"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7353841 | Relative pressure control system and relative flow control system Provided is a relative pressure control system has a simple configuration, but enables accurate regulation of a division ratio of an operation gas, and concurrently makes it possible to securely drain the operation gas from an operation gas pipeline in case of emerg... | 04/08/2008 |
| 7311115 | Collection valve for water reclamation system A collection valve for use in a water reclamation system includes a drain pipe and a collection port assembly. The drain pipe includes an inlet port connectable to a drain line from which gray water is supplied, a collection inlet, and an outlet port. The collection... | 12/25/2007 |
| 7007707 | Mass flow ratio system and method A system for dividing a single mass flow, including an inlet adapted to receive the single mass flow and at least two flow lines connected to the inlet. Each flow line includes a flow meter and a valve. The system also includes a controller programmed to receive a d... | 03/07/2006 |
| 6973975 | Universal transportable compressed air foam fire fighting system A compressed air/foam fire fighting system which is sufficiently compact to be carried on the bed of a pick-up truck includes a water tank, a pump for providing water at substantial pressure to a water conduit, an engine for driving the pump, a foam reservoir includ... | 12/13/2005 |
| 6874536 | Gas supply apparatus An apparatus for supplying pressurized gas to a plurality of gas outlets from an upstream gas supply, in which each of the plurality of gas outlets in use is connected to a common gas feed line via a respective valve, each valve being adapted to close to prevent the... | 04/05/2005 |
| 6874503 | Fluid flow regulation system A fluid flow regulation system has an inlet, an outlet, and an adjustable flow regulator connected between the inlet and the outlet. The regulator has a closed position at which a leakage gas flow through the system is established. An extraction device is provided f... | 04/05/2005 |
| 6581623 | Auto-switching gas delivery system utilizing sub-atmospheric pressure gas supply vessels An auto-switching sub-atmospheric pressure gas delivery system, for dispensing gas to a gas-consuming process unit, e.g., a semiconductor manufacturing tool, without the occurrence of pressure spikes or flow perturbations.... | 06/24/2003 |
| 6532978 | Method and device for regulating individual sub-flows of a system for conveying fluid media The invention relates a method and a device for regulating individual sub-flows of a conveying system while the main flow is conveyed in a constant manner. The aim of the invention is to provide a method and a device which enable the sub-flows of the conv... | 03/18/2003 |
| 6516826 | Hydraulic flow valve A hydraulic flow valve apparatus having a valve body providing a valve body cavity with an eccentric sidewall. The sidewall terminates at a frontal surface of the valve body with a conical bottom surface defining a flow aperture at its apex. A sealing sha... | 02/11/2003 |
| 6418954 | System and method for dividing flow A system for dividing a single flow of gas into two or more secondary flows of known, precise values, without requiring a high upstream pressure. The system includes an inlet for receiving the single gas flow, and first and second flow lines connected to ... | 07/16/2002 |
| 6328072 | Universal safety device and process for protecting a pipeline A safety device for protecting a fluid pipeline (1) from an excessive flow of the fluid running through it. The device includes a body (2) delimited by a tubular wall (20), having an upstream end (21) and a downstream end (22) and being selectively insert... | 12/11/2001 |
| 5927321 | System for measuring and controlling gas mass flow A system for measuring and controlling the mass flow of a gas of variable characteristics within a pipe by a metering valve, wherein a Coriolis mass flow meter mounted in the pipe is connected to the valve processor unit to calculate a correction factor f... | 07/27/1999 |
| 5924432 | Dishwasher having a wash liquid recirculation system A dishwasher having a fluid recirculation system which operates in a wash mode for spraying liquid onto objects supported on dishwasher upper and lower racks. The dishwasher includes a pump having a pump impeller disposed within a pump chamber for supplyi... | 07/20/1999 |
| 5782260 | Hydraulic flow priority valve A flow priority valve receives input fluid flow and divides the fluid flow between a primary device and a secondary device. The valve comprises a valve body have a bore formed therein, the bore having first and second ends and first and second annular cha... | 07/21/1998 |
| 5694967 | Multi-port proportional flow control valve A flow control valve for multiport injection of pressurized liquid through an array of injection nozzles for a gas turbine engine is connected by nozzle ports to the engine. In accordance with a first embodiment, the valve includes a slidable valve spool ... | 12/09/1997 |
| 5377717 | Hydraulic flow control valve assemblies A hydraulic flow control valve assembly comprises an inlet port for input fluid flow from a pump, a first outlet port for output fluid flow to a power steering unit, a second-outlet port for output fluid flow to an accumulator of a braking system, and an ... | 01/03/1995 |
