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US 7,798,312 B2Granted
Compression passing roller
AssigneeShuttleworth, Inc.
InventorChristopher A. Brumm
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for conveying a stack (22) of paper products by the use of rollers (50, 150, 250 or 350) that include lobed outer surfaces for contacting the stack of paper.
Claims36
An apparatus for conveying a product, comprising:
- a plurality of roller shafts;
- a plurality of driven rollers supported by each said roller shaft, each said roller having an outer surface and a plurality of lobes placed circumferentially around the outer surface, each said lobe being at least partly non-circular, and
- a static member having a top surface and a length extending from between a first pair of said rollers of a first said shaft to between a second pair of said rollers of a second said shaft;
- wherein said lobes support the product at a first vertical height, and the top surface of the static member is adapted and configured to support a portion of the product between a pair of said rollers at a second vertical height different than the first vertical height.
1 more element
An apparatus for conveying a product, comprising:
- a roller shaft having a smooth outer diameter;
- and
- a plurality of rollers rotatably supported by said roller shaft, each said roller having an outer surface and a plurality of lobes placed circumferentially around the outer surface, each said lobe being at least partly non-circular, each said roller having an inner diameter adapted and configured for being slippably driven by said shaft.
An apparatus for conveying a product, comprising:
- a roller shaft having an outer diameter;
- and
- a plurality of rollers supported by the outer diameter of said roller shaft, each said roller having an outer surface and a plurality of equally-spaced lobes placed circumferentially around the outer surface,
- wherein adjacent said rollers are in fixed relationship to each other such that there is a predetermined angular offset from a lobe of one said roller to a lobe of the adjacent said roller and the angular offset is more than about 14 degrees and less than about 56 degrees.
1 more element
Dependencies are inferred from the claim text.