Invention Grant
- Patent Title: Milling head and method for machining pile heads
- Patent Title (中): 铣头和加工桩头的方法
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Application No.: US12449963Application Date: 2008-04-18
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Publication No.: US08118370B2Publication Date: 2012-02-21
- Inventor: Alois Portmann , Hanspeter Marti
- Applicant: Alois Portmann , Hanspeter Marti
- Applicant Address: CH Ruswil
- Assignee: Baurent AG Central
- Current Assignee: Baurent AG Central
- Current Assignee Address: CH Ruswil
- Agency: Oliff & Berridge, PLC
- Priority: EP07107656 20070507
- International Application: PCT/EP2008/054735 WO 20080418
- International Announcement: WO2008/135365 WO 20081113
- Main IPC: E02D9/00
- IPC: E02D9/00

Abstract:
The milling head which serves for the machining of the head of a pile consisting of a pile core, a pile shaft and a metal reinforcement lying therebetween comprises a coupling device that can be connected to a drive shaft and a plurality of picks that are used to remove concrete. According to the invention a central milling cutter provided with a plurality of central picks and an annular milling cutter provided with a plurality of annular picks are fixedly coupled with each other and arranged coaxially with the longitudinal axis of the drive shaft. The central picks are arranged within a central circular ring and the annular picks, separated by a middle circular ring, are arranged in an outer circular ring whereby the circular rings lie at least approximately perpendicular to and concentric with the longitudinal axis of the drive shaft. It is possible with the method according to the invention and the milling head to remove the pile core and the pile shaft simultaneously without the reinforcement of the pile lying in the middle circle being damaged.
Public/Granted literature
- US20100109420A1 MILLING HEAD AND METHOD FOR MACHINING PILE HEADS Public/Granted day:2010-05-06
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