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| Number | Title | Issue Date |
| 7353837 | Pressure reducer with adjustable flow restrictor A pressure reducer has a housing comprising an inlet and an outlet in which a flow-around body is arranged in a flow channel connecting inlet and outlet. A flow restrictor is adjustably mounted relative to the flow-around body for varying a flow rate and is movably ... | 04/08/2008 |
| 7303147 | Sprinkler having valve module with reciprocating valve seat A sprinkler includes an outer case and a riser mounted for reciprocation within the case. The riser supports a nozzle, an impeller, and a drive linkage connecting the nozzle and the impeller. A diaphragm valve is mounted in outer case beneath the riser and includes ... | 12/04/2007 |
| 5417238 | Tillage implements A tillage element for use in a plough, harrow or the like is described which comprises a disc having a substantially planar portion and an inclined flange portion extending from the periphery of said central portion, an abrupt transition being provided fr... | 05/23/1995 |
| 5303778 | On-off type sprinkler In an automatic turn-off sprinkler, water enters an inlet and passes through a hollow interior region to the outlet. A reciprocating spool in the hollow region normally blocks the outlet enabling incoming water to fill a chamber above the spool. The gap b... | 04/19/1994 |
| 4732189 | Fast opening valve A fast opening plug valve especially for release of high pressure gas. The plug has an internal chamber and is held in the closed position by the pressure of gas within this chamber which acts on a fixed wall. The opening stroke is driven by valve inlet p... | 03/22/1988 |
| 4429709 | Cascade-based method and device for fluid handling and measurement A method and devices for applying the generally known principle of cascade flow in control of self-adjusting fluid handling systems, which devices are capable of maintaining predetermined flow rate/pressure difference ratios, over a wide range of variatio... | 02/07/1984 |
| 4254634 | Control valve to be employed for refrigerator and air conditioner A fluid flow passage is available, between an inlet tube and an outlet tube, through a piston supported by a spring and equipped with an orifice connecting a pilot chamber and the outlet tube. A bellows chamber or a diaphragm chamber is provided with a pi... | 03/10/1981 |
| 3974849 | Diaphragm valves A valve assembly comprises a body having an inlet and an outlet, a chamber between the inlet and the outlet, a valve diaphragm fitted in the valve body and attached to a rigid closure member adapted to close the inlet with the periphery of the diaphragm s... | 08/17/1976 |
