发明授权
- 专利标题: Air logic circuit for airfeed peck drill
- 专利标题(中): 用于空气啄钻的空气逻辑电路
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申请号: US114956申请日: 1987-10-30
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公开(公告)号: US4867617A公开(公告)日: 1989-09-19
- 发明人: James A. Maass , John F. Stewart , Joseph F. Carter
- 申请人: James A. Maass , John F. Stewart , Joseph F. Carter
- 申请人地址: TX Houston
- 专利权人: Cooper Industries, Inc.
- 当前专利权人: Cooper Industries, Inc.
- 当前专利权人地址: TX Houston
- 主分类号: B23Q16/00
- IPC分类号: B23Q16/00
摘要:
An improvement to an air logic circuit for an airfeed peck drill includes the insertion of a retract valve between the command valve and the air motor. This retract valve generates a required signal to only allow the drill quill to feed forward after it has been fully retracted
公开/授权文献
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