Patents by Inventor Richard J. Udischas
Richard J. Udischas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8573441Abstract: The present invention provides for an integrated valve regulator assembly that comprises an integral body having a base portion that includes an axis for mounting on and coaxially with the neck portion of a pressurized source vessel and an assembly outlet, a defined internal passage in the integral body that extends through and between the base portion of the integral body and the assembly outlet, a sub-atmospheric pressure regulator assembled within the integral body of the integrated valve regulator assembly, an isolation valve positioned within the defined internal passage of the integral body and located downstream from and in communication with the sub-atmospheric pressure regulator, and a filling port disposed between the axis for mounting on and coaxially with the neck portion of the pressurized source vessel and the sub-atmospheric pressure regulator.Type: GrantFiled: October 30, 2012Date of Patent: November 5, 2013Assignees: American Air Liquide, Inc., L'Air Liquide, Sociétés Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Richard J. Udischas, Denis Muller, Werner Schleser
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Patent number: 8361199Abstract: Methods of purifying H2Se by removing H2S and/or H2O are disclosed. The amount of H2S in the H2Se-containing gas is reduced below 10 ppmv by passing the H2Se-containing gas through an AW-500 molecular sieve. H2S and H2O are removed by passing H2Se through a 4 A molecular sieve and subsequently passing H2Se through an AW-500 molecular sieve.Type: GrantFiled: May 27, 2011Date of Patent: January 29, 2013Assignees: Air Liquide Electronics U.S. LP, American Air Liquide, Inc.Inventors: Nathan Stafford, Richard J. Udischas
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Publication number: 20120318140Abstract: Disclosed are methods of purifying H2Se by removing H2S and H2O.Type: ApplicationFiled: May 27, 2011Publication date: December 20, 2012Applicant: American Air Liquide, Inc.Inventors: Nathan STAFFORD, Richard J. UDISCHAS
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Patent number: 8322569Abstract: The present invention provides for an integrated valve regulator assembly that comprises an integral body having a base portion that includes an axis for mounting on and coaxially with the neck portion of a pressurized source vessel and an assembly outlet, a defined internal passage in the integral body that extends through and between the base portion of the integral body and the assembly outlet, a sub-atmospheric pressure regulator assembled within the integral body of the integrated valve regulator assembly, an isolation valve positioned within the defined internal passage of the integral body and located downstream from and in communication with the sub-atmospheric pressure regulator, and a filling port disposed between the axis for mounting on and coaxially with the neck portion of the pressurized source vessel and the sub-atmospheric pressure regulator.Type: GrantFiled: December 4, 2008Date of Patent: December 4, 2012Assignees: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide, Inc.Inventors: Richard J. Udischas, Denis Muller, Werner Schleser
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Publication number: 20100228399Abstract: A pressure regulator assembly includes an integrated body. The integrated body has an inlet for connecting to a gas cylinder, a bore extending from the inlet to a pressure regulator, a passage extending from the pressure regulator to an outlet, and a fill port in communication with the bore. The pressure regulator assembly includes the pressure regulator operable to reduce pressure of a fluid flowing therethrough between the bore and the passage to a sub-atmospheric pressure; and an isolation valve operable between an open position and a closed position. The isolation valve is operable to seal the passage from the outlet in the closed position and to provide fluid communication between the outlet and the passage in the open position.Type: ApplicationFiled: April 19, 2010Publication date: September 9, 2010Inventors: Richard J. UDISCHAS, Denis Müller, Werner SCHLESER
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Publication number: 20090145494Abstract: The present invention provides for an integrated valve regulator assembly that comprises an integral body having a base portion that includes an axis for mounting on and coaxially with the neck portion of a pressurized source vessel and an assembly outlet, a defined internal passage in the integral body that extends through and between the base portion of the integral body and the assembly outlet, a sub-atmospheric pressure regulator assembled within the integral body of the integrated valve regulator assembly, an isolation valve positioned within the defined internal passage of the integral body and located downstream from and in communication with the sub-atmospheric pressure regulator, and a filling port disposed between the axis for mounting on and coaxially with the neck portion of the pressurized source vessel and the sub-atmospheric pressure regulator.Type: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Applicants: American Air Liquide, Inc., L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGEInventors: Richard J. Udischas, Denis Muller, Werner Schleser
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Publication number: 20080242912Abstract: Methods and apparatus for the purification and distribution of acetylene. Acetylene is removed from an acetylene storage device, and provided to a purifier where solvent is removed. The purified acetylene is then provided to a semiconductor processing tool.Type: ApplicationFiled: November 19, 2007Publication date: October 2, 2008Inventors: Olivier Letessier, Richard J. Udischas, James J.F. McAndrew, Regis Zils, Fabrice Delcorso, Rajat Agrawal
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Publication number: 20070204631Abstract: Disclosed herein is an apparatus for providing a chemical gas comprising a fabrication plant, a first vessel having a volume and proximate to the fabrication plant, the first vessel adapted to receive a liquefied chemical gas and to communicate a vaporized chemical gas to the fabrication plant, a source container located at a distance from the fabrication plant, the source container having a volume and adapted to communicate a liquefied chemical gas to the first vessel, and wherein the source container volume is substantially larger than the first vessel volume. Other embodiments and methods are described herein.Type: ApplicationFiled: August 3, 2006Publication date: September 6, 2007Applicant: American Air Liquide, Inc.Inventors: Richard J. Udischas, Hwa-Chi Wang
