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| Number | Title | Issue Date |
| 8147218 | Pneumatic motorized multi-pump system Motorized single-machine multi-pump apparatus and closed-loop methodology interconnected with a gas pipeline at a natural gas production well, using pressurized gas flow and differential pressure to drive a pumping system regulated by pneumatic controls using self-g... | 04/03/2012 |
| 8109737 | Reciprocating device with dual chambered cylinders A reciprocating device which may be operated either as a compressor or an engine. Each cylinder has a reciprocating piston connected to a piston rod. Dual cylinder chambers are located in each cylinder on opposite sides of the piston. The pistons are connected to a ... | 02/07/2012 |
| 7955058 | Reciprocating piston to piston energy pump This invention is a reciprocating piston to piston device that can function 1) to increase or decrease pressure in a hydraulic or pneumatic system with minimal energy loss or 2) as a hydraulic or pneumatic pump or motor. The input and output fluids may be the same o... | 06/07/2011 |
| 7413418 | Fluidic compressor A compressor system that is configured to compress the fluid from low pressure source to a higher pressure magnitude is powered from the same low pressure fluid source. The compressor system includes two piston assemblies that are coaxially coupled to one another, a... | 08/19/2008 |
| 7354252 | Pressure intensifier A pressure intensifier for fluids has an intensifier piston with a high-pressure piston and a low-pressure piston having a greater diameter than the high-pressure piston. The pistons are moveable in a high-pressure cylinder and a low-pressure cylinder, respectively,... | 04/08/2008 |
| 7326054 | Method and apparatus for drilling teeth with a pressurized water stream An apparatus and method are disclosed for boring into teeth to remove decaying tool matter using a high pressure jet of water. A system according to the invention may include a pressurized water source operably connected to an applicator used to target the water str... | 02/05/2008 |
| 7291565 | Method and system for treating a substrate with a high pressure fluid using fluorosilicic acid A method and system is described for treating a substrate with a high pressure fluid, such as carbon dioxide in a supercritical state. A process chemistry is introduced to the high pressure fluid for treating the substrate surface. The process chemistry comprises fl... | 11/06/2007 |
| 7287964 | Method and system for pumping powder, and powder coating apparatus In a pump system for supplying powder, in particular coating powder, to a powder coating apparatus, time controller is used to introduce compressed gas into a metering chamber as a function of the predetermined delay time elapsed since a predetermined operational po... | 10/30/2007 |
| 7287967 | High-pressure pump having small initial axial force of a clamping bolt A high pressure pump for preventing distortion of a sealing surface or a cylinder form. The high pressure pump has an intermediate member including a cylinder body having a pressurizing chamber communicated with a cylinder accommodating a plunger. Fluid in the press... | 10/30/2007 |
| 7284543 | Fuel injection system A fuel injection system includes (i) an injector for injecting gaseous fuel and liquid fuel into a cylinder of an internal combustion engine, (ii) a gaseous fuel supplying unit having a gaseous feel tank as a first high-pressure accumulating source for pressurizing ... | 10/23/2007 |
| 7255772 | High pressure processing chamber for semiconductor substrate A high pressure chamber comprises a chamber housing, a platen, and a mechanical drive mechanism. The chamber housing comprises a first sealing surface. The platen comprises a region for holding the semiconductor substrate and a second sealing surface. The mechanical... | 08/14/2007 |
| 7250374 | System and method for processing a substrate using supercritical carbon dioxide processing A method and system for processing a substrate in a film removal system. The method includes providing the substrate in a substrate chamber of a film removal system, where the substrate has a micro-feature containing a dielectric film on a sidewall of the micro-feat... | 07/31/2007 |
| 7237470 | Fluid power unit having closed circuit A fluid power unit has a cylinder in a housing, a piston slidable in the cylinder and dividing the cylinder into a retract side and an extend side, and a two-position control valve. The control valve has a spool and first and second pilots. The position of the spool... | 07/03/2007 |
