发明授权
- 专利标题： Scrubber with hydraulic squeegee lift
- 专利标题（中）： 刮水器带液压刮板电梯
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申请号： US183727申请日： 1980-09-03
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公开(公告)号： US4334335A公开(公告)日： 1982-06-15
- 发明人: Neil F. Brown , Keith N. Krier , Ranjan K. Nirgude
- 申请人： Neil F. Brown , Keith N. Krier , Ranjan K. Nirgude
- 申请人地址： MN Minneapolis
- 专利权人： Tennant Company
- 当前专利权人： Tennant Company
- 当前专利权人地址： MN Minneapolis
- 主分类号： A47L11/30
- IPC分类号： A47L11/30 ; A47L7/00
摘要：
A scrubbing device is provided including a body which is supported on a plurality of wheels which are driven by a hydraulic pump. The scrubbing machine has a squeegee which is hydraulically raised and lowered. The machine is provided with a sensing device adjacent the hydraulic drive pump which senses the flow of the hydraulic fluid and actuates valving to raise the squeegee upon reverse movement of the scrubber and lower the squeegee upon forward movement of the scrubber.
公开/授权文献
- US4909379A Vibrator conveyor system 公开/授权日：1990-03-20
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