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
Leg stretching device
Quantifying the risks of applications for mobile devices
Performance metrics processing for anticipating unavailability
Ionic compound, anti-static pressure-sensitive adhesive and polarizer comprising the same
System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS
Verification of a portable consumer device in an offline environment
Handover signaling in wireless networks
  Randomly Featured Patents
Pressurized-water reactor installation
Exercise apparatus
Birdcage attachment
Sound proof encapsulated engine, especially an internal combustion engine
Power supply system
Formation evaluation while drilling
Color suppressed anti-reflective glass
Sawtooth wave generating apparatus, a method of generating sawtooth wave, a constant current circuit, and a method of adjusting amount of current from the same
Methods and systems for user interfaces and constraint handling in configuration software
Apparatus for electrochemical purification of contaminated liquids