Invention Grant
- Patent Title: Control system
- Patent Title (中): 控制系统
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Application No.: US12069237Application Date: 2008-02-09
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Publication No.: US07811448B2Publication Date: 2010-10-12
- Inventor: Jeffrey D. Johnson , Joseph A. King
- Applicant: Jeffrey D. Johnson , Joseph A. King
- Applicant Address: US MN Hopkins
- Assignee: King Technology, Inc.
- Current Assignee: King Technology, Inc.
- Current Assignee Address: US MN Hopkins
- Agency: Jacobson & Johnson
- Main IPC: E04H4/12
- IPC: E04H4/12 ; C02F1/76
Abstract:
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.
Public/Granted literature
- US20080289706A1 Control system Public/Granted day:2008-11-27
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