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| Number | Title | Issue Date |
| 6923364 | Method for manufacturing air compressor assembly A method for manufacturing an air compressor assembly including, between a tank welding step and a final assembling step, a step of submerging a welded tank into a dip tank that contains cooling liquid treated with a corrosion inhibitor. In a preferred embodiment, i... | 08/02/2005 |
| 6923916 | Liquid chromatograph pump and control method therefor In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between... | 08/02/2005 |
| 6923164 | Fuel supply apparatus A fuel supply apparatus capable of following the positional variations of the bottom side of a fuel tank through a simple construction and improved in terms of ease of assembly in the fuel tank. The apparatus includes a fuel pump body in which a filter-integrated pu... | 08/02/2005 |
| 6924746 | Device and method to establish temporal correspondence in multiple sensor configurations A sensor concentrating system centralizes communication between multiple parameter sensing devices and an application host. As a peripheral device, the sensor concentrating unit establishes a temporal correspondence between range data acquired from multiple optical ... | 08/02/2005 |
| 6920942 | Method and apparatus for directly controlling pressure and position associated with an adjustable choke apparatus A hybrid choke control system wherein the traditional choke experience is manifest in auditory and visual feedback mechanisms which are emulated by a digital control system enabling direct control of either position or back pressure associated with an adjustable cho... | 07/26/2005 |
| 6921253 | Dual chamber micropump having checkvalves A micropump has two chambers separated by an actuator for causing fluid to flow in the chambers. Each chamber is equipped with a ball that acts as a valve for allowing flow in a desired direction. The balls are heavier than the fluid being pumped, and reside at an i... | 07/26/2005 |
| 6920795 | Adapter for coupling a sensor to a fluid line An apparatus for sensing one or more physical characteristics of a fluid flowing in a fluid line, in one embodiment having an isolator block mounted onto a fluid line and in another embodiment, having an adapter plate coupled with isolator plate mounted onto a fluid... | 07/26/2005 |
| 6918252 | Method of and apparatus for cooling a seal for machinery A method is provided for cooling a seal located in a wall of a chamber and through which a movable shaft passes, the seal being heated by hot pressurized vapor that leaks through the seal into the chamber and internal friction. The method comprises the steps of: pro... | 07/19/2005 |
| 6920203 | Method and apparatus for selectively attenuating a radiation source A technique for selectively attenuating a radiation exposure in which a configurable collimator is employed between the radiation source and the radiation target. The configurable collimator typically comprises an array of independently addressable elements each of ... | 07/19/2005 |
| 6915765 | Piston engine assembly A variable compression piston assembly includes a plurality of pistons, a transition arm coupled to each of the pistons, and a rotating member mounted for pivoting movement to slide along an axis of the drive member. Movement of the rotating member relative to the d... | 07/12/2005 |
| 6913446 | Method for improving the efficiency of a variable displacement pump An auxiliary solenoid controlled variable displacement power steering pump, hydraulic systems incorporating same, and method for improving the efficiency of variable displacement power steering pumps. In one embodiment, a rotor is arranged within a pump body, and a ... | 07/05/2005 |
| 6913447 | Metering pump with varying piston cylinders, and with independently adjustable piston strokes A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cyli... | 07/05/2005 |
| 6910869 | Valveless micropump A valveless micropump includes a hollow pump chamber having a driving element coupled thereto, an inlet channel coupled to the hollow pump chamber, and an outlet channel coupled to the hollow pump chamber. The inlet channel, the hollow pump chamber, and the outlet c... | 06/28/2005 |
| 6910510 | Portable, cryogenic gas delivery apparatus A portable, cryogenic gas delivery apparatus includes a chamber which contains cryogenic material, such as oxygen, in both liquid and gas phases. A probe is mounted to move relative to the chamber in response to variations in pressure in the gas phase within the cha... | 06/28/2005 |
| 6910332 | Thermoacoustic engine-generator A thermoacoustic engine-generator that converts waste heat into electrical power. Thermal energy is converted to useful work via temperature-pressure amplification of periodic acoustic traveling waves in a compressible working fluid which cause the armature of a lin... | 06/28/2005 |
| 6908289 | Fuel pump with automatic shutoff A pressure sensor subsystem measures the pressure within a fuel pump and outputs an under-pressure signal when the measured pressure is below a predetermined threshold pressure value. A temperature sensor subsystem measures the temperature within the fuel pump and o... | 06/21/2005 |
| 6905314 | Pump having flexible liner and compounding apparatus having such a pump A pump has a flexible liner which is expanded and contracted by application of positive and negative fluid pressure for receiving and discharging fluent material. The liner is received in a rigid shell which defines the maximum volume received. In discharging fluent... | 06/14/2005 |
| 6902380 | Vacuum pump with pump rotor pairs and permanent magnet motor A vacuum pump has a casing having an inlet port and an outlet port, and a pair of confronting pump rotors which are provided inside the casing and synchronously rotatable for drawing in a gas from the inlet port and discharging the gas from the outlet port. A motor ... | 06/07/2005 |
| 6899527 | Closed-drift hall effect plasma vacuum pump for process reactors A closed-drift Hall effect plasma vacuum pump includes one or more pumping conduits which are linked with a radial magnetic field. The magnetic field separates a plasma from a plasma at a higher pressure which is formed by cross-field plasma transport from a plasma ... | 05/31/2005 |
| 6893221 | Fan control A method for controlling fan operation that includes detecting a stopped fan and attempting to start the stopped fan. The method includes attempting to start the stopped fan again after at least one first time interval when the fan does not start. The method include... | 05/17/2005 |
