Patents by Inventor Reh-Lin Chen
Reh-Lin Chen 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: 10533564Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: GrantFiled: April 11, 2019Date of Patent: January 14, 2020Assignee: PRAXAIR TECHNOLOGY, INC.Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Patent number: 10533565Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: GrantFiled: April 11, 2019Date of Patent: January 14, 2020Assignee: PRAXAIR TECHNOLOGY, INC.Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Patent number: 10520187Abstract: In a burner in which fuel and gaseous oxidant are fed into the burner and combusted to produce a flame that extends out of an end of the burner, the noise produced by the burner is lessened by incorporating into the burner a baffle composed of a metal plate having a certain distribution of holes through the plate and a layer of metal filaments, and optionally a second metal plate.Type: GrantFiled: June 22, 2018Date of Patent: December 31, 2019Assignee: Praxair Technology, Inc.Inventors: Poravee Orawannukul, Reh-Lin Chen, Bradley D Damstedt
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Patent number: 10519962Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: GrantFiled: April 11, 2019Date of Patent: December 31, 2019Assignee: PRAXAIR TECHNOLOGY, INC.Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Patent number: 10443603Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: GrantFiled: October 15, 2015Date of Patent: October 15, 2019Assignee: PRAXAIR TECHNOLOGY, INC.Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Patent number: 10385861Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: GrantFiled: October 15, 2015Date of Patent: August 20, 2019Assignee: PRAXAIR TECHNOLOGY, INC.Inventors: Nick J. Degenstein, Lee J. Rosen, Ahmed F. Abdelwahab, Carl L. Schwarz, Reh-Lin Chen, Henry E. Howard
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Publication number: 20190234413Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Publication number: 20190234414Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Publication number: 20190234415Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Publication number: 20190011125Abstract: In a burner in which fuel and gaseous oxidant are fed into the burner and combusted to produce a flame that extends out of an end of the burner, the noise produced by the burner is lessened by incorporating into the burner a baffle composed of a metal plate having a certain distribution of holes through the plate and a layer of metal filaments, and optionally a second metal plate.Type: ApplicationFiled: June 22, 2018Publication date: January 10, 2019Inventors: Poravee Orawannukul, Reh-Lin Chen, Bradley D. Damstedt
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Publication number: 20160053764Abstract: A method for controlling the compression of an incoming feed air stream to a cryogenic air separation plant using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: October 30, 2015Publication date: February 25, 2016Inventors: Ahmed F. Abdelwahab, Nick J. Degenstein, Carl L. Schwarz, Reh-Lin Chen
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Publication number: 20160032934Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Inventors: Carl L. Schwarz, Lee J. Rosen, Nick J. Degenstein, Henry E. Howard, Reh-Lin Chen, Ahmed F. Abdelwahab
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Publication number: 20160033196Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Inventors: Henry E. Howard, Carl L. Schwarz, Ahmed F. Abdelwahab, Lee J. Rosen, Nick J. Degenstein, Reh-Lin Chen
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Publication number: 20160033197Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Inventors: Nick J. Degenstein, Lee J. Rosen, Ahmed F. Abdelwahab, Carl L. Schwarz, Reh-Lin Chen, Henry E. Howard
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Patent number: 8076820Abstract: An electro-osmotic pump includes a pump chamber having a wall fabricated of an electric double layer material, the surface area of the electric double layer material being high relative to the volume of the chamber. An electric potential applied across the material causes a fluid in the chamber to be transported through the wall. A nastic actuator includes the electro-osmotic pump and an actuator chamber, having a variable volume, coupled to the pump chamber. A superabsorbent polymer is disposed in the pump and actuator chambers, such that transport of the fluid into the pump chamber results in absorption of the fluid by the superabsorbent polymer, causing the actuator chamber to increase in volume. When the electric potential is applied across the superabsorbent polymer, the superabsorbent polymer expands, further causing the actuator chamber to increase in volume.Type: GrantFiled: October 5, 2007Date of Patent: December 13, 2011Assignee: Teledyne Licensing, LLCInventors: Reh-Lin Chen, Bing-Chung Chen, Chung-Lung Chen, Chuan-Hua Chen
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Publication number: 20080210559Abstract: An electro-osmotic pump includes a pump chamber having a wall fabricated of an electric double layer material, the surface area of the electric double layer material being high relative to the volume of the chamber. An electric potential applied across the material causes a fluid in the chamber to be transported through the wall. A nastic actuator includes the electro-osmotic pump and an actuator chamber, having a variable volume, coupled to the pump chamber. A superabsorbent polymer is disposed in the pump and actuator chambers, such that transport of the fluid into the pump chamber results in absorption of the fluid by the superabsorbent polymer, causing the actuator chamber to increase in volume. When the electric potential is applied across the superabsorbent polymer, the superabsorbent polymer expands, further causing the actuator chamber to increase in volume.Type: ApplicationFiled: October 5, 2007Publication date: September 4, 2008Inventors: Reh-Lin Chen, Bing-Chung Chen, Chung-Lung Chen, Chuan-Hua Chen