发明名称 Furrowing tip body for a paired row opener
摘要 A paired row opener has a furrowing tip arranged to be selectively supported on a body of the opener. The furrowing tip includes a knife portion and a pair of wing portions extending rearwardly and outwardly therefrom. A central chamber between the wing portions communicates with a primary delivery passage of the opener body to receive the primary particulate material therefrom to be dispensed in a paired row from a pair of outlet openings of the chamber which are laterally spaced apart in a rear face of the tip body. A bottom wall spans a bottom side of the chamber between the wing portions to the rear face such that the outlet openings lie in an upright plane at a rearmost end of the tip body to be prevented from plugging even in wet conditions, while remaining selectively separable with the tip body from the opener body for replacement.
申请公布号 US7617783(B1) 申请公布日期 2009.11.17
申请号 US20080246707 申请日期 2008.10.07
申请人 DUTCH BLACKSMITH SHOP LTD. 发明人 CRUSON BRIAN
分类号 A01C5/00;A01C7/00;A01C9/00 主分类号 A01C5/00
代理机构 代理人
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