Fujifilm Electronic Materials U.s.a., Inc.

Other

Michael R Barker

Marcia Jo Cole-Yocom

Bryan Hinzie

Yuan Chen

Jack Helzer

Pejman Ahmadiannamini

Shen-Ping Huang

Perry Westberg

Marcia Cole-Yocom

A method for process a chemical liquid is provided. The method includes at least providing a system having at least one filtration medium, treatment the system with a treatment liquid having a content of iron (Fe) and calcium (Ca) of about 10 ppb or less, and processing a chemical liquid using an apparatus having the system configured therein after the treatment process.

Method for processing chemical liquid

A chemical liquid manufacturing apparatus, including a first system and a second system, is provided. The first system includes at least one first filtration medium, selected from a first filter, a first ion exchange membrane and a first ion adsorption membrane, wherein the first system is configured to process a material of at least one time. The second system includes at least one second filtration medium, selected from a second filter, a second ion exchange membrane and a second ion adsorption membrane, wherein the second system is configured for recirculation and to process the material of at least two times.

Chemical liquid manufacturing apparatus

Plant hanger

Side notch purge strap for welding

An improved method and apparatus for shielding inert gas from seeping out of metal pipes in a welding application wherein a high-temperature resistant purge strap is placed around the weld gap and the pipe ends. Advantageously, the purge strap is equipped with a window to allow the welder access to the pipe ends. Dams may be inserted into each pipe near the end to be welded, the purge strap placed about the pipes covering the end of each, and inert gas pumped into the pipes, displacing the air within the pipes. A weld bead is laid into the gap and the purge strap is shifted around the circumference of the pipes to allow completion of the weld. The purge strap device is also disclosed.

Purge strap for welding

Growing community of inventors

Concord, NC, United States of America

Michael R Barker