"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 7390310 | Shunt valve locking mechanism A locking assembly is provided to simply and effectively prevent any unintentional adjustment of the adjustable valve mechanism in a fluid flow control device, without compromising the function of the device. The locking assembly generally includes at least one grip... | 06/24/2008 |
| 7331536 | Shower head A shower head includes a main body formed with a chamber communicating with a water inlet at the upper end. The main body has its lower end formed with central water outlets and peripheral water outlets and has its interior installed with a water-separating unit wit... | 02/19/2008 |
| 7159845 | Bearing module for an exhaust gas recirculation valve A bearing module for a pintle valve including a pintle bearing, bearing spring, and two-part housing. The bearing has an axial face for sealing against an inner axial surface of the housing. The bearing diameter is less than the diameter of the housing, permitting t... | 01/09/2007 |
| 7159731 | Air purge valve and filter pump cover employing same A filter pump cover according to the invention comprises a filter cap, an air purge valve, and a filter cap retainer. An air purge valve according to the invention is comprised of a valve cap, a screw-threaded portion, and a valve stem having one or more outward-fac... | 01/09/2007 |
| 6951632 | Microfluidic devices for introducing and dispensing fluids from microfluidic systems The present invention provides microfluidic devices, systems and methods for using the same, which facilitate the introduction of fluid to and from a microfluidic channel located within the microfluidic devices. ... | 10/04/2005 |
| 6902704 | Injection pump assembly for a combinatorial reactor and related method An injection pump assembly 10 in a chemical delivery system for simultaneously delivering reagents into a combinatorial reactor system having multiple injectors. The assembly 10 has a plurality of injectors 12, each injector 12 being in f... | 06/07/2005 |
| 6516763 | Method of controlling a device that varies the valve control times an internal combustion engine, especially of a camshaft adjusting device with hydraulically releaseable start lock A method of actuating a device for varying the valve timing of an internal combustion engine without jamming of the locking element during starting of the internal combustion engine, the solenoid of the hydraulic valve is at first energized through a numb... | 02/11/2003 |
| 6192931 | Damper blade control A device for controlling the movement of a damper mounted in a housing includes a shaft rotatably secured to the damper for pivoting the damper between an open position and a closed position. A lever arm is mounted on the shaft for rotation therewith and ... | 02/27/2001 |
| 6068751 | Microfluidic valve and integrated microfluidic system A microfluidic delivery system (20) and microfluidic system (100) control flows of a liquid or a gas through elongated capillaries (62, 126) that are enclosed along at least one surface by a layer (42, 114) of a malleable material. An electrically-powered... | 05/30/2000 |
| 6045118 | Faucet cartridge having a plane shutter member A cartridge for a one-way hydraulic faucet of the type having a plane shutter member includes a cartridge body having a bottom portion with a hollowed cylindrical seat housing a sleeve packing provided with elastic pushing elements; the plane shutter memb... | 04/04/2000 |
| 5941272 | Three way universal valve A valve assembly for inflatable bladders, including beds, balls, toys, and other inflatable objects includes a locking mechanism within the valve for releasably holding the valve opened. The valve acts in three distinct ways. In a first way the valve is c... | 08/24/1999 |
| 5749969 | Fluid dispensing system A nozzle actuating and adjustment system for applying sealant to a can lid member comprising a nozzle which has a sealant dispensing opening, a needle valve, a needle valve seat surface and a sealant flow passage for enabling flow of sealant material onto... | 05/12/1998 |
| 5489226 | Hydraulic assist device for marine propulsion unit A hydraulic device for interposition between an outboard propulsion device and a watercraft transom for controlling the trim position of the propulsion device, for permitting the propulsion device to pop up when an underwater obstacle is struck and to ret... | 02/06/1996 |
| 5465939 | Directional control assembly for an air winch A mechanical limit control device for adjustably halting the operation of a winch at preset points including a proportionally driven flexible cog belt providing a compact conformable configuration having projections which operate a snap action air valve t... | 11/14/1995 |
| 5133938 | Lockable valve mechanism for sample pouch A lockable valve mechanism for introducing a liquid sample into an associated reaction vessel includes a valve body, and a valve member rotatably mounted thereon. The valve member is movable from an open position, wherein inlet and outlet passages of the ... | 07/28/1992 |
| 4669360 | Power steering system An input shaft and an output shaft can rotate relative to each other. Pressure supplied to a pressure-responsive actuator depends on the axial position of a movable valve member. A transmission arrangement serves to move the valve member only in the axial... | 06/02/1987 |
| 4523737 | Sleeve valve actuator means An actuator means is provided for a sleeve type of valve wherein a cable or flat band is caused to rotate one end of a sleeve valve with respect to a fixed second end. The relative rotation can be accomplished to operate the valve and can be provided by a... | 06/18/1985 |
| 4509556 | Flow control for valve interface A flow control for base mounted valves having a number of ports that extend through it and valve elements that are positioned for directly controlling the flow through at least certain of the ports. The valve elements include operators that are accessible... | 04/09/1985 |
| 4211147 | Servo-control valve for a linear hydraulic motor A servo-control valve for a linear hydraulic motor wherein the control valve piston is isolated from the side loading of a cam and roller by employing a cam follower plunger, as a separate detached element coaxial with the piston. The valve piston and the... | 07/08/1980 |
| 4176522 | Torque monitor A torque responsive apparatus for controlling a fluid actuated control device includes a first shaft connected to a drive motor and a second shaft connected to the first shaft through a coupling device that controls fluid pressure in a hydraulic control s... | 12/04/1979 |