| 7207780 | Multiple port dual diameter pumps A multiple port, dual diameter piston fluid dispensing pump which includes multiple input and output ports accessed by rotating at least one of the pistons and a dual or multiple diameter piston or set of pistons that cooperate so that they follow each other. The di... | 04/24/2007 |
| 7168928 | Air driven hydraulic pump An air driven hydraulic pump includes two opposed cylinders to either side of a center section. Two pneumatic pistons are slidable in the opposed cylinders and are coupled with one another by a common shaft extending through the center section. The pneumatic pistons... | 01/30/2007 |
| 7152679 | Downhole tool for deforming an object A downhole tool comprises a body defining a fluid chamber, a fluid outlet for directing fluid outwardly of the chamber, and an arrangement for producing a rapid reduction in the volume of the chamber, such that fluid in the chamber is displaced rapidly through the o... | 12/26/2006 |
| 7147442 | Automatic oil pump, with a valved pumping piston and a valved driving piston unit An automatic oil pump includes a drive chamber, having a reciprocal driving device, and an oil chamber, having a sucking device, located on two sides of a main body. The reciprocal driving device has a piston unit having a valve chamber at its center and a balance v... | 12/12/2006 |
| 7144228 | Cryogenic fluid delivery system A cryogenic fluid delivery system includes a pump having a pumping cylinder within which a sliding pumping piston is positioned. The pump also includes an actuating cylinder within which a sliding actuating piston is positioned and a supplemental linear actuator, su... | 12/05/2006 |
| 7140393 | Non-contact shuttle valve for flow diversion in high pressure systems A valve for redirecting flow in a supercritical fluid or other high pressure processing system is disclosed. In high pressure supercritical carbon dioxide (SCCO2) equipment for semiconductor wafer processing, a major hurtle in providing clean equipment and clean waf... | 11/28/2006 |
| 7134849 | Molded disposable pneumatic pump A mechanical pump having a unitary construction such that the fluid being pumped is prevented from leaking without requiring the use of discrete seal elements. The absence of discrete seal elements and integral coupling of various components of the pump substantiall... | 11/14/2006 |
| 7121810 | High-pressure pump having small initial axial force of a clamping bolt A high pressure pump for preventing distortion of a sealing surface or a cylinder form. The high pressure pump has an intermediate member including a cylinder body having a pressurizing chamber communicated with a cylinder accommodating a plunger. Fluid in the press... | 10/17/2006 |
| 7114928 | High-pressure fuel pump and assembly structure of high-pressure pump A high pressure pump for decreasing an initial axial force of a clamping bolt and preventing distortion of a sealing surface and a cylinder form. The high pressure pump has an intermediate member including a cylinder body. The cylinder body has a pressurizing chambe... | 10/03/2006 |
| 7059366 | Air bleed mechanism for a submersible turbine pump A manifold for a submersible turbine pump having an air bleed mechanism for removing air from a discharge chamber of the manifold. The manifold includes the discharge chamber that receives fuel pumped from an underground storage tank (UST), the air bleed mechanism, ... | 06/13/2006 |
| 6935539 | Device for the metered delivery of a viscous liquid A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs... | 08/30/2005 |
| 6904749 | Polyoxymethylene as structural support member and propellant A vehicle includes at least one polyoxymethylene structural support member. The polyoxymethylene structural support member includes a polyoxymethylene component that is a propellant that provides thrust to the vehicle upon pyrolysis or combustion of the polyoxymethy... | 06/14/2005 |
| 6790010 | Switching system for a reciprocating piston pump A pumping system. The pumping system has a cylinder pump, a first group of switching devices, and a second group of switching devices. The first group of switching devices enable the cylinder pump to pump the liquid by feeding the gas provided by the gas source into... | 09/14/2004 |
