Quotables
"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 |
| 8083204 | Fuel system and ecology valve for use therein A fuel system comprises a pressure raising valve operable to control communication between a fuel delivery line and an engine manifold line, and an ecology valve comprising a piston movable within a bore, the piston and bore together defining a control chamber and a... | 12/27/2011 |
| 8083205 | Fail safe pneumatically actuated valve with fast time response and adjustable conductance Apparatus and method for fail-safe high-speed-pneumatic valve is disclosed. Fail-safe dependability is provided by a spring-loaded normally-closed pneumatic actuator. When the spring-loaded actuator is pressurized, the normally closed mechanism is actuated to the va... | 12/27/2011 |
| 8079567 | Regulated valve assembly for fire extinguishing systems A valve assembly has a valve body having an inlet section for a pressurized fluid and an outlet. A piston is movable within the valve body between an open position and a closed position blocking fluid communication. The piston has an end section, a sealing section a... | 12/20/2011 |
| 8052116 | Quiet fluid supply valve A fluid power system includes a hydraulic machine. A pilot-controlled supply valve controls high-pressure fluid to the machine. The valve is coupled between the hydraulic machine and a high-pressure fluid source, and includes a control port for an actuation signal. ... | 11/08/2011 |
| 8020833 | Pressure gas release valve for fire suppression A two-step, self-regulating valve (16) controls gas flow from a gas cylinder (12) in a high pressure system. The valve (16) includes a valve body (24), a piston (26), a plug (28), a valve actuator (34), and a piston a... | 09/20/2011 |
| 7997556 | Fine adjustable firing valve A finely adjustable firing valve for rapidly discharging compressed air or compressed gas, for the purpose of generating a pressure wave in silos or containers of granular materials, comprising a pneumatic main valve (1), a pneumatic secondary valve (9... | 08/16/2011 |
| 7306195 | Anti-icing actuator assembly for pneumatic valve An actuator assembly for use in conjunction with a pneumatic valve assembly of the type which includes an airway having an inlet port, an outlet port, and a valve disposed within the airway and configured to be moved between an open position and a closed position, c... | 12/11/2007 |
| 7273205 | Positive pressure actuated aerator valve assembly A positive pressure actuated aerator valve assembly adapted to discharge compressed gas into the chamber of a bulk material handling structure. The aerator valve assembly includes a housing and positive pressure actuated valve. The housing includes a chamber adapted... | 09/25/2007 |
| 7219691 | Control valve positioner mounting system A positioner for a control valve assembly is disclosed wherein the positioner is mounted internally to thus protect the positioner from damage stemming from environmental, impact, or other outside influences. Accordingly, not only can the position of the valve be ac... | 05/22/2007 |
| 7175155 | Control valve apparatus and pressure circuit The control valve apparatus holds a seat valve member in a position seated on a valve seat to thereby prevent a backward flow even if the pressure in the inlet chamber side becomes lower than the pressure in the outlet chamber side. With a pilot control valve member... | 02/13/2007 |
| 7143785 | Microfluidic large scale integration High-density microfluidic chips contain plumbing networks with thousands of micromechanical valves and hundreds of individually addressable chambers. These fluidic devices are analogous to electronic integrated circuits fabricated using large scale integration (LSI)... | 12/05/2006 |
| 7143956 | Suck back valve A suck back valve includes an ON/OFF valve mechanism which opens/closes a fluid passage by displacing a valve member together with a first piston under an action of a pressure fluid supplied into a first cylinder chamber, and a suck back mechanism which has a suctio... | 12/05/2006 |
| 7139643 | Control device with servocontrol loop, particularly an electro-hydraulic flight control actuator A control device includes a main servocontrol loop having a servocontrolled system, and a compensation device on the input side of the control device. The control device includes an internal loop that receives a first signal derived from the main servocontrol loop a... | 11/21/2006 |
