发明授权
US07694589B2 Low and empty product detection using load cell and load cell bracket
有权
使用称重传感器和称重传感器支架进行低和空的产品检测
- 专利标题: Low and empty product detection using load cell and load cell bracket
- 专利标题(中): 使用称重传感器和称重传感器支架进行低和空的产品检测
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申请号: US11954425申请日: 2007-12-12
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公开(公告)号: US07694589B2公开(公告)日: 2010-04-13
- 发明人: Richard J. Mehus , Bruce W. Weber , Ben J. Wiltsie
- 申请人: Richard J. Mehus , Bruce W. Weber , Ben J. Wiltsie
- 申请人地址: US MN St. Paul
- 专利权人: Ecolab Inc.
- 当前专利权人: Ecolab Inc.
- 当前专利权人地址: US MN St. Paul
- 代理机构: Shumaker & Sieffert, P.A.
- 主分类号: G01L1/26
- IPC分类号: G01L1/26 ; G01G19/30 ; G07F11/00
摘要:
A system and method detect when a product container from which a product is dispensed is empty or nearly empty, and provides a notification of the product status. The system includes a load cell that deflects at a first rate of distance per unit load when a load less than a critical load is positioned to be weighed by the load cell, and a load cell bracket positioned such that the free end of the load cell contacts the load cell bracket when a load substantially equal to or greater than the critical load is positioned to be weighed by the load cell. The load cell bracket may prevent the load cell from further deflection, or it may permit deflection of the load cell at a second rate of distance per unit load when the load cell is in contact with the load cell bracket. The system may generate an out-of-product notification when the amount of product dispensed is substantially equal to zero, a low product notification when the amount of the product remaining is less than a threshold weight or a proof-of-delivery notification.
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