Resources Contact Us Home
Valve pin cross over nozzle for stack mould

Image Number 2 for United States Patent #7287549.

According to the present invention, a cross over nozzle (10) is provided of two parts (22,24) which, when joined, define a housing (20) having a passage (30) extending therethrough, a tapered valve seat (50) extending about the passage and a value member (60) having a tapered valve head (62) disposed in the passage for engaging the valve seat. The two parts (64,66) are axially separable at an interface (68) extending through the valve seat/valve head. In order to open the valve, both valve parts are first joined and then moved together as one member in the same direction relative to the housing axially away from the valve seat. Similarly, the valve members are jointly moved into engagement with the valve seat before the cross over nozzle is separated. Accordingly, unlike the valve gate design, the valve interface between the two parts of the valve head isn't exposed to molten resin and therefore molten resin isn't trapped therebetween to cause a string upon opening.

  Recently Added Patents
Chain link
Output device, source apparatus, television set, system, output method, program, and recording medium
Area reduction for surface mount package chips
Laser marking of a card
Sparse network almanac
Solid-state image capture device and image capture apparatus
Fusing device to prevent overheating of a heating member and image forming apparatus having the same
  Randomly Featured Patents
Imaging apparatus
Frequency divider
Melt fabrication of foam articles
Cutting instrument for a root canal filler in dental treatment
Patterning systems using photomasks including shadowing elements therein
Constellation of chambers for distributing pneumatic pressure
Construction block
Dot sighting device
Mobile feeder
Oxidant flow field for solid polymer electrolyte fuel cell