Class B21H : MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
Subclass 3/00: 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)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10710145 | Positioning and clamping system for thread rolling | Jul 17, 19 | Jul 14, 20 | Vey Manufacturing Technologies LLC |
| 5379622 | Method of forming helical splines with stoppers on a rotary shaft, and rolling tools for practicing the method | Sep 14, 93 | Jan 10, 95 | MITSUBISHI DENKI KABUSHIKI KAISHA, O S G Corporation, |
| 5135810 | Method of machining and structure of machined pinion gear | Mar 11, 91 | Aug 04, 92 | DANA AUTOMOTIVE SYSTEMS GROUP, LLC |
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