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Injection molding parts with fastener elements

  • US 6,187,247 B1
  • Filed: 05/13/1998
  • Issued: 02/13/2001
  • Est. Priority Date: 05/13/1998
  • Status: Expired due to Fees
First Claim
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1. An injection mold for producing a product having an array of fastener elements integrally molded with and extending from a first side of a base, the mold having a first mold surface penetrated by an array of fastener cavities, the mold comprising:

  • a series of ejector pins distributed along the extent of the array of fastener cavities, the pins adapted to extend through the first mold surface to eject the product; and

    an ejector pin actuator constructed and arranged to move the pins in a predetermined progressive sequence to push the molded product away from the first mold surface in the manner to pull the fastener elements from the fastener cavities progressively across the array of fastener cavities.

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