| 7139219 | Hydraulic impulse generator and frequency sweep mechanism for borehole applications This invention discloses a valve that generates a hydraulic negative pressure pulse and a frequency modulator for the creation of a powerful, broadband swept impulse seismic signal at the drill bit during drilling operations. The signal can be received at monitoring... | 11/21/2006 |
| 7134447 | Gas pressure regulator A gas pressure regulator has an inlet for connection to an upstream gas line for flow of gas into the regulator under pressure and an outlet for connection to a downstream gas line for flow of gas out of the regulator at a reduced pressure. A pilot mechanism deliver... | 11/14/2006 |
| 7032789 | Solenoid using color-coded visual indicia in a liquid dispensing system A liquid dispensing system and methods including color-coded visual indicia to assist an operator in the proper selection of the components and in the configuration of those components in the system during setup, maintenance and diagnostics. Color-coded indicia is a... | 04/25/2006 |
| 7021602 | Valve, actuator and control system therefor A hydraulic control system for a valve actuator comprising a first control valve that regulates fluid communication from a fluid pressure source to a first fluid supply tank that is fluidly connected to the valve actuator. A second control valve regulates fluid comm... | 04/04/2006 |
| 7000641 | Inflatable stopping bags A method of controlling the fluid pressure of an inflatable stopping bag used to block the fluid flow through a fluid conduit comprises pressurising the bag using a pressure regulator which operates to regulate the pressure of the bag as a function of the instantane... | 02/21/2006 |
| 6986362 | Pilot operated relief valve Disclosed is a pilot operated relief valve, in which a balance system is provided to offset a tank pressure exerted on a piston, so that a setting pressure of a pilot poppet is not changed even when the tank pressure is changed, and thus a function of the relief val... | 01/17/2006 |
| 6978748 | Hydraulically controlled actuator for actuating gas exchange valve on the exhaust side of an internal combustion engine A hydraulically controlled actuator for actuation of an exhaust-side gas exchange valve of an internal combustion engine, containing a control piston that is displaceable within a cylinder and, with piston sides facing away from one another, delimits pressure chambe... | 12/27/2005 |
| 6971625 | Pilot operated valve with variable piston orifice A valve assembly having a valve body, a piston, a modulating plug, a valve cover adjoining the valve body, and a throttling member. The valve body has an inlet and outlet port, a partition with a valve seat separating the valve body into a first and second flow pass... | 12/06/2005 |
| 6964266 | 3/2 Directional-control valve The invention relates to a 3/2-port directional-control valve for controlling the injection of fuel in a common rail injection system of an internal combustion engine, with a first switched position in which an injection nozzle is connected to a fuel return and with... | 11/15/2005 |
| 6957127 | Dynamic current-to-pneumatic converter and pneumatic amplifier A dynamically balanced pneumatic relay amplifier and a current-to-pneumatic converter are disclosed. The relay has a balance plug, a supply plug positioned on top of the balance plug, a bead chain connecting the balance plug and the supply plug, and a vent plug posi... | 10/18/2005 |
| 6929237 | Valve actuation system and methods for pipeline valves The invention is therefore directed to a rotary valve actuating system coupled to a pipeline for a pressurized fluid, the actuating system being coupled to the rotary valve to selectively cause operation of the valve. The valve actuating system comprises at least tw... | 08/16/2005 |
| 6871802 | Self-modulating inert gas fire suppression system A relatively low pressure inert gas hazard suppression system (20) is provided which is designed to protect a room (22) or the like from the effects of fire or other hazard. The system (20) includes a plurality of pressurized inert gas cylinders... | 03/29/2005 |
| 6820641 | Internally piloted dome loaded regulator The internally piloted dome loaded pressure reducing regulator includes a regulator body with a main valve portion and a pilot valve portion. The inlet is fluidly connected to the main valve bore which in turn is connected to the pilot valve bore. Each of the pilot ... | 11/23/2004 |
