Invention Grant
US3998259A Deburring and die-shaping of punched holes in precision mass produced
parts
失效
精密批量生产零件中冲孔的去毛刺和模压成型
- Patent Title: Deburring and die-shaping of punched holes in precision mass produced parts
- Patent Title (中): 精密批量生产零件中冲孔的去毛刺和模压成型
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Application No.: US646726Application Date: 1976-01-05
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Publication No.: US3998259APublication Date: 1976-12-21
- Inventor: Josef Zocher
- Applicant: Josef Zocher
- Applicant Address: NJ Elizabeth
- Assignee: The Singer Company
- Current Assignee: The Singer Company
- Current Assignee Address: NJ Elizabeth
- Main IPC: D05B85/02
- IPC: D05B85/02 ; B21G1/12 ; B21G3/28
Abstract:
A method of manufacture is disclosed by which punched holes in mass produced parts, such as sewing machine needles and yarn guiding elements for textile machines, can be readily shaped, deburred and polished using die-shaping procedures only.
Public/Granted literature
- US5775673A Load binder tool Public/Granted day:1998-07-07
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