| Patent Number |
Title Of Patent |
Date Issued |
| 7096706 |
Drawing apparatus and method of operating same |
August 29, 2006 |
| A single carriage of the drawing apparatus for pulling a continuous metal workpiece through a drawing die is displaceable back and forth by a linear electronic motor drive. A coil forms a supply upstream of the die which can pay off a length of the workpiece to form a loop adapted to be |
| 6976377 |
Method of and apparatus for producing tubes of metal |
December 20, 2005 |
| In the planetary skew rolling blooms to form seamless metal tubing or pipe the internal tool is retracted at the leading and/or trailing end of the tubular bloom to allow the rolls to seal the end or ends and prevent coolant from entering the rolled tubing or bloom. The internal tool is |
| 6715332 |
Method of drawing metal workpieces and drawing unit for a drawing machine |
April 6, 2004 |
| A drawing apparatus for drawing metal and articles has at last one drawing carriage and a linear motor complex which determines the pattern of movement of that carriage and hence of the drawing operation. |
| 6688152 |
Modular drawing apparatus and drawing |
February 10, 2004 |
| A drawing apparatus is assembled from modular units utilizing modular path-forming members and holder modules which can carry the drawing die and drawing carriages shiftable on the guide modules. The drives for the carriages are individual linear motors whose stationary components are th |
| 6684675 |
Drawing machine |
February 3, 2004 |
| An apparatus for drawing a strand has a frame extending in a longitudinal direction, a pair of substantially identical linear motors each having a primary fixed on the frame, and a movable secondary slidable along the respective primary in the direction. The primaries extend parallel to |
