发明授权
US3950759A Portable instrument for recording electrical load current and operating
duration
失效
便携式仪表,用于记录电气负载电流和工作时间
- 专利标题: Portable instrument for recording electrical load current and operating duration
- 专利标题(中): 便携式仪表,用于记录电气负载电流和工作时间
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申请号: US539477申请日: 1975-01-08
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公开(公告)号: US3950759A公开(公告)日: 1976-04-13
- 发明人: Edwin K. Ziegenfuss
- 申请人: Edwin K. Ziegenfuss
- 申请人地址: PA Bethlehem
- 专利权人: Bethlehem Steel Corporation
- 当前专利权人: Bethlehem Steel Corporation
- 当前专利权人地址: PA Bethlehem
- 主分类号: B23K9/095
- IPC分类号: B23K9/095 ; G01D9/30 ; G07C3/12 ; G01D9/00 ; G01D15/16
摘要:
Self-contained portable recording instrument is particularly useful at field sites for recording the magnitude of both welding current and operating duration. A second embodiment is adapted to record the magnitude of welding current, voltage and operating duration. Strip chart records provide analysts with means for determining operator incentive pay when working on field assignments. Records enable determining the quality and duration of actual welds, as well as the occurrence of operator-simulated welding time.
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