Class B21H : MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
Subclass 3/06: Making helical bodies or bodies having parts of helical shape (helical gears B21H 5/00; bending strip or the like helically B21D 11/06; forming tubes or tube walls into helical shape B21D 15/04) external screw-threads Making by means of profiled members other than rolls, e.g. jaws, moved longitudinally or curvilinearly with respect to each other
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11779999 | Method for producing a connecting element, connecting element, and rolling tool | Nov 19, 18 | Oct 10, 23 | Arnold Umformtechnik GmbH & Co. KG |
| 11739784 | Method for integrally forming a stop flange on a self-tapping screw by threading dies | Oct 29, 20 | Aug 29, 23 | Not available |
| 11407023 | Cold rolling machine and method for producing a profile on a workpiece | May 29, 19 | Aug 09, 22 | OSG EX-CELL-O GMBH |
| 11376651 | Floatingly mounted multi-piece rolling tool, and rolling machine | Apr 05, 18 | Jul 05, 22 | KAMAX HOLDING GMBH & CO. KG |
| 11006990 | Method of making a self-cleaning self-cutting implant | Feb 07, 19 | May 18, 21 | EVOLLUTION IP HOLDINGS, INC. |
| 11009834 | Diamond-polished applique for horology | Feb 11, 19 | May 18, 21 | Nivarox-Far SA |
| 10828691 | Roll forming machine with reciprocating dies | Jan 29, 18 | Nov 10, 20 | Illinois Tool Works Inc. |
| 10710145 | Positioning and clamping system for thread rolling | Jul 17, 19 | Jul 14, 20 | Vey Manufacturing Technologies LLC |
| 10610920 | Multi-station reciprocating die roll forming machine | Mar 24, 16 | Apr 07, 20 | Illinois Tool Works Inc. |
| 10519995 | Dual-threaded screw structure | May 27, 16 | Dec 31, 19 | FORM ROLL TECH CO., LTD. |
| 10369618 | Method and apparatus for cold forming thread rolling dies | Sep 11, 13 | Aug 06, 19 | Illinois Tool Works Inc. |
| 10350670 | Method for making a dual threaded bolt roll forming die | Oct 06, 16 | Jul 16, 19 | Not available |
| 10337548 | Crack-proof screw | Mar 22, 17 | Jul 02, 19 | Kwantex Research Inc. |
| 10328483 | Method and apparatus for cold forming thread rolling dies | Sep 11, 13 | Jun 25, 19 | Illinois Tool Works Inc. |
| 10315244 | Method of forming a die for roll forming a dual threaded bolt | Oct 06, 16 | Jun 11, 19 | Not available |
| 10232427 | Method for making a die for roll forming a dual threaded bolt | Oct 06, 16 | Mar 19, 19 | Not available |
| 10130988 | Form-rolling die structure and form-rolling method for compound screw | Aug 19, 12 | Nov 20, 18 | NejiLaw inc. |
| 10118214 | Thread-rolling flat die for threaded fastener, and thread-rolling method | Apr 27, 16 | Nov 06, 18 | Sanshu Co., Ltd. |
| 9950380 | Method for forming a dual threaded die | Mar 12, 14 | Apr 24, 18 | Not available |
| 9919355 | Roll forming machine with reciprocating dies | Mar 12, 14 | Mar 20, 18 | ILLINOIS TOOL WORKS INC. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0054,284 | Tooling for Cold Forming Operations | Aug 18, 22 | Feb 23, 23 | Not available |
| 2021/0245,232 | COLD ROLLING MACHINE AND METHOD FOR PRODUCING A PROFILE ON A WORKPIECE | May 29, 19 | Aug 12, 21 | Not available |
| 2020/0061,693 | POSITIONING AND CLAMPING SYSTEM FOR THREAD ROLLING | Jul 17, 19 | Feb 27, 20 | Vey Manufacturing Technologies LLC |
| 2020/0055,110 | FLOATINGLY MOUNTED MULTI-PIECE ROLLING TOOL, AND ROLLING MACHINE | Apr 05, 18 | Feb 20, 20 | Not available |
| 2018/0333,766 | MULTI-STATION RECIPROCATING DIE ROLL FORMING MACHINE | Mar 24, 16 | Nov 22, 18 | Illinois Tool Works Inc. |
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