Perkinelmer Health Sciences, Inc.

Torion Technologies, Inc.

Anthony David Rands

Nathan L Porter

Edgar D Lee

Randall W Waite

Kenneth D Nemelka

Benjamin J Black

Joseph L Oliphant

Randal W Waite

Chad B Grant

A system and method for performing field-portable GC/MS measurements for the rapid sampling and measurement of high temperature boiling semi-volatile organic compounds in environmental samples, wherein other column bundles have cold spots that may prevent high temperature boiling semi-volatile components from eluting the GC column, this new design may eliminate those cold spots on the GC column.

Low thermal mass GC module

A system for preparing a test sample includes a vial holder, a needle trap connected to the vial holder, and a sample preparation station. The vial holder includes a vial chamber configured to hold a vial, a purge gas needle, and a needle trap heater. The needle trap includes a needle with the needle trap heater surrounding a distal end portion of the needle. A packing bed is disposed in the needle at the distal end portion. The sample preparation station includes a housing and a vial heater assembly including a vial heater and defining a cavity. The vial holder is configured to be received in the cavity in an installed position with the vial heater surrounding at least a portion of the vial.

Devices, systems, and methods for preparing field samples

Certain configurations of devices and systems which are configured to draw a selected volume of an air sample into a trap are described. In some examples, the devices and systems comprise a pump and a mass flow sensor to draw a selected volume of the air sample through a trap even where variable restriction occurs.

Sampling pumps and closed loop control of sampling pumps to load traps

A duckbill valve assembly includes a duckbill valve and a spring member. The duckbill valve has a longitudinal axis, a lateral axis transverse to the longitudinal axis, and opposed proximal and distal ends spaced apart along the longitudinal axis. The duckbill valve defines a valve direction extending from the proximal end to the distal end. The duckbill valve includes a first port at the proximal end, and first and second opposed sidewalls. The first and second sidewalls taper inwardly toward one another in the valve direction to form a duckbill structure. The duckbill structure includes a slit proximate the distal end. The duckbill valve is transitionable from a closed position, wherein the slit is closed, and an open position, wherein the first and second sidewalls are laterally separated proximate the slit to form a second port. The spring member includes a spring leg disposed laterally adjacent the first side wall. The spring leg exerts a spring load on the first sidewall, the spring load forcing the first and second sidewalls together to maintain the slit in the closed position. The duckbill valve assembly is configured such that, when the first and second sidewalls are displaced laterally outward to open the slit, the spring leg is displaced in the valve direction and in a laterally outward direction.

Duckbill valve assemblies and apparatus and methods including same

A system and method for improving operation of a needle trap by changing a flow path through a needle trap to enable a needle to draw a fluid sample into a working end of the needle and out through the side hole, wherein drawing the sample through the side hole eliminates the possibility of a leak through the side hole while drawing a fluid sample into the working end.

Growing community of inventors

Vineyard, UT, United States of America

Anthony David Rands