Resources Contact Us Home
Step air foil

Image Number 4 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
System for thermally controlling displays
PC secure video path
Primed stem cells and uses thereof to treat inflammatory conditions in joints
Porous polymeric resins
Nucleic acid sequences encoding secE/sec61-gamma subunits of protein translocation complexes
VGPU: a real time GPU emulator
Flavonoid dimers and methods of making and using such
  Randomly Featured Patents
Stressed reinforcing tendon and structure including such a tendon
Toner removal apparatus for electrographic printer
System and method for navigating a 3D graphical user interface
Systems and methods for running casing into wells drilled with dual-gradient mud systems
Toy with liquid-filled shell
Treatment control apparatus for water systems
Clothing and textile system
Apparatus for cooling a spindle bearing of a machine
Inhaler assistive device
Communication processing device and distance measurement method in communication processing device