L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

American Air Liquide, Inc.

Air Liquide America, L.p.

Guillaume Rameau

Joseph E Paganessi

Gregory M Jursich

Mindi Xu

Naoyuki Nakamoto

Herve E Dulphy

Yukinobu Nishikawa

Lorrin Honda

Valère Laurent

Pascal Mengolli

Thierry Breville

Tay Sayasane

The invention relates to a system for delivering gas stored in a vessel in liquefied form, said vessel having in its lower part a liquefied phase of said gas and in the upper part a gaseous phase of said gas, which vessel includes a means for connecting to a means for utilization as well as a means for heating the lower part of said vessel. In accordance with the invention, the liquefied gas and/or the shell of the vessel are electrically conductive elements and the means for heating comprises an electromagnetic induction means capable of producing an alternating magnetic field in the shell and/or the liquid so as to heat the shell in its lower part and/or the liquid in the vessel, all while limiting the heating of the gas by said means.

System for heating tanks of liquefied gas by induction

Integral blocks, chemical delivery systems and methods for delivering an ultrapure chemical to a point of use or to another integral block are provided. More particularly, the integral blocks include a recharge container block, a pressurization gas block, a purge gas block, a waste recovery block, a vacuum block, a solvent supply block, a degas block, a control block, and a filtration block. Various integral blocks may be selected to form a chemical delivery system, which is particularly suited for a given application. A chemical delivery system will typically comprise a chemical container block, a chemical delivery block, and a point of use in line with the chemical container block and chemical delivery block, as well as one or more integral blocks. The invention also relates to a method for delivering an ultrapure chemical from a chemical container to a point of use, by connecting a chemical container block, containing an ultrapure chemical, to a chemical delivery block and introducing the ultrapure chemical to a point of use. The methods may also include the use of one or more integral blocks. The chemical delivery systems and methods of the invention may be used in a variety of applications. In particular, the invention may be used in electronics fabrication, optical fiber manufacture or semiconductor manufacture.

Integral blocks, chemical delivery systems and methods for delivering an ultrapure chemical

A method and an apparatus for measuring the amount of liquid in a container, and for causing the liquid to flow from the container to a point of use. The weight of the container is measured at several time intervals to determine the weight change of the liquid contained within. When the weight change is less than a predetermined fraction of either the weight of container weight and/or of the liquid originally contained in the container, a signal is generated to indicate that the container may be empty.

Apparatuses and methods for delivering liquid chemical products

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Grenoble, France

Guillaume Rameau