Air Products and Chemicals, Inc.

Hans-Juergen Graf

Robert E Fletcher

Peter T Randtke

Bruce A Lipisko

Richard E Howard

John C Schumacher

Peter T Randke

Adrian Sandu

J R Monkowski

Bruce E Rhine

A container for high purity chemicals has a quartz or glass breakseal tube, the end of the tube interior of the container forming a thin annular edge, and a glass or quartz disk fused to said thin annular edge closing the tube. The glass or quartz tube is constructed and adapted to receive, in use, an inner tube disposed in the glass or quartz tube; the disk, glass or quartz tube being of such construction that, in use, the disk is broken off the thin annular edge upon application of force thereto by the inner tube.

Ultra high purity reagent container with large breakseal

A system for automatically filling a bubbler, or other vapor delivery system from a reservoir, is disclosed in which the conduit system is purged and pressurized with inert gas, using a unique refill reservoir, level sensing and valving system.

Chemical refill system

A bubbler container for containing and transporting ultra-pure corrosive and poisonous liquid reagents which must be protected from exposure to air and from transmission of gas or vapor through containment walls, means for using the same in connection with unique valving and multiple layer seals for conduits is disclosed.

Method and apparatus for packaging, shipping and using poisonous liquids

A vacuum vapor transport control system and method for controlling the rate of vapor flow from a reagent reservoir into a vacuum system through an orifice calibrated as to size or flow rate using a high purity fixed gas and vapor provided from multiple reservoirs or mixed vapor provided from a single reservoir.

Vacuum vapor transport control

A chemical vessel having improved access means comprising an access tube forming an openable conduit, being closed at the internal end with a discoid breakseal during shipment, a chemical removal tube slidably mounted in gas tight relationship inside the access tube, and means for moving the removal tube into engagement with and breaking out the breakseal for permitting removal of chemical from the vessel is disclosed.

Growing community of inventors

Oceanside, CA, United States of America

Hans-Juergen Graf