| 6814837 | Controlled gas supply line apparatus and process for infilm and onfilm defect reduction According to one aspect of the disclosure, the present invention provides methods and arrangements for controlling supply process gas to a process chamber for use in the manufacturing industry. Methods include controlling the operation of a valve coupled to the supp... | 11/09/2004 |
| 6786231 | Fluid flow regulator with restrictor pin A fluid flow regulator having a chamber comprising a port opening and a tapered pin disposed within the opening, for controllably restricting the cross-sectional flow area through the port. The tapered pin moves relative to the bore of the port that it is disposed i... | 09/07/2004 |
| 6736093 | Device for controlling at least one gas-changing of an internal combustion engine A device for controlling at least one gas-changing valve (10) of an internal combustion engine includes a valve adjuster (20) with an adjusting piston (16) limiting two pressure chamber (17, 18). The lower pressure chamber (18) is ... | 05/18/2004 |
| 6708772 | Container valve with tripping device for stationary fire extinguishing plants A container valve for fixed fire extinguishing systems comprises a valve body (12), a closure piston (26), one sealed end of which is introduced into the release chamber (24) and the opposite end of which has a sealing surface which can be press... | 03/23/2004 |
| 6702248 | Blast aerator with springless, pneumatically dampened actuator A quick acting blast aerator comprising a spring-less actuator triggered by an exhaust valve. The actuator valve comprises a tubular body, an exhaust vent defined in the body, a dampening passageway, and a piston slidably disposed therewithin for movement... | 03/09/2004 |
| 6666277 | Low pressure pneumatic and gate actuator A pneumatic actuator having AND gate logic characteristics is disclosed. The actuator has three chambers each divided into two chamber portions by respective flexible diaphragms. One of the diaphragms acts as a valve closing member and controls the flow o... | 12/23/2003 |
| 6585226 | Two-way valve A first displacement mechanism disposed on the axially lower side includes a first piston, a piston rod displaceable integrally with the first piston, and a diaphragm connected to the piston rod. A second displacement mechanism disposed on the axially upp... | 07/01/2003 |
| 6557819 | Roll seal control valve A water system uses a pressure reservoir of an extremely small size. A valve device is placed between a water pump and the pressure reservoir. The valve device has a constant outlet pressure to limit the flow from the pump at high pressures. The pump is t... | 05/06/2003 |
| 6536533 | Low pressure actuator for dry sprinkler system Embodiments of a low-pressure actuator, for use in a dry, low-pressure, pressurized gas, liquid fire control and suppression sprinkler system, with a pneumatic/electric double interlock mechanism, which requires that two separate events, such as dischargi... | 03/25/2003 |
| 6454237 | Air activated internal valve An air actuated internal valve for a cargo container. The valve generally includes a valve base having a valve disk seat and a line connector extending therefrom. A valve stem having a first end is fixed to the valve base and a valve disk is slidingly mou... | 09/24/2002 |
| 6390442 | Two-port valve There is provided a two-port valve in which a deviation of a degree of parallelization of a valve member and a valve seat can be corrected automatically, which has excellent airtightness, and in which assembly and replacement of the valve member are easy.... | 05/21/2002 |
| 6315265 | Variable valve timing actuator The invention involves a variable valve timing actuator that allows the opening and closing of engine valves to be variably and individually controlled without using a camshaft. The invention utilizes energy regeneration so energy delivered to a valve whi... | 11/13/2001 |
| 6276658 | Roll seal control valve A water system uses a pressure reservoir of an extremely small size. A valve device is placed between a water pump and the pressure reservoir. The valve device has a constant outlet pressure to limit the flow from the pump at high pressures. The pump is t... | 08/21/2001 |
| 6129332 | Hydraulic plunger valve A hydraulic control valve includes a valve housing defining a valve chamber having first and second axially spaced valve seats of identical diameters, a control cylinder and first and second end cylinders. The valve chamber, the control cylinder and the f... | 10/10/2000 |
