Matches 1 - 50 out of 143 1 2 3 >
Match Document Document Title
6886580 Frost proof valve  
The present invention relates to a valve assembly for use in below freezing conditions which includes a valve housing with a connection to a supply of fluid, and a primary chamber, and a secondary...
6845960 Hydraulic and pneumatic operative diaphragm valve  
Disclosed is a diaphragm valve. When a chamber is expanded by fluid supply into a pipe-shaped button, a valve stem is slightly moved upward by a rod and a shaft to open an outlet of an orifice....
6478044 Snap-action piloted fill valve  
A snap-action piloted fill valve for controlling the level in a liquid storage tank, the valve having a float and a weight cup that are adjustably interconnected by an elongated sleeve slidably...
6394412 Controlled valve  
A hydraulic diaphragm valve comprising a housing, an inlet, an outlet, a diaphragm valve seating between the inlet and the outlet, a sealing diaphragm mounted in the housing and displaceable about...
6286533 Metering valve assembly  
A metering valve assembly for use in sanitary applications and method of use is disclosed. The metering valve assembly has a relief valve hydraulically controlling a pilot valve covering a water...
6164313 Low-high flow rate valve  
A float operated valve for controlling the rate of flow of water from a pipe carrying water under pressure, to a vessel, comprises a pipe having an end opening of selected diameter and a flange of...
6131608 Water flowrate control device  
A water flowrate control device, which includes a casing connected to water source means, a holder member mounted inside the casing, a pressure release element mounted in the holder member, a steel...
6079437 Diaphragm valve with flow control stem air bleed  
A diaphragm valve includes a valve housing, a diaphragm assembly mounted within the valve housing, a pilot valve coupled to the valve housing and a flow control stem mounted in an upper bonnet of...
5996608 Diaphragm valve with filter screen and movable wiper element  
A diaphragm-type control valve for irrigation systems has an outer clam-shell housing that encloses a vertically reciprocable diaphragm assembly. A primary valve seat inside the housing is engaged...
5979863 Irrigation control valve and screen  
A control valve comprises a housing having an inlet for connecting to a source of water and an outlet, a pressure responsive diaphragm valve assembly including a valve disc having a front face and...
5979482 Removable captive plunger with contamination protection  
A diaphragm-type control valve for irrigation systems has a solenoid operated pilot valve assembly. The solenoid includes a housing having a generally cylindrical bore with an open end, an...
5871156 Sprinkler with removable valve seat  
An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a...
5860631 Pilot valve for suspension control systems  
A two-stage pilot valve for suspension control systems. The valve includes an annular pilot member so that fluid discharges in a radial direction, and it is preferable that the valve member is...
5853026 Valve with downstream manual bleed  
A valve for controlling the flow of a liquid includes a valve seat which is engaged by a selectively operable valve member. A pressure chamber above the valve member contains upstream pressurized...
5738332 Flow valve operated by flow transfer means which regulate small flows of control  
A flow valve operating by pressure differentials and by flow transfer means which regulate small flows of control. This valve is sensitive to small changes of pressure and resistant to great...
5641271 Float operated pump including diaphragm valve assembly with bleed passage  
Pump (1) includes a pneumatic valve assembly (98) having a chamber (105) which is supplied by compressed air via an inlet pipe. Included within chamber (105) is a valve (109) with a chamber (111)...
5632465 Valve assembly  
A valve assembly having a housing with an inlet passage and an outlet passage communicating with a valve chamber through a substantially hemispherical valve seat; a valve member mounted in the...
5408709 Shower control assembly  
A flow control assembly regulates the flow of water from a shower head independently from the normal valving system. A control valve is located upstream of the shower head, as seen in the water...
5318062 Readily serviceable differential pressure actuated ballcock valve  
A tank valve for refilling a water tank. A vertical riser has a passage opening through a valve seat in a body. A flow chamber and a discharge chamber are formed around the valve seat. A cap is...
5299774 Diaphragm controlled irrigation valve with captivated bleed screw  
A diaphragm controlled irrigation valve (20) is disclosed which includes a captivated relief member (60). The captivation is achieved by a stop (100) which radially extends from the member to abut...
5238024 Pilot-operated diaphragm valve with separate on/off control  
A diaphragm valve assembly adapted for use in irrigation systems as a zone valve includes a solenoid-operated diaphragm to control flow through the valve under normal operations, and a ball valve...
5181538 Multiple stream fluid mixing and dispensing apparatus  
An improved multiple stream, fluid mixing and dispensing apparatus for automatically regulating flow rate for one or more preset fluid flows including a plural station, fluid flow rate console...
5150732 Boosted differential pressure-type tank valve  
A tank valve for maintaining a water lever storage level in a tank. The tank valve includes differential pressure valve workings under control of a pivot member. A float enables the valve to open...
5067516 Valve assembly  
A pilot-operated, diaphragm-controlled float valve assembly has a primary valve and a pilot valve operated by a float arm, a cavity for the main valve is formed between a split segment casing and...
4987920 Diaphragm actuated valve assembly  
A pilot operated, diaphragm actuated fluid valve assembly having an annular main valve seat with a tapered annular surface disposed therearound. A movable diaphragm has a generally flat central...
