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US 6,213,752 B1Granted
Vacuum extrusion system and method
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorRobert L. Sadinski
Life of this patent
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AssigneeOwens Corning Fiberglas Technology, Inc.
InventorRobert L. Sadinski
Estimating the term…
A vacuum extrusion line of the horizontal barometric leg type includes a vacuum chamber 10 having an extrusion die 18 at one end and a water baffle immersion cooler 20 at the other end for extracting the extrudate to atmosphere, extrudate shaping and sizing equipment downstream of the die 18, a large diameter fixed bulkhead 16 a the die 18, and first 44 and second 46 large diameter movable sections surrounding the shaping and sizing equipment, a smaller fixed section of the chamber. The first section sealing against the second section and the fixed section and telescoping over the fixed section to form a gap 68 with the second section being movable within the limits of the gap 68. The second section also seals against the large diameter fixed bulkhead 16. In this manner the downstream equipment can be fully exposed by movement of one or both movable sections and adequate volume and spatial working environment is provided for large through-put. A simplified lock mechanism facilitates the quick opening and closing of the chamber.
A vacuum extrusion line comprising a vacuum chamber having a die at one end inside the chamber and a water baffle immersion cooler at the other end for extracting the extrudate to atmosphere, and downstream extrudate shaping and sizing equipment all inside the chamber, and a chamber sealing means operative to open the chamber fully laterally selectively to expose said die and any of said downstream equipment, wherein said chamber sealing means comprises at least two movable sections of said chamber that surround said die and downstream equipment when closed.
A vacuum extrusion line comprising a vacuum chamber having a die at one end inside the chamber and a water baffle immersion cooler at the other end for extracting the extrudate to atmosphere, and downstream extrudate shaping and sizing equipment all inside the chamber, said chamber comprising a fixed section, and at least two movable sections which can be relatively positioned selectively fully to expose any of said die and down stream equipment to permit quick access thereto.
A vacuum extrusion line comprising a vacuum chamber having a die at one end inside the chamber and a water baffle immersion cooler at the other end for extracting the extrudate to atmosphere, and downstream equipment for extrudate shaping and sizing all inside the chamber, said chamber comprising a fixed section and at least two movable sections, one movable section which telescopes over said fixed section to form a gap between movable sections, with the other movable section then being movable within the limits of the gap selectively fully to expose the die and downstream equipment.
Dependencies are inferred from the claim text.