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
Taxi cab key chain
Apparatus and method of preventing signal delay in display device
Storage apparatus and storage apparatus management method performing data I/O processing using a plurality of microprocessors
Proximity-based mobile message delivery
System and method for managing investment funds
Equipment to facilitate money transfers into bank accounts
Auto-aligning spectroscopy system
  Randomly Featured Patents
Maintenance of optimal orientation in F.sub.2.sup.+ color center lasers
Safety bench pressing apparatus
Tractor hitch control system
Column protector deterring unauthorized climbing access by human being
Method and apparatus for communicating messages of varying protocols over a single communications network
Aqueous silicone dispersion capable of being cross-linked into an adhesive elastomer using a condensation reaction mechanism
Brightness controlled organic light emitting display and method of driving the same
Automatic detection of per-unit location constraints
Electro-optical device with cover having a first wall indentation for accommodating control electronics
RF signal repeater, mobile unit position determination system using the RF signal repeater, and method of communication therefor