Patent ID: 7064303
Filing Date: 2006-06-20
Classification: B29C,H05B

Abstract:
1. A bendable tubular heater for use in an injection molding component, the heater comprising: a flexible heating element wire having two ends; two electrical connectors, each one in electrical connection to one of the two ends; a continuous tubular first metallic sheath, said first metallic sheath having an intermediate portion and two ends, the heating element wire extending through the intermediate portion of the metallic sheath; insulative material surrounding and supporting the heating element wire within said first metallic sheath; a second metallic sheath having a radial thickness and formed of at least one swaged helically wound coil, said shealth encasing and engaging the first metallic sheath, whereby a closed helical slit extends entirely thru the radial thickness of the second metallic sheath providing improved bendability.