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US 6,663,375 B1Granted
Dual flexible lip extrusion apparatus with pivoting actuation member
AssigneeExtrusion Dies, Inc.
InventorJohn A. Ulcej
Life of this patent
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Abstract
An extrusion apparatus includes first and second die body portions each having a main body and a lip interconnected with the main body wherein the die body portions are joined such that a die outlet is formed between the lips. The apparatus also includes at least one pivoting link coupled to one of the lips and a sliding member coupled to the pivoting link whereby movement of the sliding member causes the pivoting link to pivot and move the one lip relative to the other lip.
Claims34
An extrusion die, comprising:
- a pair of die body portions each having a lip and wherein one of the lips is moveable toward and away from the other lip about a hinge portion coupled to a main body of one of the die body portions;
- and
- a pivoting member coupled to the one lip and a sliding member engaged with the pivoting member and movable along a first path to cause the pivoting member to pivot and move the lip along a second path transverse to the first path.
An extrusion die, comprising:
- a pair of die body portions each having a lip and wherein one of the lips is moveable toward and away from the other lip about a hinge portion coupled to a main body of one of the die body portions;
- and
- a plurality of pivoting link assemblies coupled to the one lip and a sliding member engaged with the pivoting link assemblies and movable along a first path to cause the pivoting link assemblies to pivot and move the lip along a second path transverse to the first path.
An extrusion die, comprising:
- a pair of die body portions each having a lip and wherein one of the lips is moveable toward and away from the other lip about a hinge portion coupled to a main body of one of the die body portions;
- a plurality of pivoting links each coupled to the one lip;
- a channel-shaped sliding member having a recess therein and movable along a first path;
- a plurality of anchor members each having a first end coupled to an end of an associated one of the pivoting links and further coupled to the sliding member within the recess, each of the anchor members further it having a second end coupled to the one die body portion;
- and
- a movement apparatus operable to move the sliding member along the first path and cause the pivoting links to pivot and move the lip along a second path transverse to the first path.
3 more elements
Dependencies are inferred from the claim text.