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

Image Number 3 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
Sensing device and electronic apparatus
Autobrake and decel control built-in test equipment
Administrable compositions
Digital image processing device and processing method thereof
Motion control system and X-ray measurement apparatus
Shipping container explosives and contraband detection system using nuclear quadrupole resonance
Remotely provisioned wireless proxy
  Randomly Featured Patents
Contact structure having silicide layers, semiconductor device employing the same, and methods of fabricating the contact structure and semiconductor device
Conductive film and method for preparing the same
Bumper beam for automobile
Delay line having coupled cavities for a traveling-wave tube and a traveling-wave tube equipped with said line
Zoom lens and imaging device
Combustor liner helical cooling apparatus
Bearing arrangement
Extensible browser platform for web applications
M-shaped boat hull
Stopping agents for enzyme reactions of dehydrogenase systems