Invention Grant
- Patent Title: Parallel link mounting arm for a furrow opener
- Patent Title (中): 开沟器的平行连杆安装臂
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Application No.: US12057922Application Date: 2008-03-28
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Publication No.: US07549481B2Publication Date: 2009-06-23
- Inventor: Devin Lung , Mark Cresswell
- Applicant: Devin Lung , Mark Cresswell
- Applicant Address: CA St. Brieux, Saskatchewan
- Assignee: Bourgault Industries Ltd.
- Current Assignee: Bourgault Industries Ltd.
- Current Assignee Address: CA St. Brieux, Saskatchewan
- Agency: Frost Brown Todd LLC
- Priority: CA2591379 20070612
- Main IPC: A01B5/00
- IPC: A01B5/00 ; A01B49/02 ; A01C5/00 ; A01C13/00

Abstract:
A trailing arm furrow opener apparatus includes a furrow opener bracket attached to the rear link of a parallel link assembly such that the furrow opener bracket and furrow opener attached thereto is maintained in a constant fore and aft angular orientation as the assembly moves up and down. A pucker wheel arm is fixed to one of the upper and lower parallel arm members of the parallel link assembly, and extends rearward from the rear link, and a packer wheel is mounted to the packer wheel arm. A bias device exerts a downward force on the assembly. The presentation angle of the furrow opener with respect to the ground is maintained constant while the assembly moves up and down.
Public/Granted literature
- US20080308024A1 PARALLEL LINK MOUNTING ARM FOR A FURROW OPENER Public/Granted day:2008-12-18
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