Method and apparatus for freeze prevention of irrigation systems

Details Method and apparatus for freeze prevention of irrigation systems Method and apparatus for freeze prevention of irrigation systems

1995-12-04

1997-12-09

Walton, George L.

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137 61, 137782, 137 80, 137551, 137557, 13762418, 340581, 340611, E03B 712, F16L 5300, F16L 5507

Patent

active

056949634

ABSTRACT:
There is disclosed an apparatus for freeze prevention protecting an irrigation system. The response of the apparatus depends on environmental conditions. At a first temperature condition, the irrigation system is shut down. At a lower temperature condition, the system remains shut down and heat is delivered to the above ground portions of the system. In the event temperatures continue to decrease, a full drainage of the above ground portion of the irrigation system will be accomplished and alarm notification will be given.

REFERENCES:
Hasslinger Manufacturing Corporation, Sales Literature .COPYRGT.1996, NO FREEZE.TM. Patent Pending.
The Toro Company, Spec Sheets .COPYRGT.1993, "The MIR5000c Central Controller," The MIR5000i Satellite and MIR5000s Remote I/O Unit, The MIR5000f Field Satellite, and Motorola MIR5000 System Features.
Rain Bird Sprinkler Mfg. Corp., Sales Literature .COPYRGT.1992, MAXICOM.COPYRGT. Central Control System and Schematic.
Rain Bird Sprinkler Mfg. Corp., Tech Specs .COPYRGT.1994, "Central Output Module, Decoders, Weather Station, SBM Satellite, ISC Satellite, and Cluster Control Unit".

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