IDEX Health & Science LLC Patent applications |
Patent application number | Title | Published |
20140373605 | Liquid Sampling Valve - A liquid sampling system includes a liquid sampling valve for transferring a liquid sample from a primary stream to a secondary stream. The liquid sampling valve includes a rotor having a movable shuttle that is in selective fluid communication with the primary stream or the secondary stream. The rotor shuttle passes through a discharge station prior to completion of the valve cycle to discharge contaminants prior to re-exposure to the primary stream. | 12-25-2014 |
20140260534 | Biocompatible Filter - An improved biocompatible filter for use in liquid chromatography systems such as HPLC or UHPLC The present disclosure addresses the problem of particles bypassing a filter in a liquid chromatography application by design features in the interface between the frit filter and ring that form an improved seal between the ring and frit and prevent leakage around the filter in high measure chromatography. Design features also include frit filters with an internal particle size gradient for pre-column separation activity during filtration. | 09-18-2014 |
20140137973 | CLOG RESISTANT FLUID PATHWAY - A clog resistant leak tight smooth transition fluid path directional turn in a fluid pathway that minimizes back pressure turbulence and fluid friction and is configured to be snakeable with a fish line or other wire product to clear or remove potential blockages due to particulate carried by fluid flowing in the fluid pathway is presented. In one example the transition fluid path is an insert having a predefined size and shape configured to be received in a complementary sized and shaped opening in the layer of a fluidic manifold. A leak tight communication passageway is defined by a groove following a smooth curved path located between a surface of the insert in facing relationship with a matching surface of the opening in the layer between the entry fluid path and the exit fluid path. | 05-22-2014 |
20140123819 | Torque Limiting Tool and Methods - A torque limiting tool is provided that has a handle and a body, which in certain embodiments may be assembled by an operator. The body of the torque limiting tool has a side portion with a tubing slot for allowing tubing to exit the torque limiting tool. The handle and body have one or more abutments, designed to allow the torque limiting tool to deliver a maximum amount of torque. The torque limiting tool may be used with an adapter to allow coupling with a variety of fitting sizes and shapes. The torque limiting tool may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems. | 05-08-2014 |
20140102568 | FLUIDIC INTERFACE VALVE ASSEMBLY WITH ELASTOMERIC FERRULE DEVICE - A tubing interface having an elongated tube, an elastomeric ferrule and a support ring device disposed around the ferrule. The ferrule includes a bore which is sized for receipt of the tube. The tubing interface further includes a cap member having an exterior surface, an opposed interior surface, and a tube receiving passage extending therethrough. The receiving passage is formed and dimensioned for axial sliding receipt of the tube member therethrough. The cap member further includes a cup-shaped receiving recess extending proximally from the interior surface, and is formed and dimensioned for axial receipt of the proximal end of the ferrule body member and the support ring. When the cap member is mounted to a valve apparatus, the support ring and the elastomeric ferrule device compressively cooperate with the cup-shaped recess to form a fluid-tight seal between the tube port and a communication port of the valve apparatus. | 04-17-2014 |
20140090250 | 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 | 04-03-2014 |
20140026647 | 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. | 01-30-2014 |
20130234432 | Microfluidic Interconnect - A microfluidic interconnect system and method for assembly thereof is described. The microfluidic interconnect has a port and a seal, with the port having a reverse taper. The port has a first port end, a second port end, and an inner port surface with a tapered portion. Each port end has an opening with a diameter, and in certain embodiments, the diameter of the first port end is smaller than the diameter of the second port end. The seal has a first end and a second end, and each seal end has a rim and an opening with an inner diameter and an outer diameter. The seal also has an inner surface and an outer surface, where in certain embodiments, each surface has a tapered portion. In certain embodiments, the inner diameter of the first seal end is equal to or larger than the inner diameter of the second seal end, the outer diameter of the first seal end is equal to or smaller than the outer diameter of the second seal end, and the outer diameter of the second seal end is larger than the outer diameter of each port end. In certain embodiments, a tube is slidably coupled to the inner surface of the seal, and the tube has an outer diameter that is equal to or larger than the inner diameter of the second seal end. | 09-12-2013 |
20130233053 | Torque Limited Fitting - A torque limited fitting is provided having a head and a body, which in certain embodiments may be assembled by an operator. The body of the torque limited fitting has a passageway therethrough for receiving and removably holding tubing. The torque limited fitting may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems. | 09-12-2013 |
20130227831 | Flat Bottom Fitting Assembly - A fitting assembly is provided having a nut and a ferrule, which in certain embodiments may be assembled by an operator. The nut and ferrule of the fitting assembly have passageways therethrough for receiving and removably holding tubing. The nut and ferrule fitting assembly may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems. | 09-05-2013 |
20120223522 | High Pressure Fitting with Self-Releasing Ferrule - A fitting assembly is provided having a nut and a self-releasing ferrule, which in certain embodiments may be assembled by an operator. The fitting assembly includes a nut with a first end, and a second end that defines a slot, and a ferrule with a first end that defines one or more slots, and a second end, with the second end of the nut adapted to receive the first end of the ferrule, the second end of the ferrule adapted to be received in a component or fitting of a liquid chromatography system. The nut and ferrule of the fitting assembly have passageways therethrough for receiving and removably holding tubing. | 09-06-2012 |
20120223520 | High Pressure Fitting With Self-Releasing Ferrule - A fitting assembly is provided having a nut and a self-releasing ferrule, which in certain embodiments may be assembled by an operator. The nut and ferrule of the fitting assembly have passageways therethrough for receiving and removably holding tubing. | 09-06-2012 |
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 |