Description
MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS (essentially from sheet metal B21D)
B21H
Technology
Stats
- 428 US PATENTS IN FORCE
- 104 US APPLICATIONS PENDING
- 554 Total Patent Owners
- 1,806 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 1/00 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) |
| 1/02 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) discs; disc wheels |
| 1/04 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) discs; disc wheels with rim, e.g. railway wheels |
| 1/06 | 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) |
| 1/08 | 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) railway wheel rims |
| 1/10 | 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) rims for pneumatic tyres |
| 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 |
| 1/14 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) balls, rollers, cone rollers, or like bodies |
| 1/16 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) balls, rollers, cone rollers, or like bodies for bearings |
| 1/18 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) cylinders, e.g. rolled transversely |
| 1/20 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) cylinders, e.g. rolled transversely rolled longitudinally |
| 1/22 | Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) characterised by use of rolls having circumferentially varying profile |
| 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) |
| 3/02 | 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 |
| 3/04 | 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 rolls |
| 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 |
| 3/08 | 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) internal screw-threads |
| 3/10 | 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) twist-drills; screw-taps |
| 3/12 | 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) articles with helicoidal surface |
| 5/00 | Making gear wheels |
Recent Patents
Not Available
Recent Publications
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Top Owners in This Class
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Applications Filed in This Class - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 36 Months (last 2 years Issuances)
- 36 Months (last 5 years Issuances)