Invention Grant
- Patent Title: Chisel holder and lower tool part for a chisel holder
- Patent Title (中): 凿子支架和凿子支架的下部工具部件
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Application No.: US13989837Application Date: 2011-12-02
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Publication No.: US09267373B2Publication Date: 2016-02-23
- Inventor: Karl Kammerer , Markus Roth , Bernhard Diessner , Thomas Lehnert , Karsten Buhr , Martin Lenz , Cyrus Barimani , Günter Hähn
- Applicant: Karl Kammerer , Markus Roth , Bernhard Diessner , Thomas Lehnert , Karsten Buhr , Martin Lenz , Cyrus Barimani , Günter Hähn
- Applicant Address: DE
- Assignee: Wirtgen GmbH
- Current Assignee: Wirtgen GmbH
- Current Assignee Address: DE
- Agency: Patterson Intellectual Property Law, PC
- Agent Lucian Wayne Beavers
- Priority: DE102010061019 20101203
- International Application: PCT/EP2011/071585 WO 20111202
- International Announcement: WO2012/072783 WO 20120607
- Main IPC: E21C35/18
- IPC: E21C35/18 ; E21C35/19 ; E21C35/193
Abstract:
The invention relates to a bit holder having an insertion projection and having a bore-shaped bit receptacle that has a longitudinal center axis, a convexly curved support surface being provided on a base part. A bit holder of this kind can be implemented in compact and stable fashion in particular by the fact that the longitudinal center axis of the bit receptacle intersects the support surface.
Public/Granted literature
- US20130307318A1 Chisel Holder And Lower Tool Part For A Chisel Holder Public/Granted day:2013-11-21
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