| 6890157 | Matching or not matching flow rates in two fluidly-unconnected flow paths A flow rate of unconnected first and second fluid flows is matched or not matched, such as, but not limited to, matching or not matching the flow rate of the replacement water stream with the waste water stream in kidney dialysis. First and second flow paths are int... | 05/10/2005 |
| 6890156 | Reciprocating pump control system A pumpjack speed control system includes a user interface, a controller and a variable speed drive. The user interface includes a mathematical representation of the pumpjack geometry which permits the conversion of rod speed profiles to crank speed profiles. ... | 05/10/2005 |
| 6884040 | Multi pumping chamber magnetostrictive pump A positive displacement pump includes a magnetostrictive actuator. A single actuator drives multiple pumping chambers. The pump may include two pumping chambers driven in phase by the linear expansion of the actuator at both its ends. The pump may include a third pu... | 04/26/2005 |
| 6881040 | Multi-stage screw compressor unit accommodating high suction pressure and pressure fluctuations and method of operation thereof A multi-stage screw compressor unit and method of operation thereof are provided, which enable operation with high efficiency always even when suction or discharge pressure fluctuates widely, the compressor unit comprising a combination of a compression stage provid... | 04/19/2005 |
| 6881043 | Injection apparatus incorporating clamping and squeezing members for pumping liquid through flexible tubing A piston pump propels liquid through a lumen of a flexible tube segment. The pump includes a first tube clamping member, a first set of tube squeezing members, a second tube clamping member, a second set of tube squeezing members and a synchronizing arrangement for ... | 04/19/2005 |
| 6877962 | Dishwasher pump mounting assembly A dishwasher pump mounting assembly is provided, and includes a pump mounting plate which is supported by the bottom wall of the dishwasher tub and extends through a hole in the bottom wall. A plurality of locking members secure the pump mounting plate to the bottom... | 04/12/2005 |
| 6874993 | Method for controlling an electric pump A control method for an electric pump adapted to supply pressurised operating fluid to actuators of an automatic transmission in order to cause the opening/closing of the clutch and the selection and engagement of the gears, in which the stage of supply of a voltage... | 04/05/2005 |
| 6872060 | Pump having a port for drawing air or fluid A pump includes a cylinder housing having a mouth for a fluid to flow out of the housing and a port for the fluid to flow into the housing, a piston slidably engaged in the housing. A tube is coupled to the piston for allowing the fluid to flow out through the tube ... | 03/29/2005 |
| 6869274 | Method of reducing pressure peaks in a fuel injector A multiple stage pump having valves upstream from each respective pump in a same line thereof. The respective lines then merge into a common line. The multiple stage pump prevents pressure variations. The multiple stage pump includes a first pump in a first stage an... | 03/22/2005 |
| 6869273 | Microelectromechanical device for controlled movement of a fluid A microelectromechanical (MEM) device for controlled movement of a fluid. The device includes a chamber having a heating element, an inlet, and a constricted egress channel. ... | 03/22/2005 |
| 6857858 | Device and method for controlling piston position in linear compressor Device and method for controlling a piston position in a linear compressor, having a power source, a triac, and a motor, the device including a current phase detecting part for detecting a current switched at the triac, integrating the current, and generating a firs... | 02/22/2005 |
| 6858254 | Easily loaded and unloaded getter device for reducing evacuation time and contamination in a vacuum chamber and method for use of same A getter device is shaped like a substrate used in a deposition process. Embodiments of the device include a powdered getter material coated onto one or both sides of a support with a narrow rim portion left uncoated so that the device can be manipulated by automati... | 02/22/2005 |
| 6854962 | Pump system with high pressure restriction A pumping system for a fuel injection system includes a body defining a high pressure pumping chamber, a plunger, a high pressure outlet, a high pressure fluid line connecting the pumping chamber to the outlet, a control valve along the fluid line, and a valve and r... | 02/15/2005 |
| 6854517 | Electric submersible pump with specialized geometry for pumping viscous crude oil A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump... | 02/15/2005 |
| 6852545 | Micropipette and dividedly injectable apparatus A micropipette is provided including at least one substrate, an inlet port through which a sample is delivered from the outside, a cavity to be poured and filled with the sample, an introduction hole, and an injection port for expelling the sample are formed on the ... | 02/08/2005 |
| 6851938 | Magnetic pumping system A magnetic pumping system includes a pump, capable of urging a fluid therefrom during a forward stroke and a return stroke, having a piston disposed within a cylinder defined by a pump body, and a driver disposed external to the pump body. The driver is capable of m... | 02/08/2005 |
| 6851935 | Above the motor bellows expansion member for a submersible pump A multi-diameter bellows is provided in a seal section of a submersible pump to assist in allowing expansion of dielectric oil within the submersible pump, to equalize the casing annulus pressure with the internal dielectric motor fluid and to isolate the well fluid... | 02/08/2005 |
| 6851934 | Stroke control apparatus of reciprocating compressor and method thereof In a stroke control apparatus of a reciprocating compressor and a method thereof, the stroke control apparatus of the reciprocating compressor includes a reciprocating compressor, a current detecting unit for detecting a current flowing in a motor of the reciprocati... | 02/08/2005 |
| 6848888 | Sensor for a variable displacement pump A sensor for a variable displacement pump is provided. The pump has a housing containing a swashplate that is adapted to rotate about an axis. The sensor includes a magnet connected to the swashplate to rotate with the swashplate. A semiconductor chip is disposed pr... | 02/01/2005 |
| 6846161 | Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use Blood component processing systems and methods are coupled to a blood component processing device. The systems and methods include a fluid circuit that comprises at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the p... | 01/25/2005 |
