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
Compounds and their salts specific to the PPAR receptors and the EGF receptors and their use in the medical field
Method for eliciting an immune response to human telomerase reverse transcriptase
ActRIIB proteins and variants and uses therefore relating to utrophin induction for muscular dystrophy therapy
Interlock apparatus for vacuum circuit breaker
Process for preparing red cocoa ingredients, red chocolate, and food products
Automated synchronization of design features in disparate code components using type differencing
Radio frequency splitter
  Randomly Featured Patents
Ropes of single-wall carbon nanotubes
Apparatus for assembling bearing and stationary drum
Discharge tube, ferrule, lighting device, display device and television receiver
Printed circuit board and manufacturing method therefor
Coating continuous filaments
Denture attachment system
Robustness and notifications in travel planning system
Method, system, and article of manufacture for reserving memory
Semiconductor device and method of fabricating the same
Process for the preparation of flexible polyester urethane foams