B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/74 (2006.01) B29C 45/27 (2006.01) B29C 45/30 (2006.01)
Patent
CA 2052595
Injection molding apparatus wherein a heated probe extends into a well in a cavity plate having a generally spherical forward end. The forward end of the heated probe has at least one conical tip which extends outwardly at an angle into a conical recess leading to the gate. Each conical recess has an included angle of at least 90° and the conical recess and conical tip extend outward along the same central axis at an angle to the longitudinal axis of the probe. This allows the tip to extend fully into the recess without interfering with withdrawal for cleaning or repair. The included angle of the conical tip is substantially less than the included angle of the conical recess which gradually accelerates the flow of melt as it approaches the gate.
4437667 Canada Inc.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Gellert Jobst Ulrich
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