US 7,743,641 B2Granted

Compact field-mountable gas chromatograph with a display screen

AssigneeABB AB

InventorsMax A. Bailey, Vince B. Hadley, Jonathan W. Asher, Rodney Wayne Dilbeck, Anthony P. Walker, Steven Gene Lakey, Stephen P. Paetz, Brent E. Berry, Robert W. Rutledge

Life of this patent

Estimating the term…

patentgrep

Loading patent…

Abstract

The present invention is directed to a gas chromatograph having a display screen. The gas chromatograph includes an explosion-proof housing and a transparent panel secured to the housing. The display screen is disposed in the housing and is visible through the transparent panel. A gas chromatograph (GC) assembly is disposed in the housing and includes a column for separating components of the gas and a detector for detecting the components of the gas. An electronics assembly is disposed in the housing and includes a microprocessor and memory. A graphical user interface (GUI) software application is stored in the memory and is executable by the microprocessor to display a plurality of windows on the display screen. The windows contain information about the operation of the gas chromatograph.

Claims19

Dependent claims

A gas chromatograph for analyzing gas, the gas chromatograph comprising:

(a.) an explosion-proof housing defining a single enclosed volume, the housing being elongated and having a longitudinal axis extending through opposing first and second ends of the housing;
(b.) a display screen disposed in the single enclosed volume of the housing and visible from the exterior of the housing;
(c.) a gas chromatograph (GC) assembly disposed in the single enclosed volume of the housing, the GC assembly comprising:
a separation device operable to separate components of the gas;
a detector for detecting the components of the gas;
and
a sample injection valve operable to inject the gas into the separation device;
and
(d.) a sample selection valve operable to control flow of the gas to the sample injection valve, the sample selection valve being disposed in the single enclosed volume of the housing;
(e.) a transparent panel fastened to the housing at the first end, the display screen being visible through the transparent panel;
wherein the housing comprises a body having an access opening formed therein and a cover removably disposed over the access opening, the cover forming the first end of the housing and the transparent panel being fastened to the cover;
and
wherein the GC assembly may be removed as a single unit from the housing through the access opening when the cover is removed from the body.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/515,079Filed 1 Sep 2006 · us provisional application
Priority: 2 Sep 2005
Published: US 2007/0089484 A126 Apr 2007
Granted: 29 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G01N 30/88
Column chromatography: integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
G01N 2030/0095
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g.…:…
G01N 2030/025
Characterised by the kind of separation mechanism: gas chromatography
G01N 2030/8804
Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86: automated systems

Family

Application60/713,986Us provisional application · filed 2 Sep 2005
US 2007/0089484 A1Pre-grant publication · published 26 Apr 2007
US 7,743,641 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key