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US 2019/0240710 A1Published application
System, apparatus and method for manufacturing braid reinforced tubing
AssigneePruven Technologies, LLC
InventorJames Prue
Life of this patent
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Abstract
An extrusion crosshead assembly for manufacturing braid reinforced tubing includes a body having a bore housing an outer deflector, an outer spline concentrically mounted within a bore of the outer deflector, an inner spline concentrically mounted within the outer spline and forming a plenum therebetween, an inner deflector concentrically mounted within a bore of the inner spline, and a hollow tip body mounted concentrically within a bore of the inner deflector.
Claims20
An extrusion assembly, comprising:
- a head having an outer spline rotatable in a first direction and an inner spline mounted concentrically with the outer spline and rotatable in a second direction opposite the first direction, the outer spline and the inner spline defining a plenum;
- and
- an extruder device fluidly connected to the head and being configured to supply a molten braid material to plenum;
- wherein the inner spline and the outer spline are operable to form an overlapping braid from the molten braid material.
1 more element
A method of manufacturing braid-reinforced tubing, comprising the steps of:
- rotating an outer spline in a first direction;
- rotating an inner spline in a second direction opposite the first direction, the inner spline being concentrically mounted within the outer spline;
- and
- supplying a molten material to a plenum formed between a distal end of the outer spine and a distal end of the inner spline;
- wherein the molten material exits the plenum through flow channels in the distal ends of the outer spline and the inner spline to form an overlapping braid pattern.
2 more elements
An extrusion assembly, comprising:
- a head having:
- an outer spline rotatable in a first direction;
- an inner spline mounted concentrically with the outer spline and rotatable in a second direction opposite the first direction, the outer spline and the inner spline defining a plenum therebetween;
- and
- an outer deflector having a throughbore for receiving the inner spline and the outer spline
- a first extruder device fluidly connected to the head and being configured to supply a first molten material to plenum;
- and
- a second extruder device fluidly connected to the head and being configured to supply a second molten material to the outer deflector;
- wherein the inner spline and the outer spline are operable to form an overlapping braid from the molten braid material and apply the overlapping braid over a tube having a lumen;
- and
- wherein the outer deflector is operable to form an outer layer over the overlapping braid.
8 more elements
Dependencies are inferred from the claim text.