4981155 Electrically operated valve assembly  
An electromagnetically actuated, pilot operated valve having a nonmetallic body with a pressure responsive disphragm for opening the main valve and defining, in cooperation with a guide member, a...
4971104 Self powered servo actuated backpressure regulating valve  
A self-powered servo-actuated backpressure regulating valve including a valve housing (1) having an inlet port (2) and an outlet port (3). A valve plate (4) is disposed in the housing (1) and...
4903724 Liquid level control system  
A liquid level control system for automatically stopping the flow of water in a bathtub. The system includes an adjustable level control mechanism and a flow control device. The control mechanism...
4893645 Control valve with improved dual mode operation and flow adjustment  
A control valve in which the bonnet is removably fixedly attached to the valve body by a retained bolt and slot arrangement in such a way as to fix the marginal edge of the diaphragm main valve...
4832310 Flush control valve  
A flush control valve (10) for metering a predetermined amount of flush fluid, or other liquid, to a facility, such as a urinal, to be flushed. The flush control valve (10) has a push button cap...
RE32880 Rolling diaphragm metering valve  
An improved metering valve, or flush valve, incorporates a rolling diaphragm mechanism of a cylindrical elastomeric material providing a smoothly transitioning flow rate control from the full open...
4794940 Plural diaphragm valve  
A diaphragm valve for controlling fluid flow. The valve contains a first and second diaphragm and a piston therebetween. The piston cooperates with the diaphragms controlling their movement within...
4785851 Vacuum security valve having a buffer volume  
A vacuum security valve includes a buffer volume in a movable piston. The movable piston has two orifices communicating with the buffer volume, the first orifice communicating with a clearance...
4671485 Solenoid-operated pilot valve with adjustable flow control  
A solenoid-operated pilot valve of the diaphragm type which includes an assembly for controlling the flow of liquid through the valve. The valve has particular although not exclusive utility for...
4662602 Metering valve  
A valve for delivering a metered flow of liquid for flushing of a plumbing fixture or the like includes inlet and outlet ports and a main valve controlling flow from the inlet to the outlet port. A...
4655243 Automatic pool filler  
A device that maintains the water level of a swimming pool within acceptable limits. The device includes a valve member that has a valve chamber and a diaphragm chamber. The valve member is held in...
4624442 Control regulator having a rolling diaphragm  
A rolling diaphragm regulator valve is affixed in a globe type valve body and includes a non-stretchable fabric reinforced liner for covering and uncovering, by rolling action in response to...
4613111 Valve which is opened by reduced pressure  
A valve which opens on reduced pressure comprises: a hollow body (1) divided into first and second portions (2 and 3) by an internal partition (4), with the first portion being provided with a...
4603832 Solenoid actuator with bleed screw  
A bleed screw is built into a solenoid actuator used to control a diaphragm controlled valve so that the valve can be opened manually by means of the bleed screw or remotely or automatically...
4575042 Pneumatically amplified conservation valve  
A pneumatically amplified conservation valve controls a flow of gas, such as oxygen, to a hospital patient. A sense tube monitors pressure variations as a result of exhalation by the user. The...
4573495 Hydrostatic ballcock assembly  
A ballcock assembly having an upright standpipe for delivery of flush water, a control valve assembly at the upper end of the standpipe, and a float and ballast assembly slidably mounted for up and...
4566484 Liquid level control apparatus  
An apparatus for controlling the flow of liquid from a conduit into a tank to maintain a selected level, which is an improvement on the conventional type of float-operated flow valves which use a...
4529002 Pilot-operated ball cock valve  
A pilot-operated ball cock valve of the type wherein a vent to a pressure chamber is controlled by a lever arm to thereby control the flow of fluid through the valve. A movable rod is slidable in...
4508136 Anti-syphon flow control valve  
A liquid flow control valve having a valve seat and a valve plug for engaging said valve seat, said plug being connected to a pressure responsive device, such as a diaphragm, for movement...
4505450 Solenoid-operated pilot-actuated valve  
A solenoid-operated pilot-actuated valve is provided of the diaphragm type which has particular utility for irrigation purposes. The valve also finds industrial utility where it is desirable to...
4469124 Gas shut-off valve  
A shut-off valve includes a valve stem or actuating member operatively connected to a pressure-responsive apparatus. The pressure-responsive apparatus is acted upon by fluid in a pressure chamber...
4453563 Non-chattering float controlled pilot operated diaphragm valve  
A non-chattering, float-controlled, pilot-operated diaphragm valve for controlling the flow of liquids from a conduit under pressure to a tank where the surface is in turbulent condition. The...
4364524 Irrigation control system  
An irrigation control system includes a rotary water motor which receives water from a valve, which has either a full on or a full off condition, depending on the alignment of an associated...
4336918 Diaphragm valve with multiple pivot axis valve element  
A valve comprising a valve housing having a flow passage extending through the valve housing and a cavity communicating with the flow passage, a valve seat in the flow passage, a diaphragm...
4301992 Diaphragm valve  
A diaphragm operated valve including a valve housing having a passage extending therethrough with an inlet and an outlet and a cavity communicating with the passage. A diaphragm extends across the...
Matches 1 - 50 out of 143 1 2 3 >