| 5307833 | Method and apparatus for automatically transferring and measuring wet steam between priority and secondary users A system by which a supplier of wet steam may allocate and measure the mass flow rate and quality of steam delivered to a demand user and one or more secondary users with the wet steam delivered to each user being measured for purposes of billing. Pressur... | 05/03/1994 |
| 5284020 | Fuel supply system for gas turbine engines A system for supplying fuel to a plurality of fuel injectors of a gas turbine engine is disclosed having first and second fuel distributors and a fuel transfer device which enables fuel to flow from the fuel source to the first and second fuel distributor... | 02/08/1994 |
| 5165233 | Charge pressure priority valve A charge pressure priority valve for supplying a flow of sufficient pressure to energize an auxiliary implement while supplying a nearly constant pressure flow to a hydrostatic fluid circuit includes a valve body having an interior bore with a pump inlet ... | 11/24/1992 |
| 5165442 | Differential valve A fire fighting foam proportioner for use in providing precise proportioning of foam to fire fighting liquid, e.g. water, is disclosed. It includes a tank for the storage of foam concentrate which is loaded using a hand pump. The storage tank is coupled t... | 11/24/1992 |
| 4924900 | Adjustable ratio mixing valve An adjustable ratio mixing valve is disclosed which incorporates an automatic pressure compensating arrangement whereby the fluid pressure immediately upstream of each of the metering orifices is maintained in substantial equilibrium. This arrangement the... | 05/15/1990 |
| 4914758 | Fresh water control system and method The method of controlling operation of a plurality of fixtures comprises the steps of establishing a maximum liquid flow rate and determining which of the fixtures required operation. A determination is then made of the liquid flow rate of the fixture req... | 04/10/1990 |
| 4821625 | Valve device for controlling the delivery of pressurized liquid to two separate hydrostatic motors Valve device for controlling the delivery of pressurized fluid from a common pump to two hydrostatic working motors, one of which is subjected to a load dependent on the speed of the other motor. A volume flow regulator is disposed in the flow path betwee... | 04/18/1989 |
| 4805659 | Method of driving a centrifuge and device for carrying out the method In centrifuges that concentrate liquids that contain suspended solids and wherein the concentrated solids are removed from the centrifuge at a constant rate, the concentration of solids leaving the centrifuge must be regulated. Some of the concentrated so... | 02/21/1989 |
| 4772387 | Device for conditioning water containing calcium carbonate and installation constructed with this device The present invention relates to a device for conditioning water containing calcite and an installation constructed with this device. This device essentially comprises an inner tubular element (10), an outer tubular element (11) and two end tips (12 and 1... | 09/20/1988 |
| 4465089 | Flow divider and combiner for traction circuits A flow divider and combiner for delivering and receiving fluid under pressure to and from independent motors which are linked together for operation by an external force. The unit includes sliding flow control spools and relief valves operable within an o... | 08/14/1984 |
| 4402336 | Hydraulic flow dividing and integrating equipment The invention relates to hydraulic flow dividing and integrating equipment, having a regulating slide valve in its flow path and calibrated throttlings in an admission channel of the flow path. The calibrated throttlings are adjustable as a function of en... | 09/06/1983 |
| 4337787 | Pressure regulating hydraulic circuit and valve For work vehicles, for example, cold weather can be a problem. Disengaging the vehicle clutch (26) aids starting by reducing engine loads during starting. Where the clutch (26) is hydraulically actuated, it can be disengaged by keeping fluid pressures bel... | 07/06/1982 |
| 4298019 | Method and system for controlling the fluid level in a drain tank A method and system for allocating fluid flow draining from a fluid utilizing apparatus to first and second fluid sinks. The fluid flow is entirely routed to the first fluid sink for drain flow rates less than a predetermined flow rate and to the second f... | 11/03/1981 |
| 4278104 | System for controlling the number of waste liquid disposal units in operation A system for controlling the number of waste liquid disposal units in operation is disclosed in which the amount of waste liquid to be produced during a predetermined period of time is forecast, and the forecast result is used to calculate the required mi... | 07/14/1981 |
| 4254791 | Flow rate regulator There is provided an in-line regulator for pressurized fluids. The regulator comprises a regulator sleeve disposed in a tubular, fluid-carrying line or in constituent parts of the line and is provided with at least one wall orifice through which the line ... | 03/10/1981 |
| 4121601 | Flow compensated divider valve A hydrostatic parallel circuit drive system on a vehicle which drives a pair of hydraulic wheel motors which are supplied by a single pump source through a divider valve which senses the flow rate to each of the motors, and when the flow rates to the two ... | 10/24/1978 |
| 4108198 | Multirotary energy conversion valve A multirotary energy conversion valve comprising inlet and outlet passages interposed by meshing pairs of inlet and outlet rotors of unequal constant volume displacements with an enclosed channel in between for fluid energy conversion with additionally at... | 08/22/1978 |