发明授权
- 专利标题: Control system
- 专利标题(中): 控制系统
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申请号: US12069237申请日: 2008-02-09
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公开(公告)号: US07811448B2公开(公告)日: 2010-10-12
- 发明人: Jeffrey D. Johnson , Joseph A. King
- 申请人: Jeffrey D. Johnson , Joseph A. King
- 申请人地址: US MN Hopkins
- 专利权人: King Technology, Inc.
- 当前专利权人: King Technology, Inc.
- 当前专利权人地址: US MN Hopkins
- 代理机构: Jacobson & Johnson
- 主分类号: E04H4/12
- IPC分类号: E04H4/12 ; C02F1/76
摘要:
An apparatus and method for controlling a water characteristic of a body of water by controlling the cyclic release of a water characteristic material into the body of water with or without the system being responsive to a level of the water characteristic in the body of water.
公开/授权文献
- US20080289706A1 Control system 公开/授权日:2008-11-27
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