Abrasive coated sharpening tool and method of making it
    3.
    发明授权
    Abrasive coated sharpening tool and method of making it 失效
    磨料涂层磨刀工具及其制作方法

    公开(公告)号:US4102085A

    公开(公告)日:1978-07-25

    申请号:US719729

    申请日:1976-09-02

    CPC分类号: B24D3/10

    摘要: A new type of knife sharpening tool having a cutting surface consisting of abrasive grains embedded and held in place in a ceramic-metal matrix, chemically bonded to a substrate such as a steel core and method of making same.

    摘要翻译: 一种新型的刀刃磨削工具,其具有由陶瓷 - 金属基体中嵌入并保持在适当位置的磨粒组成的切割表面,化学粘合到诸如钢芯的基底上,以及制造其的方法。

    Compressor air tank plug
    5.
    发明授权
    Compressor air tank plug 失效
    压缩机空气罐塞

    公开(公告)号:US5217202A

    公开(公告)日:1993-06-08

    申请号:US902680

    申请日:1992-06-22

    申请人: Alan G. Phillips

    发明人: Alan G. Phillips

    IPC分类号: C23F13/14 F16T1/38

    CPC分类号: F16T1/38 C23F13/14 Y10S411/90

    摘要: An anti-corrosion plug for closing a threaded condensate drain opening in a compressor air tank. The plug is formed from a material having a lower potential in the electrochemical series than said air tank to prevent electrolytic corrosion of the tank. The plug has a central cavity open to receive any condensate in the tank. An acid neutralizing insert, for example, of limestone, is located in the cavity to neutralize any acidity in the tank condensate.