发明授权
- 专利标题： Unitized chemically etched tungsten electrode
- 专利标题（中）： 单位化学蚀刻钨电极
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申请号： US11498346申请日： 2006-08-03
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公开(公告)号： US07218046B2公开(公告)日： 2007-05-15
- 发明人: Dean A. Bell , Timothy D. Russell
- 申请人： Dean A. Bell , Timothy D. Russell
- 申请人地址： US NY Skaneateles Falls
- 专利权人： Welch Allyn, Inc.
- 当前专利权人： Welch Allyn, Inc.
- 当前专利权人地址： US NY Skaneateles Falls
- 代理机构： Marjama & Bilinski LLP
- 主分类号： H01J17/18
- IPC分类号： H01J17/18
摘要：
A method of making a unitized tungsten electrode which exhibits superior mechanical and electrical properties which includes providing a length of cylindrical cut stock having a predetermined diameter and length. The stock is ground to form a rough unfinished electrode having an enlarged tip or nose portion at one end integrally connected to an elongated shank section. The unfinished electrode is treated by exposure to a chemical etchant for a time sufficient to form a finished electrode characterized by a smooth nose and shank surface and rounded undercut and ends. The invention includes the electrode formed by the described process.
公开/授权文献
- US20060270306A1 Stable electrode design and method 公开/授权日：2006-11-30
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