Air Products and Chemicals, Inc.

Versum Materials Us, LLC

John Eric Baker

Charles Michael Birtcher

David A Roberts

Thomas Andrew Steidl

Robert Sam Zorich

Lee Arthur Senecal

Geoffrey L Chase

A fully removable chime or valve guard that can support the container on its top, side and bottom is provided. The removable chime or valve guard provides protection if the container is dropped on its side or top. The protection provided allows the containers to pass a drop test per 49 CFR section 178.603, so the containers can be certified per 49 CFR 178.504.

Removable valve guard for ampoules

The present invention is a quartz bubbler container with cross purge capability. This cross purge allows the user to easily purge air and chemical from the valve inlet and outlet by simply flowing inert gas, and avoids the requirement for a more complicated vacuum purging apparatus. The design incorporates two small footprint 3-way valves mounted on the bubbler container inlet and outlet connectors. The 3port of each valve is piped together between the valves with a crosspurge line. The valves are corrosion resistant, leak free, maintenance free, non-leaching of impurities, and can accommodate an optional breakseal crusher that will perforate quartz break seals (on the inlet and outlet of ampoule). Liquid out containers of various materials of construction are also contemplated.

Cross purge valve and container assembly

A container for high purity chemicals having an externally placed level sensor to avoid contamination of such chemical and for ready serviceability and a removeable liquid out diptube to facilitate cleaning during refilling or refurbishing, both of which are situated adjacent a sump in the bottom of the container. The container can have a valved inlet and outlet and can be constructed of stainless steel which is electropolished.

High purity chemical container with external level sensor and liquid sump

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Temecula, CA, United States of America

John Eric Baker