Class B21H : MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
Subclass 1/12: Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) rings of restricted axial length (extending closed shapes of metal bands by simultaneous rolling at two or more zones B21B 5/00) rings for ball or roller bearings
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12110926 | Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway | Dec 04, 23 | Oct 08, 24 | thyssenkrupp rothe erde Germany GmbH; THYSSENKRUPP AG; |
| 11873864 | Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway | Nov 26, 20 | Jan 16, 24 | thyssenkrupp rothe erde Germany GmbH; THYSSENKRUPP AG; |
| 10882097 | Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine | Mar 08, 19 | Jan 05, 21 | SMS GROUP GMBH |
| 10870144 | Ring rolling device with axially fixed rolling bearings | Apr 13, 16 | Dec 22, 20 | Hatebur Umformmaschinen AG |
| 10722933 | Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine | Jan 31, 17 | Jul 28, 20 | SMS GROUP GMBH |
| 10632524 | Method for processing precision forging of bearing ring | May 25, 18 | Apr 28, 20 | Shanghai Dianji University |
| 10583475 | Method for manufacturing ring-shaped member and manufacturing apparatus for same | Aug 20, 15 | Mar 10, 20 | NSK LTD. |
| 10518316 | Process for manufacturing a near perfect round ball bearing with a hole there through | May 24, 18 | Dec 31, 19 | Not available |
| 10471555 | Method for manufacturing annular member | Nov 26, 14 | Nov 12, 19 | NSK Ltd. |
| 10413963 | Ring rolling device | Feb 25, 14 | Sep 17, 19 | Hatebur Umformmaschinen AG |
| 10272485 | Method for manufacturing ring-shaped member | Feb 12, 15 | Apr 30, 19 | NSK LTD. |
| 10072711 | Method for producing a composite rolling bearing | Sep 06, 17 | Sep 11, 18 | Schaeffler Technologies AG & Co. KG |
| 9919390 | Combined ring rolling method for spherical valve body | Sep 18, 15 | Mar 20, 18 | WUHAN UNIVERSITY OF TECHNOLOGY |
| 9889493 | Wheel bearing device with a clearance formed between the inner race and the hub wheel | Mar 09, 09 | Feb 13, 18 | NTN CORPORATION |
| 9784320 | Method for producing a composite rolling bearing | Jun 25, 12 | Oct 10, 17 | SCHAEFFLER TECHNOLOGIES AG & CO. KG |
| 7628049 | Method and apparatus for manufacturing a battery terminal with undercut rings | Mar 24, 06 | Dec 08, 09 | TULIP MOLDED PLASTICS CORPORATION |
| 7334444 | Method for producing a gearwheel | Dec 13, 04 | Feb 26, 08 | MIBA SINTER AUSTRIA GMBH |
| 7191626 | Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece | Jun 07, 05 | Mar 20, 07 | Profiroll Technologies GmbH |
| 5829292 | Rolling annular workpieces | May 27, 97 | Nov 03, 98 | HOERBIGER ANTRIEBSTECHNIK GMBH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0101,959 | Ring rolling machine with device for ring manipulation | Feb 23, 21 | Mar 30, 23 | SMS group GMBH |
| 2019/0201,969 | RING-ROLLING MACHINE AND METHOD FOR LIFTING AND LOWERING THE MANDREL ROLL OF A RING-ROLLING MACHINE | Mar 08, 19 | Jul 04, 19 | SMS GROUP GMBH |
| 2018/0117,663 | Ring Rolling Device with Axially Fixed Rolling Bearings | Apr 13, 16 | May 03, 18 | Not available |
| 2017/0225,222 | RING-ROLLING MACHINE AND METHOD FOR LIFTING AND LOWERING THE MANDREL ROLL OF A RING-ROLLING MACHINE | Jan 31, 17 | Aug 10, 17 | SMS GROUP GMBH |
| 2016/0368,041 | Rolling Processing Device and Rolling Processing Method | Mar 09, 15 | Dec 22, 16 | NSK LTD. |
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