Pneumatic web feeding
AssigneeMolins Limited
InventorsMichael J. Cahill, Kevin R. Fincham
Life of this patent
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Abstract
An air mover (14) for producing a stream of air along a guide surface (28,30) for conveying web or other sheet material along a path adjacent the surface is constructed in two parts (16,18) having mating surfaces (23,24) one of which includes a recess (22) which defines a slot (26) through which conveying and entraining air is delivered to the guide surface from an air pressure chamber (20) within the air mover.
Claims19
An article conveyance device in the form of an air mover for producing a stream of air moving along a guide surface for the purpose of conveying web or other sheet material longitudinally along a path which follows the guide surface, comprising a body having first and second parts, and having means for conveying pressurized air;
- adjacent first faces of said first and second parts comprising said guide surface, each of said parts having a second face which adjoins said first face, said second faces having complementary portions which are sealingly in engagement with each other, at least one of said second faces having a recess which defines with the other of said second faces a slot, said slot extending from said pressurized air conveying means to said guide surface, so that pressurized air is supplied via said slot to said guide surface for applying pressure to move a web or other sheet material longitudinally along a path which follows said guide surface.
An article conveyance apparatus having a plurality of air movers for producing a stream of air moving along a guide surface for the purpose of conveying web or other sheet material longitudinally along a path which follows the guide surfaces, each of said air movers comprising a body having first and second parts, and having means for conveying pressurized air;
- adjacent first faces of said first and second parts comprising said guide surface, each of said parts having a second face which adjoins said first face, said second faces having complementary portions which are sealingly in engagement with each other, at least one of said second faces having a recess which defines with the other of said second faces a slot, said slot extending from said pressurized air conveying means to said guide surface, so that pressurized air is supplied via said slot to said guide surface for applying pressure to move a web or other sheet material longitudinally along a path which follows said guide surface.
Dependencies are inferred from the claim text.