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Match Document Document Title
8172923 Apparatus and method for reducing particle contamination in a vacuum chamber  
An apparatus and method for maintaining low gas velocity variation across a diffuser membrane during the vent-up of a vacuum chamber is disclosed. The diffuser membrane permeability and the...
8122906 Pressure driven apparatus for sequential control of a cementing head  
A pressure-driven apparatus sequential controls a multiphase operation, e.g., of a cementing head. A transmission arm including a pawl is supported on a cam shaft connected to a pawl cylinder...
RE42633 Spool valve for fluid control  
A spool valve is provided with a stem portion that defines a fluid passageway formed by either (a) a single central support having a non-cylindrical curved surface shaped hydrodynamically, or (b)...
7892419 Device and method for treating water  
Device for treating water with a supply (3); a treatment tank (4); a drain (9); a regulator (13); and a bypass (22) which connects the supply (3) to the drain (9), characterised in that in the main...
7526365 Continuous-flow irrigation timer  
An apparatus for controlling an irrigation system having multiple irrigation zones. The apparatus comprises a processor with associated memory, a plurality of valve controllers, an input device and...
RE40511 Rotary disc valve  
A multi-port rotary disc valve comprising a stator with a plurality of fluid flow ports and a rotary distributor with a plurality of channels arranged in a channel pattern. The channels are adapted...
7404415 Mechanical intermittent timer flow controller  
An intermittent fluid flow controller including a main body that houses an inlet in controlled fluid communication with an outlet, a mechanical timing mechanism including a rotatable member that...
7373949 Fluid treatment system  
A control valve for a water treatment system which includes a turbine (110) rotatably mounted within a water receiving chamber. A nozzle assembly (122) defines first and second fluid paths, one of...
6959728 Rotary cam valve  
A multiple fluid flow controller valve device having radially disposed a number of valves and a central rotary shaft with cam surfaces functioning as the valve controller to open and close the...
6796273 Switching current water director (SCWD) for aquariums  
The present invention relates to a water director for distributing a surge or flow of water to one or more of a plurality of output ports, which can vary in shape, size, and number, typically for...
6786234 Drainage tile flow regulator  
The title flow regulator disclosed is used for regulating the level of water in the fields of an agricultural operation according to seasonal needs by a mechanism for adjusting the outflow of water...
6763845 Water freeze prevention device  
An automatic water freeze prevention device having a first valve, second valve and third valve that cooperate to fill or drain a water utilization device according to pre-selected temperature...
6755204 Multi-way valve employing two-state operator  
A land (56) on an index member (32) disposed in the interior chamber of a manifold (38) is aligned with an actuating member (34) and thereby holds open a check valve (36) through which fluid flows...
6732760 Fluid distributor valve outlet opening and closing device  
This device comprises a body (2) having outlets (8), and a bonnet (3) housing a rotor (6) being submitted to the action of the inflowing fluid and being connected to a reducing gear (15) activating...
6644344 Method and apparatus for metering a flow rate of a fluid  
A method and apparatus for measuring the flow rate of a fluid based on the fluid weight. A container is provided between a fluid source and a fluid removal system. A valve is arranged between the...
6636782 Method of driving and controlling a solenoid-operated valve  
A method of driving and controlling a solenoid-operated valve is provided. The solenoid-operated valve can be centrally controlled and managed and it is possible to easily respond to any system...
6622933 Pressure sequence controlled valve and sprinkler system using same  
A lawn sprinkler system utilizes a master controller whose input is coupled to a water supply and whose output is coupled via pipe to a number of valves. The master controller is preprogrammed to...
6598621 Magnetic drives  
A magnetic device is formed from a permanent magnet (12, 14) generating magnetic flux, and an armature (10) which can occupy either a first air gap in which the flux is in one direction, or a...
6596159 Automatic regeneration valve for water softener  
A regeneration valve 131 is adapted for automatic activation of ion exchange resin in a water softener. The regeneration valve includes a switching valve 1, a control valve 32, a water injection...
6543066 Washing water supply apparatus  
A washing water supply apparatus 1 for supplying washing water to a toilet has valve members A and B opening/closing an opening leading to the toilet from a washing water source, cam members 8 and...
6453215 Irrigation controller  
An irrigation controller in one embodiment comprising a microprocessor for controlling a plurality of watering zones of an irrigation system, a keyboard for enabling an inputting of commands...
6287457 Water treatment device having volumeter driven monitoring discs  
A water treatment device wherein the water during treating is brought into contact with a treatment medium (29), whereby this treatment medium (29), either by means of a regeneration medium (42) or...
6241015 Apparatus for remote control of wellbore fluid flow  
An apparatus for remotely controlling fluids in a well is provided. The flow control apparatus may include a body member having a flow port in an outer wall of the body member, and a flow aperture...
6214214 Water treatment system with purge valve responsive to fluid signals  
A water treatment system including a pair of water treatment tanks, each tank defining a flow path extending from a tank inlet to a tank outlet and containing a water treatment material disposed...
6176258 Dual cam drive for water conditioner valve  
A water conditioner valve includes a main housing configured for providing fluid communication between a plurality of locations, and having first and second valve chambers, a main piston mounted...
