A catheter is made by coextruding first and second molten polymers, wherein the second molten polymer forms a flexible inner core and the first molten polymer forms exactly two bands on opposite sides of the inner core. The inner core is braided, and a third molten polymer extruded onto the braid to form a flexible jacket that encloses the braid, the bands and the inner core. The bands are more rigid than the inner core, and they provide preferential in-plane bending.

In a system and method for making a capped structure having a variegated cap layer a layer of cap materials is applied to a substrate and pin stripes are applied onto the cap layer through an extrusion die. After these materials exit the extrusion die they are passed through a single opening in a die plate to create a capped structure having a variegated appearance. This capped structure has a smooth surface that enables an embosser to create a consistent embossing pattern on the entire surface.

An apparatus for extruding a jacket and/or insulative material onto an extruded product with one or more longitudinal stripes incorporated onto the surface of said extruded product comprising a body, a primary feed conduit for conveying a primary extrusion material, a striping die, a secondary feed conduit for conveying a secondary extrusion material, a striping die adapter, a striping feed conduit extending through the striping die adapter for conveying striping extrusion material. The striping die adapter may also include a thermocouple for maintaining the viscosity of the striping extrusion material and a thermocouple for monitoring the temperature of said striping die adapter. The striping die includes one or more striping extrusion outlets for conveying striping extrusion material onto the extruded product. The striping die may also include a wishbone-shaped trough for delivering equal amounts of striping extrusion material to said extrusion outlets for extrusion onto the product.

A method for manufacturing a bracelet made of synthetic material for watches or jewellery including at least one strand, the method including a step of making, by moulding or extrusion, a band of synthetic material intended to form at least one strand, the method being wherein it then includes a step of chemical mechanical polishing the band. A bracelet made of synthetic material for watches or jewellery includes at least one strand formed of an extruded or injection moulded band, wherein at least one strand has a roughness Rp less than or equal to 3 m and preferably less than or equal to 2 m.

A method for manufacturing a plurality of labeling bands includes extruding an elastic material, co-extruding a label material with the elastic material, curing the elastic material and the label material, and locating a plurality of demarcations at intervals along the length of the tube to define the plurality of labeling bands. Co-extruding the label material with the elastic material includes forming a tube having an outer surface, an inner surface and a length, so that the label material forms a stripe on the outer surface. In another aspect, an article of manufacture includes an endless band of a first elastic material and a label of a second material embedded into an outer surface of the endless band. The endless band includes the outer surface, an inner surface and first and second opposed perimeter edges, each of the first and second opposed perimeter edges having a common unstretched perimeter dimension.

A method for manufacturing a plurality of labeling bands includes extruding an elastic material, co-extruding a label material with the elastic material, curing the elastic material and the label material, and locating a plurality of demarcations at intervals along the length of the tube to define the plurality of labeling bands. Co-extruding the label material with the elastic material includes forming a tube having an outer surface, an inner surface and a length, so that the label material forms a stripe on the outer surface. In another aspect, an article of manufacture includes an endless band of a first elastic material and a label of a second material embedded into an outer surface of the endless band. The endless band includes the outer surface, an inner surface and first and second opposed perimeter edges, each of the first and second opposed perimeter edges having a common unstretched perimeter dimension.

A fluid conveying apparatus is disclosed. The apparatus comprises a circular tubing. The circular tubing further comprises an internal surface and an external surface. The internal surface encloses a circular passage for conveying a fluid and the external surface is disposed concentric to the internal surface, and distal to the circular passage. Further, the circular tubing comprises a plurality of channels disposed along a periphery of the circular tubing sandwiched between the internal surface and the external surface.

A fluid conveying apparatus is disclosed. The apparatus comprises a circular tubing. The circular tubing further comprises an internal surface and an external surface. The internal surface encloses a circular passage for conveying a fluid and the external surface is disposed concentric to the internal surface, and distal to the circular passage. Further, the circular tubing comprises a plurality of channels disposed along a periphery of the circular tubing sandwiched between the internal surface and the external surface.

A catheter is made by coextruding first and second molten polymers, wherein the second molten polymer forms a flexible inner core and the first molten polymer forms exactly two bands on opposite sides of the inner core. The inner core is braided, and a third molten polymer extruded onto the braid to form a flexible jacket that encloses the braid, the bands and the inner core. The bands are more rigid than the inner core, and they provide preferential in-plane bending.

A catheter is made by coextruding first and second molten polymers, wherein the second molten polymer forms a flexible inner core and the first molten polymer forms exactly two bands on opposite sides of the inner core. The inner core is braided, and a third molten polymer extruded onto the braid to form a flexible jacket that encloses the braid, the bands and the inner core. The bands are more rigid than the inner core, and they provide preferential in-plane bending.