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| Number | Title | Issue Date |
| 6415809 | Fluidic valve assemblies having improved fluidic valve mechanisms, and devices operable therewith A fluidic valve assembly having a fluidic valve mechanism similar to the mechanisms in U.S. Pat. Nos. 5,003,780 and 5,348,040 provided with improved valve positioning devices which provide improvements in providing the force to move the valve members, and... | 07/09/2002 |
| 5669405 | Apparatus and method for automatically disabling pressure relief valve of backflow preventer An apparatus and method for automatic disablement of a pressure relief valve used in connection with a backflow preventer in a fire line. A normally open solenoid valve is included in a pressure sampling line, extending from an inlet, or upstream chamber ... | 09/23/1997 |
| 5150876 | Servo valve A servo valve comprises an electrical winding, an armature, flapper means fixed to the armature and a feedback arrangement including a radially extending plug fixed to an end of one of the arms of the flapper arrangement. The plug is located within the fl... | 09/29/1992 |
| 4966198 | Metering arrangement This invention relates to a diversion valve for a liquid metering arrangement including a liquid meter, a sampling chamber and a sub-sampler. The diversion valve has a first position allowing liquid to flow normally to the meter, sampling chamber and sub-... | 10/30/1990 |
