Resources Contact Us Home
Step air foil

Image Number 7 for United States Patent #7530179.

Step air foil particularly for one-sided flotation of a running web, and web dryer incorporating the same. The air foil includes two discharge slots which allow for increased draw down force, which flattens machine direction wrinkles in a floating web. The air foil includes a primary discharge slot and a second discharge slot spaced from and stepped down from the primary discharge slot, a first web support surface between the primary discharge slot and the secondary discharge slot, and a second web support surface downstream of the secondary discharge slot in the direction of web travel. The air foil is in communication with an air supply which provides a supply of air that is uniformly distributed to the primary and secondary slots. Air discharged from the primary slot is gathered into the air stream of the secondary slot and creates an increased air cushion to provide greater support to the moving web and thereby remove machine direction web wrinkles caused by higher tension in light weight webs.

  Recently Added Patents
Permutational memory cells
Method and apparatus for content-aware resizing of data chunks for replication
Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium
Software management system for network data processing systems
Security patch update processor
Communication system and time synchronization method
Aluminum galvanic cell
  Randomly Featured Patents
Semiconductor device
Glazing bead for use with a window frame extrusion
Tanker reconstruction
Semiconductor device and a method for manufacturing the same
Monoblock hot tops with aligned fibrous material
Optical disk apparatus and recording and reproducing method of optical recording medium
Process for making crystalline siliceous materials
Acoustical insulating web
Bulk charge transfer semiconductor device
Method and apparatus for removing gas from interior of hollow-fiber permeability apparatus