Resources Contact Us Home
Apparatus for the production of polyurethane material with a cleaning member having a filler feeding channel and an inclined front surface

Image Number 6 for United States Patent #6502978.

A process and an apparatus for the production of a polyurethane mixture is described. The apparatus comprises a high-pressure mixing device provided with a mixing chamber opening onto a side of a discharge duct.An elongated cleaning member is reciprocable inside the duct and is provided with a longitudinal channel for feeding a fluidized reinforcing material, for example reinforcing fibers or a reinforcing material in powder or granulate form, to be blended with the polyurethane mixture flowing into the discharge duct. The feeding channel for the reinforcing material terminates at the front end of the cleaning member, at a point where the flow of reinforcing material impinges the polyurethane mixture which emerges from the mixing chamber under high turbulence conditions. Blowing nozzles are provided to generate air jets for repeatedly deviating the flow of blended polyurethane mixture and reinforcing material flowing out from the discharge duct.

  Recently Added Patents
Plastic floor-wall transition methods, materials, and apparatus
Method and system for dynamically representing distributed information
Code conversion apparatus, code conversion method, and computer product
Apparatus for touch screen avionic device
Method of measuring a displacement amount for an automobile suspension assembly
Printing apparatus
  Randomly Featured Patents
System clock generating circuit for a semiconductor device
Fluid flow meter with reduced orientation sensitivity
Fire retardant compositions and methods for their preparation and use
Method for refining (meth)acrylic acid
Workholder for an automatic sewing machine
De-reeler for tape holding parts
Molded article work piece application method
Reflector antenna system including a phased array antenna operable in multiple modes and related methods
Pen stand
Irreversible peptide ligands for bombesin receptors, their use, and process for making the same