Vacuum commutation apparatus and methods
AssigneeCurt G. Joa, Inc.
InventorsSUDEEP INGOLE, Jon Allen Pelland
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Abstract
The present invention provides a method and apparatus for transporting a discrete element. A preferably rotatably driven vacuum commutation zone (or internal vacuum manifold), preferably internal to a preferably independently driven porous vacuum roll or drum is disclosed. The vacuum manifold applies vacuum through pores in the driven porous vacuum roll or puck in order to hold material against an external surface of the vacuum roll or puck. By independently controlling the vacuum commutation zone and the driven porous surface, unique motion profiles of the vacuum commutation zone relative to the driven porous surface can be provided. Micro vacuum commutation port structures are also disclosed.
Claims5
An article carrying surface comprising a plurality of voids, said voids individually comprising a surface area of between about 7×10−6 square inches and 1.77×10−4 square inches, said voids coupled to a source of vacuum.
An apparatus for carrying discrete articles comprising:
- a puck structure,
- said puck structure comprising a plurality of voids, said voids individually comprising a surface area of between about 7×10−6 square inches and 1.77×10−4 square inches, said voids coupled to a source of vacuum.
A system for processing a web, the system comprising:
- a driven vacuum commutation structure;
- a driven article carrying surface, said driven article carrying surface driven independently of said driven vacuum commutation structure;
- said driven vacuum commutation structure communicatively coupled to at least a portion of said driven article carrying surface, said driven article carrying surface comprising a plurality of voids, said voids individually comprising a surface area of between about 7×10−6 square inches and 1.77×10−4 square inches, said voids coupled to a source of vacuum.
Dependencies are inferred from the claim text.