Fluid handling – Systems – Programmer or timer
Patent
1997-05-05
1999-08-31
Lee, Kevin
Fluid handling
Systems
Programmer or timer
13762412, 137883, 239 70, F16K 3106, A01G 2700
Patent
active
059440520
ABSTRACT:
A novel irrigation valve having a single central inlet and a plurality of radially located outlets each covered by a sliding disk valve. Each disk valve is manually operable and in automatic mode is operated by the interference action of an innovative indexing mechanism which uses the hydraulic pressure of the inlet for its operation a single three-way solenoid valve is energized to actuate a piston within the indexing mechanism while a pin-teeth engagement of a cylinder-indexer assembly converts the linear motion of a piston rod into a rotary motion of an indexing arm. A battery operated timer controls the time intervals between each incremental rotation of an indexing arm in sequence until it is returned to its home position. The housing of the valve is compact and of low profile, thereby simplifying its manufacturing, assembling, installation and maintenance and reducing cost. Although suitable for use in controlling the distribution of water in an automatic irrigation circuit, it can be modified and be adapted for control of variety of liquids in fluid handling applications.
REFERENCES:
patent: 4429716 (1984-02-01), Conrad
patent: 4811221 (1989-03-01), Sturman et al.
patent: 5048564 (1991-09-01), Gaiardo
patent: 5135168 (1992-08-01), Wang
Connors John J.
Lee Kevin
LandOfFree
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