Hans Krapfenbauer

Person

Kuesnacht, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the production of a toothed rack via cold forming, the...
- Patent number 5,546,781
- Issue date Aug 20, 1996
- Ernst Grob AG
- Hans Krapfenbauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for the production of a hollow workpiece being profiled at...
- Patent number 5,355,706
- Issue date Oct 18, 1994
- Ernst Grob AG
- Daniel Deriaz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of fabricating a rim gear, such as a starter rim gear made o...
- Patent number 4,796,345
- Issue date Jan 10, 1989
- Ernst Grob AG
- Hans Krapfenbauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for fabricating precision teeth
- Patent number 4,388,818
- Issue date Jun 21, 1983
- Firma Ernst Grob
- Hans Krapfenbauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cold rolling method and cold rolling apparatus
- Patent number 4,307,592
- Issue date Dec 29, 1981
- Firma Ernst Grob
- Hans Krapfenbauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for manufacturing straight or inclined toothed...
- Patent number 4,116,032
- Issue date Sep 26, 1978
- Ernst Grob
- Hans Krapfenbauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Hans Krapfenbauer

Person

Patents Grantslast 30 patents

Process for the production of a toothed rack via cold forming, the...

Process for the production of a hollow workpiece being profiled at...

Method of fabricating a rim gear, such as a starter rim gear made o...

Method and apparatus for fabricating precision teeth

Cold rolling method and cold rolling apparatus

Method and apparatus for manufacturing straight or inclined toothed...