| IDEX Health & Science LLC Patent applications |
| Patent application number | Title | Published |
|---|
| 20120119127 | ROTARY SHEAR VALVE ASSEMBLY WITH A POLYMER INSERT DEVICE - A multi-position rotary shear valve assembly having a metallic or ceramic stator device and a metallic or ceramic rotor device. The stator device defines a planar stator face and two or more stator channels in fluid communication with the stator face at corresponding stator ports, while the rotor device includes a substantially planar rotor face defining one or more rotor channels. A tribological coating is disposed atop at least one of the rotor and stator face. The valve assembly includes a polymer insert device defining an exposed contact face having an inner diameter less than that of the outer circumferential edge and an outer diameter more than the outer circumferential edge. The insert device is formed for press-fit insertion in a groove defined in the rotor face. The outer circumferential edge of the stator face contacts the insert exposed face during rotation between the two or more rotor positions. | 05-17-2012 |
| 20120024411 | Biocompatible Tubing for Liquid Chromatography Systems - A biocompatible tube that can be used in a liquid chromatography system is described. The tube can have flanged or straight ends, and can be used in conjunction with one or more fitting, assembly. | 02-02-2012 |
| 20120014848 | Connection Assembly for Ultra High Pressure Liquid Chromatography - A fitting assembly having a nut, a ferrule, and a ferrule tip that may be assembled by an operator. The fitting assembly includes a nut with first and second ends, with the second end adapted to receive the first end of a ferrule, and a ferrule tip with a first end having an externally tapered portion adapted to abut the second end of the ferrule and a second end adapted to be received in a component or fitting of a liquid chromatography system. The nut, ferrule and ferrule tip of the fitting assembly have passageways therethrough for receiving and removably holding tubing. | 01-19-2012 |
| 20110303304 | REBUILDABLE MICRO-FLUIDIC VALVE ASSEMBLY - A multi-position valve assembly including a valve housing, a stator element and a rotor element rotatably mounted about a rotational axis. The valve assembly further includes a pressure adjustment assembly movable between a release position and a stop position, hard stopped relative to the valve housing. The pressure adjustment assembly includes a pressure adjuster device configured to movably cooperate between the rotor element and the valve housing to adjustably generate an axial compression pressure at the rotor-stator interface at a calibrated operating pressure, P | 12-15-2011 |
| 20110203678 | MULTI-POSITION MICRO-FLUIDIC VALVE SYSTEM - A micro-fluidic valve system is provided which includes a micro-fluidic valve actuator apparatus, a fluid distribution manifold and a micro-fluidic POD apparatus. The POD apparatus includes a POD housing that defines an interior central passage extending from a distal mounting end of the housing to a proximal portion thereof. The POD apparatus further includes a stator device disposed in the interior central passage, and includes a distal stator face that cooperates with an opening in the distal mounting end to define a gasket receptacle. A relatively thin, elastomeric gasket member is disposed in the gasket receptacle of the housing in abutting contact between the stator and a communication face of the manifold. A fluid-tight seal is then formed between each respective stator communication port of the stator device and a corresponding manifold communication port of the manifold. | 08-25-2011 |
| 20110024657 | MULTI-POSITION MICRO-FLUIDIC VALVE SYSTEM WITH REMOVABLE ENCODER ASSEMBLY - A micro-fluidic valve actuator assembly is provided for controlling a multi-position micro-fluidic valve device for switching between a plurality of discrete fluid distribution positions. The actuator assembly includes a housing having an exterior wall and an interior wall defining an interior through-chamber. A drive assembly is rotatably positioned within the chamber, having a drive axis of rotation positioned substantially co-axial with the chamber axis. A removable, stand alone, self contained encoder assembly is positioned within the actuator housing. The encoder assembly includes an encoder shaft rotatably mounted to a support structure for rotation about an encoder shaft axis. The encoder assembly further includes an encoder wheel mounted to the encoder shaft for rotation about the encoder shaft axis, and an encoder module mounted to the support structure. The encoder module cooperates with the encoder wheel, as a preset unit, to determine the rotational position of the encoder shaft about the encoder shaft axis. When the encoder assembly is oriented in a mounting position, the encoder shaft can be rotatably coupled to the drive assembly, while the support structure is free of rigid coupling directly to the housing. | 02-03-2011 |
| 20110006237 | ROTARY SHEAR VALVE ASSEMBLY WITH HARD-ON-HARD SEAL SURFACES - A multi-position rotary shear valve assembly having a substantially metallic or ceramic stator device and a substantially metallic or ceramic rotor device. The stator device defines a substantially planar stator face and at least two or more stator channels in fluid communication with the stator face at corresponding stator ports, while the rotor device includes a substantially planar rotor face defining one or more rotor channels. A tribological coating is disposed atop at least one of the rotor face and the stator face, which enables a substantially fluid-tight, selective relative rotation between the rotor face and the stator face, at a rotor-stator interface, between two or more rotor positions. | 01-13-2011 |
| 20100224546 | Connection Assembly for Ultra High Pressure Liquid Chromatography - A fitting assembly having a single- or double-headed ferrule, a nut, and a fitting that may be assembled or dissembled by an operator. The fitting assembly includes a nut with first and second ends, with the second end adapted to receive or abut the first end of a ferrule, and further includes a fitting with a first end having an internally tapered portion adapted to receive the second end of the ferrule and a second end adapted to be removably connected to a component or fitting of a liquid chromatography system. The nut, ferrule and fitting of the fitting assembly have passageways therethrough for receiving and removably holding tubing. | 09-09-2010 |
| 20100111721 | DUAL PISTON PUMP ASSEMBLY WITH ANTI-ROTATION GUIDE RAILS - A dual piston-pump apparatus is provided having a pump chassis that includes a pair of spaced-apart, elongated piston bores, and a lead screw shaft. This shaft includes a motor driven end, and another portion thereof rotatably mounted to the chassis for rotation about a screw rotational axis. A piston drive member threadably cooperates with the lead screw shaft for selective reciprocating movement longitudinally along the screw rotational axis thereof between a first position and a second position. The drive member includes a pair of spaced-apart piston shafts, each piston shaft of which includes a respective piston head slideably received in a respective piston bore of the chassis. As the drive member is driven along the screw shaft between the first position and the second position, each piston head is simultaneously reciprocated between a dispensing condition and an aspiration condition. An anti-rotation device cooperates between the pump chassis and the drive member to substantially prevent rotational displacement of the drive member relative to the pump chassis and about the screw rotational axis during rotational motion of the screw shaft. | 05-06-2010 |
| 20090266751 | DOSING ENGINE AND CARTRIDGE APPARATUS FOR LIQUID DISPENSING AND METHOD - A liquid dispensing system is provided for automated dispensing of a plurality of liquid reagents into a recreational body of water. The liquid dispensing system includes a cartridge apparatus housing a plurality of liquid reagent containers, each containing a respective liquid reagent. A docking assembly is provided having a dock manifold device, and is releasably coupled to the cartridge apparatus between a first condition and a second condition. In a first condition, the cartridge apparatus can be removably coupled to the docking assembly, while in the second condition, the cartridge apparatus is lockably mounted to the docking assembly in a manner permitting fluid communication from the respective reagent container to respective fluid passages of the manifold device. The dispensing system further includes a dosing engine having a valve manifold device to selectively dispense the liquid reagents into the recreational body of water through a dispensing port. | 10-29-2009 |
