Extrusion profile
First Claim
1. An extrusion profile, comprising at least one internal support structure having at least three generally planar support walls connected to each other, at least two of said support walls aligned in a converging orientation to form a generally triangular shape in cross-section.
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Accused Products
Abstract
An extrusion profile has internal support structures in the form of walls that are configured with respect to each other to form a generally triangular shape in cross-section. The extrusion profile can have exterior walls enclosing a generally polygonal interior space, and interior walls extending from inner surfaces of the exterior walls. The interior walls can cooperate with each other and/or with the exterior walls to form the generally triangular support structures. The support structures can increase the load bearing capacity of the extrusion profile both during manufacture, to improve product quality and/or processing speed, and during post-manufacture use of the extrusion.
37 Citations
16 Claims
- 1. An extrusion profile, comprising at least one internal support structure having at least three generally planar support walls connected to each other, at least two of said support walls aligned in a converging orientation to form a generally triangular shape in cross-section.
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10. A die for extruding an extrusion profile, comprising:
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a) a plurality of generally straight extrusion slots including peripheral slots and internal slots;
b) the peripheral slot adjoining each other end-to-end to form a generally polygonal shape in cross-section;
c) the internal slots disposed generally within the polygonal shape; and
d) at least one of the internal slots adjoining at least two other ones of the extrusion slots and being obliquely oriented relative thereto to form a generally triangular shape in cross-section. - View Dependent Claims (12)
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14. A method of manufacturing an extrusion profile, comprising:
a) extruding a liquified plastic through a die, the die having a plurality of extrusion slots for forming adjoining walls of the extrusion profile, the walls including exterior walls and interior support walls, at least one of the interior walls and at least two other ones of the support walls being oriented to provide an internal support structure being generally triangular in cross-section.
Specification