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Heater block for injection molding with removable heat conductive member in groove in heater block

  • US 5,539,857 A
  • Filed: 01/24/1994
  • Issued: 07/23/1996
  • Est. Priority Date: 01/24/1994
  • Status: Expired due to Term
First Claim
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1. In combination for use in injecting a fluid into a mold,a heating block made from a heat conductive material,a heater,an externally disposed groove in the heating block for receiving the heater and for generating heat upon the passage of an electrical current through the heater,first means disposed in the groove in enveloping relationship to the heater and in a snug relationship with the groove for transferring heat from the heater to the heating block, the first means being removable with the heater from the heater groove without affecting the disposition of the heating block, the first means including a pair of abutting members disposed externally in the groove, the abutting members defining a hole in the abutting relationship for receiving the heater,second means in the heating block for retaining the first means and the heater in the heating block, anda passage in the heating block for a flow of the fluid through the heating block into the mold and for the heating of the fluid by the heater during such flow to obtain the production of an object having the configuration of the mold upon the solidification of the fluid in the mold,the second means being disposed at spaced intervals along the first means and constituting deformable stakes extending from the heating block over the first means.

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