Parker-Hannifin Corporation

Whatman Gmbh

George Zugravu

John J Ronan

Karen Girard

A gas purifier assembly for providing first () and second () purified gas streams having an integral heater (). The assembly can have two separate chambers for gaseous fluid flow for the purpose of purifying a gas stream of hydrogen (), for example, and a separate distinct stream of gas such as compressed air (). A centrally located heater heats the first chamber to effect purification of the first gas. Waste heat from the first chamber is transferred to the second chamber via conduction to effect purification of the second gas stream.

Integral hydrogen and air purifier

The invention relates to an ultra-high purity gas generator system, such as a hydrogen gas generator system and method, which employs a direct current source to supply proportional electrical current to a cathode in an electrolyte cell. The system comprises a metal cathode gas generator for hydrogen gas and a DC current for the metal cathode, wherein the output DC line current is continuously modified by a control circuit, which modifies the pulse width into the DC source, based on the variation in hydrogen gas pressure or flow from the cell. In the system and method, direct current is supplied to the palladium or palladium alloy cathode of an electrolytic cell, and the direct current is controlled or switched by monitoring the gas flow or pressure in the cell by a pressure or flow transducer, providing the output voltage to a control circuit. The control circuit modulates the width of the pulses of a high frequency inverter and its modified and filtered output is supplied to the cell as a proportional, continuous straight line current source.

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Methuen, MA, United States of America

George Zugravu