Invention Grant
US07690407B2 Sawing device and its safety system for precaution of a breaking saw chain
有权
锯切装置及其安全系统，用于预防断裂锯链
- Patent Title: Sawing device and its safety system for precaution of a breaking saw chain
- Patent Title (中): 锯切装置及其安全系统，用于预防断裂锯链
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Application No.: US10521048Application Date: 2003-07-07
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Publication No.: US07690407B2Publication Date: 2010-04-06
- Inventor: Markku Annala
- Applicant: Markku Annala
- Applicant Address: FI Tampere
- Assignee: John Deere Forestry Oy
- Current Assignee: John Deere Forestry Oy
- Current Assignee Address: FI Tampere
- Agency: Quarles & Brady LLP
- Priority: FI20021379 20020712
- International Application: PCT/FI03/00548 WO 20030707
- International Announcement: WO2004/006654 WO 20040122
- Main IPC: A01G23/02
- IPC: A01G23/02
Abstract:
Method and safety device for a breaking saw chain. The safety device includes a protective wall positioned in the vicinity of the drive gear drawing the saw chain that is capable of receiving the movement of the tail of the broken saw chain and guiding the broken saw chain and the tail into the desired direction. The protective wall is moved in phase with a guide bar to hold the protective wall in the correct location during sawing in relation to the saw chain.
Public/Granted literature
- US20060107804A1 Sawing device and its safety system for precaution of a breaking saw chain Public/Granted day:2006-05-25
Information query
