Class B21D : WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING
Subclass 3/12: Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situE21B) by stretching with or without twisting (by twisting only B21D 11/14)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12109602 | Stretching machine for extruded profiles | Jun 09, 20 | Oct 08, 24 | Danieli & C. Officine Meccaniche S.p.A. |
| 11724299 | Method for straightening of a FeCrAl alloy tube | Dec 21, 18 | Aug 15, 23 | Sandvik Intellectual Property AB |
| 11541441 | Transport system for a wire or a sheet and method for delivering a wire or a sheet | Mar 26, 19 | Jan 03, 23 | SANDVIK MATERIALS TECHNOLOGY DEUTSCHLAND GMBH |
| 11072010 | Method and device for straightening a workpiece | Apr 10, 17 | Jul 27, 21 | MOST Technik GmbH |
| 10137487 | Apparatus and method for manufacturing blade | Oct 29, 15 | Nov 27, 18 | KOREA INSTITUTE OF MACHINERY & MATERIALS |
| 10132241 | Method of producing suspension for a structure in a turbojet engine using a hyperstatic trellis with pre-stressed link elements | Jul 01, 14 | Nov 20, 18 | SAFRAN AIRCRAFT ENGINES |
| 9751120 | Method and apparatus for straightening metal bands | Dec 31, 15 | Sep 05, 17 | Not available |
| 9731337 | Part correcting device for automobile part | Oct 23, 13 | Aug 15, 17 | HYUNDAI MOTOR COMPANY |
| 9133539 | Method and equipment for shaping a cast component | Oct 01, 12 | Sep 15, 15 | ROLLS-ROYCE PLC |
| 8834653 | Hot stretch straightening of high strength age hardened metallic form and straightened age hardened metallic form | Jul 02, 13 | Sep 16, 14 | ATI PROPERTIES, INC. |
| 8499605 | Hot stretch straightening of high strength α/β processed titanium | Jul 28, 10 | Aug 06, 13 | ATI PROPERTIES, INC. |
| 8429944 | Method of making wire support | Jun 08, 09 | Apr 30, 13 | Not available |
| 8182930 | Twisted wire and method of producing twisted wire | Mar 24, 09 | May 22, 12 | YAZAKI CORPORATION |
| 8096158 | Sampling apparatus and method | Mar 31, 06 | Jan 17, 12 | PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
| 8006529 | Methods for manufacturing coil springs | Sep 12, 03 | Aug 30, 11 | DREAMWELL, LTD. |
| 7958762 | Apparatus and method for forming straight tubes from coiled tubing | Jul 19, 08 | Jun 14, 11 | Not available |
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