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2. 发明授权

US5638570A Drywall bullnose cleaner tool 失效
标题翻译： Drywall牛仔清洁工具
公开(公告)号：US5638570A
公开(公告)日：1997-06-17
申请号：US556446
申请日：1995-11-15
申请人： Glen A. Gruner
发明人： Glen A. Gruner
IPC分类号： E04F21/16 , B05C17/00
CPC分类号： E04F21/1655
摘要： A tool for scraping material from a bullnose installed on a corner joint of a drywall installation includes an elongated device having a handle portion, a first end portion, a second end portion, and a size adapted for holding in one hand. The first end portion has a first convexly shaped edge that matches a concavely shaped portion of the bullnose. It enables a user to scrape the material from the bullnose by moving the convexly shaped edge along the concavely shaped portion of the bullnose. Preferably, the first concavely shaped edge is shaped in a 75-degree arc of 0.875 inch radius to match a convexly shaped portion of the bullnose when the bullnose is installed on a 90-degree corner joint, and the second end portion of the elongated device includes a second convexly shaped edge that is shaped in a 50-degree arc of 1.125 inch radius to match the concavely shaped portion of the bullnose when the bullnose is installed on a 135-degree corner joint. One embodiment takes the form of a 6.5 inch long aluminum bar having the specified shaped.
摘要翻译：用于从安装在干墙安装件的角接头上的雄蕊刮取材料的工具包括具有手柄部分，第一端部分，第二端部部分和适于一只手握持的尺寸的细长装置。第一端部具有与雄蕊的凹形部分匹配的第一凸形边缘。它使用户能够通过沿着雄蕊的凹形部分移动凸形边缘来从牛头中刮除材料。优选地，当将牛角安装在90度角接头上时，第一凹形边缘成形为具有0.875英寸半径的75度弧，以匹配公牛的凸形部分，并且细长装置的第二端部包括第二凸形边缘，其形状为半径为1.125英寸的50度弧，以在将长鼻角安装在135度拐角接头上时与雄蕊的凹形部分相匹配。一个实施例采用具有指定形状的6.5英寸长的铝棒的形式。

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