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| Number | Title | Issue Date |
| 7370667 | Flow through pressure regulator with pinch valve A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a d... | 05/13/2008 |
| 5875813 | Automatic back water valve system A valve body is formed in two half sections which are secured together to define a drain line passage and to confine therebetween a thin gate valve blade for movement between a lower open position and an upper closed position. An actuator includes a flexi... | 03/02/1999 |
| 5538032 | Automatic back water valve system A valve body is formed in two half sections which are secured together to define a drain line passage and to confine therebetween a thin gate valve blade for movement between a lower open position and an upper closed position. A cylindrical bellows is sea... | 07/23/1996 |
| 4543985 | Pressure regulator A fluid pressure regulator for adjusting the pressure of fluid passing through a pipe is provided for use with irrigation sprinklers or the like. The pressure regulator has a housing having a passageway therethrough, which has a throttling stem slidably m... | 10/01/1985 |
