发明授权
- 专利标题: Hollow drill for fabric and the like
- 专利标题(中): 用于织物的空心钻等
-
申请号: US224669申请日: 1988-07-27
-
公开(公告)号: US5098234A公开(公告)日: 1992-03-24
- 发明人: Ren Judkins , Ralph Jelic
- 申请人: Ren Judkins , Ralph Jelic
- 申请人地址: PA Pittsburgh
- 专利权人: Verosol USA Inc.
- 当前专利权人: Verosol USA Inc.
- 当前专利权人地址: PA Pittsburgh
- 主分类号: B23B51/04
- IPC分类号: B23B51/04
摘要:
A hollow drill for fabric and the like is comprised of a hollow shaft having highly polished inside and outside surfaces and an outside diameter of preferably not more than 0.130 inches. A tip having a larger outside diameter and smaller inside diameter is brazed or soldered to the shaft. The shaft is made by a continuous manufacturing method such as extrusion and the tip is machined or molded followed by finish machining.
公开/授权文献
- US5542244A Method of making a rope chain with a jewelry component 公开/授权日:1996-08-06
信息查询