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Publication number: 20070163273Abstract: Disclosed herein is an apparatus for supplying a liquefied chemical gas comprising a vaporizer disposed within a fabrication plant, the vaporizer adapted to receive the liquefied chemical gas and output a vaporized chemical gas, a purge vessel connected to and in fluid communication with the vaporizer, and wherein the vaporizer is adapted to purge a volume of the liquefied chemical gas and the purge vessel is adapted to receive the volume of liquefied chemical gas. Other embodiments and methods are described herein.Type: ApplicationFiled: August 3, 2006Publication date: July 19, 2007Applicant: American Air Liquide, Inc.Inventors: Richard J. Udischas, Hwa-Chi Wang
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Patent number: 6363728Abstract: Provided is a novel system and method for delivery of gas from a liquefied state. The system includes (a) a delivery vessel holding a bulk quantity of liquefied gas therein; (b) a heat exchanger disposed on the delivery vessel to provide or remove energy from the liquefied gas only; and (c) a pressure controller for monitoring and adjusting the energy delivered to the vessel. The system and method allow for controlled delivery of liquefied gas from a delivery vessel at a predetermined flow rate. Particular applicability is found in the delivery of gases to semiconductor process tools.Type: GrantFiled: June 20, 2000Date of Patent: April 2, 2002Assignees: American Air Liquide Inc., Air Liquide America Corporation, L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Richard J. Udischas, Benjamin J. Jurcik, Hwa-Chi Wang, Robert G. Irwin
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Patent number: 6199384Abstract: Provided is a novel system for delivery of a gas from a liquefied state. The system includes: (a) a cabinet having a first and second panel disposed therein; (b) at least one compressed liquefied gas cylinder corresponding to each panel disposed in the cabinet; (c) temperature and/or pressure sensors disposed on each the cylinder; and (d) a controller for monitoring and adjusting the energy input into each of the cylinders based on the temperature and/or pressure in each of the cylinders sensed by the temperature and/or pressure sensors.Type: GrantFiled: July 9, 1999Date of Patent: March 13, 2001Assignees: American Air Liquide Inc., Air Liquide America CorporationInventors: Richard J. Udischas, Hwa-Chi Wang, Robert Irwin
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Patent number: 5992216Abstract: A system and a method for analyzing impurities in compressed gas, a method for controlling the particle growth in the monitored gas and a method for determining the optimum monitoring temperature for an individual gas are disclosed.Type: GrantFiled: May 29, 1997Date of Patent: November 30, 1999Assignee: American Air Liquide Inc.Inventors: Hwa-chi Wang, Richard J. Udischas
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Patent number: 5814741Abstract: Provided is a portable system useful for sampling both particulate and vapor phase metallic impurities from gases that cannot by hydrolyzed. The system comprises a valve for introducing and controlling the exhaust of the gas to be sampled from the system. The metallic impurities are entrapped on a filter, with one filter being operated at ambient temperature to remove particulate metallic impurities, and with another filter being operated at a temperature below ambient in order to remove vapor phase metallic impurities. In operating the system, the system is first back-filled to create a pressure equilibrium across the valve which introduces the gas to the first filter. The flow of gas through the entire sampling system is controlled by means of a critical orifice located between the filter and the valve for controlling exhaust of the gas from the system.Type: GrantFiled: September 9, 1996Date of Patent: September 29, 1998Assignee: American Air Liquide Inc.Inventors: Hwa-Chi Wang, Richard J. Udischas
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Patent number: 5665902Abstract: A system and a method for analyzing impurities in compressed gas, a method for controlling the particle growth in the monitored gas and a method for determining the optimum monitoring temperature for an individual gas are disclosed. The system includes a source of compressed gas, a sensor for measuring particle impurity within the gas, a temperature controller for controlling the temperature of the gas prior to said gas entering the sensor, with the temperature being controlled to eliminate particle formation from molecular clustering and condensation, and a pressure balancer.Type: GrantFiled: May 10, 1994Date of Patent: September 9, 1997Assignee: American Air Liquide, Inc.Inventors: Hwa-chi Wang, Richard J. Udischas
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Patent number: 5618996Abstract: Provided is a portable system useful for sampling both particulate and vapor phase metallic impurities from gases that cannot by hydrolyzed. The system comprises valves for introducing and controlling the exhaust of the gas to be sampled from the system. The metallic impurities are entrapped on filters, with one filter being operated at ambient temperature to remove particulate metallic impurities, and with another filter being operated at a temperature below ambient in order to remove vapor phase metallic impurities. In operating the system, the system is first back-filled to create a pressure equilibrium across the valve which introduces the gas to the first filter means. The flow of gas through the entire sampling system is controlled by means of a critical orifice located between the filters and the valve for controlling exhaust of the gas from the system.Type: GrantFiled: March 1, 1996Date of Patent: April 8, 1997Assignee: American Air Liquide Inc.Inventors: Hwa-Chi Wang, Richard J. Udischas
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Patent number: 5398712Abstract: A device and a method for its use for the removal of contaminants from a gas cylinder valve assembly. The valve assembly output is fed to the device which in turn has inlet and outlet connections to receive and to pass purge gas therethrough. The device is sized and positioned so that contaminants can be purged and a vacuum drawn from the gas cylinder valve assembly at the assembly location itself thus increasing the efficiency of contaminant removal.Type: GrantFiled: May 27, 1993Date of Patent: March 21, 1995Assignee: American Air LiquideInventors: Hwa-Chi Wang, Richard J. Udischas, Benjamin Jurcik
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Patent number: 5209102Abstract: A system for analyzing particles from compressed gas. The system employs a back-filling technique to slowly balance the pressures on both sides of a control valve before operation. Use of a critical orifice as a flow control device for compressed gases of varying pressure is employed to provide a constant volumetric flow rate and thus a constant residence time within an impurity sensor.Type: GrantFiled: January 31, 1992Date of Patent: May 11, 1993Assignee: American Air LiquideInventors: Hwa-Chi Wang, Richard J. Udischas