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US 2011/0209810 A1Published application
Reclosable fastener riser/spacer, and methods of constructing and utilizing same
OwnerChristopher S. Auttersoninventor
Life of this patent
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Abstract
A method for fabricating a plastic spacer/riser to increase useable height of a reclosable fastening system, such as 3M™ Dual Lock™ or Velcro® hook and loop products. The spacer/riser is adapted to be held in place on an external substrate with hot-melt glue, sonic welds, pressure-sensitive adhesives, acrylic foam tape, or screws.
Claims20
A method of fabricating a riser/spacer device, comprising the steps of:
- softening plastic in an extruder as said plastic is forced though said extruder by an extruder screw toward a die;
- shaping said softened plastic in said die;
- holding the shape of said plastic with shaping tooling and guides as said softened shaped plastic exits said die in a continuous length until said softened shaped plastic is cooled and set to a required shape and dimensions of said riser/spacer device;
- and
- maintaining the size of the plastic riser/spacer device by a ratio between the amount of plastic being forced through said die and the speed of a haul off apparatus pulling the plastic riser/spacer device away from said die and through shaping tooling and guides.
2 more elements
Dependencies are inferred from the claim text.