| 6386841 | Pneumatically operated hydraulic pump A pneumatically operated hydraulic pump includes a cylinder housing accommodating a main piston to subdivide the housing interior in two working chambers. The main piston is connected to a hydraulic piston for joint reciprocation so that the hydraulic pis... | 05/14/2002 |
| 6210131 | Fluid intensifier having a double acting power chamber with interconnected signal rods A fluid driven reciprocating apparatus having a double acting power chamber with signal rods serving as high pressure pistons, or to transmit mechanical power. The signal rods are connected to a double acting piston in the power chamber thereby eliminatin... | 04/03/2001 |
| 6158982 | Amplified pressure air driven diaphragm pump and pressure relief valve therefor An air driven diaphragm pump having two, opposed pumping cavities. A center section assembly between the pumping cavities includes a cylinder and a power amplifier piston. The power amplifier piston as well as the diaphragms are coupled with a common cont... | 12/12/2000 |
| 6079959 | Reciprocating pump Pumps of this invention comprise a pump housing having at least one pressurizing chamber disposed therein, and a pressurizing member is disposed within the pressurizing chamber. The pressurizing member has a body with a solid imperforate head at one end, ... | 06/27/2000 |
| 6062828 | Compressor for liquefied gas applications A compressor that uses liquefied gas at high pressure as a hydraulic medium for compressing gas from low pressure to high pressure. The compressor comprises a central liquid cylinder and two gas cylinders disposed adjacent opposite ends of the liquid cyli... | 05/16/2000 |
| 5984642 | Pressure intensifier A pressure intensifier for pressurization of a medium is provided, comprising a low-pressure cylinder (1), in which a low-pressure piston (2) is axially displaceable, and two high-pressure chambers (3, 4) which are each arranged coaxially with and on sepa... | 11/16/1999 |
| 5927954 | Amplified pressure air driven diaphragm pump and pressure relief value therefor An air driven diaphragm pump having two, opposed pumping cavities. A center section assembly between the pumping cavities includes a cylinder and a power amplifier piston. The power amplifier piston as well as the diaphragms are coupled with a common cont... | 07/27/1999 |
| 5683230 | Pressure medium driven device performing linear motion A pressure medium operated device generating to-and-fro motion to one or several pistons or a similar motion transmitting arm. The device includes a primary piston to which motion is brought in transmitting pressure medium alternately to both sides of the... | 11/04/1997 |
| 5626467 | Modular pump A modular air-driven pump includes an air motor and various sized fluid pumps which are interchangeably mountable to the air motor. The air motor includes first and second bulkheads, a motor cylinder held between the first and second bulkheads, and a moto... | 05/06/1997 |
| 5616005 | Fluid driven recipricating apparatus An apparatus comprising a pair of fluid driven pump assemblies in a back-to-back configuration to yield a bi-directional pump. Each of the pump assemblies includes a piston or diaphragm which divides a chamber therein to define a power section and a pumpi... | 04/01/1997 |
| 5588808 | Pump pressure multiplier A device for elevating a pressure acting on a liquid including a liquid pressure elevating mechanism for receiving liquid under a first positive pressure and at a selected volume of liquid per unit of time flow rate from a liquid source at an inlet port a... | 12/31/1996 |
| 5564913 | Air pressure pump with reversible power cylinder An air pressure pump with reversible power cylinder comprises a cylinder, a left cap and a right cap disposed at two sides of the cylinder. A piston passes through the cylinder. An air inlet pipe and two air outlet pipes connect the left cap. A collar has... | 10/15/1996 |
| 5520520 | Pneumatically operated double acting pump for viscous food stuffs A double acting pneumatically operated pumping assembly for pumping viscous fluids, especially food stuffs, is provided. The piston has an enlarged central portion integral with reduced diameter end portions. Inspection means, for example vent ports, are ... | 05/28/1996 |
| 5429681 | Electronic condiment dispensing apparatus An electronic condiment dispenser may dispense a plurality of condiments. The condiment dispenser may include a bag support module for holding a plurality of condiment supply bags. A pump regulator module may be connected to each condiment bag and may pum... | 07/04/1995 |
