rollers which lie in contact with the flexible drive member whereby frictional engagement between the flexible member and said rollers causes said tension members to swing radially about the support on said frame thus moving the rollers out of contact with the flexible drive member when longitudinal movement of the load carried on the upper surface of the rollers is terminated.
Claim 3
Dependent Claim
54 words
An accumulation conveyor comprising a plurality of parallel roller means as defined in claim 1 wherein the clutch means releasably holding said rollers in contact with the belt comprises a pivotally held suspension means secured to an end of said roller and arcuately movable in the direction of movement of said power supply belt.
Claim 4
Dependent Claim
49 words
An accumulation conveyor comprising a plurality of parallel roller means as defined in claim 1 wherein the clutch means releasably holding said rollers in contact with the power supply belt is positioned at one end of said rollers while the opposite ends thereof are permanently mounted in said frame.
Claim 5
Dependent Claim
38 words
An accumulation conveyor as defined in claim 1 wherein the upper run of the endless drive member is substantially tangent to the transversely disposed rollers when said rollers are positioned at the lowermost portion of their arcuate support.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |