Waters Technologies Corporation

Other

Maxtor Corporation

Paul B Keenan

Joshua A Shreve

Sylvain Gilles Cormier

Steven D Trudeau

Daniel J McCormick

Steven J Ciavarini

Jonathan L Belanger

Joseph A Luongo

Kurt D Joudrey

Ryan M Hill

Greg Kheyfets

Michael L Mallary

James Usowicz

John S Berg

John R Howard

Joshua A Burnett

Marc E Lemelin

Paul E Linderson

Charles T Murphy

Bernhard Hiller

Kenneth R Plant

David A Simpson

Larry Ernest Wittig

Senthil Bala

David A Vogel

John Maillet

Peter Osswald

Christopher Hume Reynolds

Roy J MacKinnon

Richard S Threlfall

Brett G Cook

Michael J Cook

William Dale Robertson

Jae Hong Park

Matthew Richard Gill

Thomas Andrew Lutzow

Sukhdev Bangar

Eugene Berthiaume

Jibing Lin

Chromatography system

A liquid chromatography sample organizer includes a first chamber, a plurality of stacked sample organizer shelves mounted within the first chamber each individually configured to store a sample-vial carrier including a sample, and a shelf magnet affixed to a surface of each of the plurality of stacked sample organizer shelves. A portion of the first chamber is configured to be located adjacent to, and open to, a sample manager configured to inject liquid chromatography samples into a chromatographic flow stream. Disclosed further is a liquid chromatography system having the sample organizer, a sample drawer, and a method of transferring samples between a sample manager and the sample organizer.

Sample organizer, tray, system and method

Exemplary embodiments of the present disclosure are directed to manipulating pressure-related hysteresis in a pressurized flow system by setting the pressure of the system to a predetermined location in the hysteresis band to advantageously minimize an effect of the pressure related hysteresis on the pressure of the system or to advantageously benefit from the effects of the hysteresis on the pressure of the system.

Pressure related hysteresis manipulation in a pressurized flow system

A heater assembly used in chromatography includes a thermally conductive base having a chamber extending fully through the base with an opening at a first side of the base and at a second side of the base, and a cavity with an opening at the second side of the base. A heater is disposed within the cavity in thermal communication with the base. A thermistor assembly, having a thermistor within a thermally conductive body is disposed within the chamber. The body has a head region with a planar surface. The planar surface of the head region is exposed at the opening of the chamber at the first side of the base for making thermally conductive contact therewith. The thermistor assembly is thermally isolated from the base.

Solvent preheating system for liquid chromatography

Described is a mobile phase fitting having reduced corrosion and erosion. The fitting includes a coupling body, compression screw, compression member and gasket. The coupling body has a threaded bore at one end, a tapered cavity, a narrow bore and a fluid channel. The compression screw has an axial bore to receive a tube and a threaded outer surface in engagement with the threaded bore of the coupling body. The compression member is disposed in the tapered cavity and has an axial opening to pass the tube and a tapered surface to engage a surface of the tapered cavity. The gasket is disposed in the narrow bore and has one surface in contact with the first internal surface and has a parallel surface to receive an end face of the tube. Mobile phase flows along a path that includes the tube, an opening in the gasket and the fluid channel.

High pressure fitting for supercritical fluid chromatography

A fluidic block has a thermally conductive body with a first end and a second end opposite the first end. The body has a cutout portion formed therein between the first and second ends. The cutout portion partitions the body into a first region, a second region, and a thin region between the first and second regions. The cutout portion produces a thermal break between the first and second regions. The thermal break operates to guide a heat flow between the first and second regions through the thin region. A thermally conductive chromatography tube extends through the first, second, and thin regions from the first end to the second end of the body. The tube is in thermal communication with the body. A section of the tube may run in a transverse direction across the body in the thin region of the body.

Thermal isolation in a fluidic block of an actively controlling thermistor

A ponytail holder comprises a generally elongated, generally cylindrical member having first and second ends of a first diameter and a central section of lesser diameter, defining a relief for receiving an elastic band for securing a bundle of hair to said ponytail holder.

Ponytail holder

Described is a coupling seal that includes a polymeric body having a bore extending from a first end to an internal sealing surface and a fluid channel extending from the internal sealing surface to a second end. The bore is configured to receive a tube having a fluid channel so that an endface of the tube engages the internal sealing surface. The second end of the polymeric body is configured to contact a sealing surface of a coupling body that has a fluid channel extending from the sealing surface. A fluidic seal occurs when the coupling seal is compressed between the endface and the sealing surface. A void between an outer surface of the polymeric body and an inner surface of the coupling body receives the deformation of the coupling seal while under compression to thereby prevent the fluid channel of the tube from being crushed or obstructed.

Fluidic coupling seal

An apparatus for use in a liquid chromatography system includes a chromatography port and a tubing assembly having a chromatography tube coupled at one end to the chromatography port. The end of the tube has an end face covered with a corrosion-resistant material, for example, gold. The corrosion-resistant nature of the material protects the end of the tube from corrosion or erosion, which improves the quality and reliability of a seal between the end face of the tube and a sealing surface of the port. Alternatively, or in addition to covering the end face of the tube with the corrosion-resistant material, a gasket covered with or made of the corrosion-resistant material can be disposed between the end face of the tube and the port. This gasket extends the reach of the tube to facilitate bottoming out the tube within the port.

Corrosion protection in tubing used chromatography

The invention generally provides a static back pressure regulator. In exemplary embodiments, the static back pressure regulator includes a seat that defines part of a fluid pathway, a poppet, a spring arranged to bias the poppet toward the seat to restrict fluid flow through the fluid pathway, and a calibration element configured to adjust a force applied to the poppet by the spring. The calibration element can include a through hole that forms part of the fluid pathway. The poppet can include a first guiding portion that extends into the through hole of the calibration element and inhibits tipping of the poppet relative to the seat.

Static back pressure regulator

Exemplary embodiments of the present disclosure are directed to limiting a rate or pressurization in a reconfigurable pressurized flow system for which different system configurations can have different system volumes. In exemplary embodiments, the system can determine a limit for the rate of pressurization by configuring the system for a closed system rate of pressurization, measuring the closed system rate of pressurization at a set flow rate, and determining a relationship between the closed system rate of pressurization and the flow rate. The system can use the relationship to dynamically set the limit for different flow rates in the system.

Limiting a rate of pressurization in a pressurized flow system having a configurable system volume

Exemplary embodiments are directed to modular solenoid valve kits and associated methods, generally involving a valve body that includes a plurality of actuator section components and a plurality of head section components. The plurality of actuator section components includes a drive solenoid, a solenoid return spring, a stroke calibration collar and an actuator-to-head calibration collar. The plurality of head section components includes a needle, a stem return spring, a seal and a seat. The plurality of actuator section components and head section components are adapted to be interchanged to create a pull-through normally open valve, a pull-through normally closed valve, a push-in normally open valve and a push-in normally closed valve. That is, the kits and methods allow for modification of one valve type (e.g., a pull-through normally open valve, a pull-through normally closed valve, a push-in normally open valve and a push-in normally closed valve) into a different type.

Modular solenoid valve kits and associated methods

Remote-activation locks designed to permit unlocking and/or locking of the lock without physical manipulation of the lock are articulated to a product/good in a manner so as to deny one or more benefits associated with the product/good.

Remote-activation lock system and method

Growing community of inventors

Ottsville, PA, United States of America

Paul B Keenan