Invention Grant
- Patent Title: Rolling die
- Patent Title (中): 滚死
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Application No.: US13359335Application Date: 2012-01-26
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Publication No.: US09586255B2Publication Date: 2017-03-07
- Inventor: Juergen Gebhard , Simon Oppeneiger , Corinna Achleitner , Mirco Fleige
- Applicant: Juergen Gebhard , Simon Oppeneiger , Corinna Achleitner , Mirco Fleige
- Applicant Address: LI Schaan
- Assignee: Hilti Akitengesellschaft
- Current Assignee: Hilti Akitengesellschaft
- Current Assignee Address: LI Schaan
- Agency: Crowell & Moring LLP
- Priority: DE102011003252 20110127
- Main IPC: B21H3/06
- IPC: B21H3/06 ; B21H3/04
Abstract:
A rolling die for forming a screw thread on a screw blank is disclosed. The rolling die has a plurality of grooves, where the grooves each have two flanks as seen in cross-section. At least a portion of each of the grooves has a forming area in which the size of a profile angle enclosed by the flanks decreases continuously along the grooves.
Public/Granted literature
- US20120328393A1 ROLLING DIE Public/Granted day:2012-12-27
Information query
