发明授权
- 专利标题: Fume extracting torch handle
- 专利标题(中): 烟雾提取手电筒
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申请号: US443906申请日: 1974-02-19
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公开(公告)号: US3980860A公开(公告)日: 1976-09-14
- 发明人: Donald L. Howell , Leo E. Wildenthaler
- 申请人: Donald L. Howell , Leo E. Wildenthaler
- 申请人地址: OH Troy
- 专利权人: Hobart Brothers Company
- 当前专利权人: Hobart Brothers Company
- 当前专利权人地址: OH Troy
- 主分类号: B08B15/04
- IPC分类号: B08B15/04 ; B23K9/00
摘要:
A torch handle for use with a nozzle which includes a fume extracting orifice to remove fumes generated by welding or cutting includes a conduit within the handle for carrying the fumes to a vacuum pump and means for cooling the handle. In one embodiment, cooling is provided by mixing large quantitites of ambient air with the fumes in the vicinity of the nozzle. In another embodiment of the invention, ambient air is drawn into the handle and over the fume conduit and thereafter mixed with the fumes in the pipe leading to the vacuum pump. In a third embodiment, compressed air is directed into the handle from an internal source and passed over the fume carrying conduit within the handle. In a fourth embodiment, cooling water is passed over the surface of the fume extracting conduit within the handle.
公开/授权文献
- US5052961A Cowling assembly for outboard motor 公开/授权日:1991-10-01
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