Injection molding apparatus having inter-manifold melt...

Details Injection molding apparatus having inter-manifold melt... Injection molding apparatus having inter-manifold melt...

B - Operations, Transporting

29

C

B29C 45/16 (2006.01) B29C 45/27 (2006.01)

Patent

CA 2219260

Injection molding apparatus for multi-layer molding two materials with different injection temperatures having an insulative air space extending between front and rear heated melt distribution manifolds. Heated nozzles extending from the front manifold each have a central melt channel and one or more annular melt channels extending around it. Melt transfer bushings each having a central melt bore extend across the air space to convey melt from the rear manifold to one of the melt channels in each heated nozzle. In one embodiment, each melt transfer bushing has a head portion which provides a spacer between the two- manifolds, and an elongated stem portion which extends through a bore through the front manifold to one of the heated nozzles. An air space around the stem portion provides thermal separation between the melt from the rear manifold and the front manifold which is at a higher temperature.

Affiliated with

Also associated with

Rating

Injection molding apparatus having inter-manifold melt... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Injection molding apparatus having inter-manifold melt..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molding apparatus having inter-manifold melt... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1396368