6095192 Spool valve for fluid control  
A spool valve is provided with a stem portion that defines a fluid passageway formed by either (a) a single central support having a non-cylindrical curved surface shaped hydrodynamically, or (b)...
6070610 Fluid operated timer for a plurality of reservoirs  
A fluid operated timer includes an input for the fluid, a reservoir receiving fluid from the input, an actuator responsive to the fluid pressure in the reservoir reaching a threshold value, wherein...
6058956 Cycling self checking block valve  
Cycling, self-checking block valve system that continuously cycles such that the user of the block valve system can determine if the system is operational at all times. A dual port block valve body...
6056873 Management of a body of water  
The installation disclosed comprises a body of water, a pump, a filter and pipes connecting the body of water, pump and filter. Additional pipes lead from the pipe to the return pipe and to waste....
6019180 Method for evaluating the power output of a drilling motor under downhole conditions  
A procedure is described for determining the power output of a downhole drilling motor, when the motor is inside the wellbore. The technique uses stand-pipe pressure and fluid flow rate as the main...
5944052 Multiple outlets self-actuated irrigation valve  
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...
5910244 Adaptable control valve for fluid treatment system  
A control valve for a fluid treatment system, such as a water softener or a water filter, includes a manifold which mounts a pair of open-ended, cylindrical valve bodies having ports in fluid...
5879137 Method and apparatus for pressurizing fluids  
A high-pressure valve assembly having a valve body that defines a preferably cylindrical valve cavity, a fluid inlet, a fluid outlet and a plurality of valve ports; and a fluid pressure intensifier...
5853027 Apparatus and method for operating paint color valves in a paint spraying system  
An apparatus (10) and method for selecting a fluid material to be supplied to a material applicator (24) from a plurality of fluid materials (23), the material applicator being located in a...
5826607 Dual exhaust controller  
A dual exhaust controller for maintaining isolation between the flows of two different gases in a chamber. The controller includes first and second gas input valves connected between respective...
5762092 Hydraulic pressure-actuated irrigation water distribution valve apparatus  
A hydraulic pressure-actuated distribution valve apparatus is disclosed to have a valve body with a water entrance and a number of distribution water exits. The apparatus includes an irrigation...
5718569 Dual plunger cassette pump  
An IV pump actuates a disposable cassette having two parallel fluid paths that include first and second pumping chambers. The disposable cassette (12) has a housing(14) that includes a back portion...
5694963 Method and apparatus for freeze prevention of irrigation systems  
There is disclosed an apparatus for freeze prevention protecting an irrigation system. The response of the apparatus depends on environmental conditions. At a first temperature condition, the...
5522465 Method and apparatus for a safety system  
A method and apparatus for controlling a production facility containing a well that produces subterranean fluids and gas is disclosed. The production facility is connected to a receiving facility...
5473309 Apparatus for testing an irrigation system controller and method of testing irrigation systems  
An apparatus for testing the operation of an irrigation system is disclosed. The apparatus pinpoints defects in the irrigation system controller by simulating control signals and processing the...
5385207 Offshore well remote start-up system  
System for remotely controlling the start-up of a closed-in well. A radio signal transmitted to the well actuates a main flow control valve to provisionally commence flow from the well into a...
5368062 Gas supplying system and gas supplying apparatus  
A gas supplying system for supplying a corrosive gas or the like to a semiconductor manufacturing apparatus or the like. A plurality of kinds of component gases are introduced into a chamber and...
5363290 Irrigation controller  
An improved irrigation controller of solid state design utilizes a microcomputer which retains and executes a watering schedule input by a user through data input means. One of the parameters of...
5309942 Timer unit for controlling valves  
An inexpensive timer unit which can operate stably in the event of a power failure. The timer unit acts to switch the operation times of two valve mechanisms for opening and closing fluid passages....
5285809 Drain discharge device  
A drain discharge device for discharging effluent comprises a valve with a single outlet and a plurality of inlets that selectively connects the single outlet to one of inlets in turn. The inlets,...
5273070 Water treatment apparatus  
Water treatment apparatus having a raw water inlet and a treated water outlet and at least a first and second water treatment tank plus conduit means for passing water from the inlet to the outlet...
5222665 Fluid injection spray system  
A system is provided for introducing fluids into a wind stream. Such fluids may be used to cool the orchard during the late summer and early fall, to aid in prevention of frost damage during the...
5191937 Offshore well remote control system  
In a subterranean well for producing a production fluid flow through a flow line having a main control valve, a flow control system including means to remotely actuate the main flow valve to open...
5174335 Bidirectional vacuum valve  
To evacuate a vacuum chamber without stirring up particles in the chamber or associated piping, a pneumatically-actuated vacuum valve is used between the chamber and the vacuum pump. The valve...
5152319 Fluid distributor, especially for a pressure wave mattress  
A fluid distributor for sequentially distributing pressurized fluid from at least one inlet port to a plurality of distribution ports and exhausting fluid from said distribution ports to at least...
Matches 1 - 50 out of 377 1 2 3 4 5 6 7 8 >