Patents by Inventor Daniel E. Schwarz
Daniel E. Schwarz 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: 11913349Abstract: A turbofan engine according to an example of the present disclosure includes, among other things, a fan, a compressor section, a turbine section including a fan drive turbine and a second turbine, an epicyclic gear system with a gear reduction, first and second bearings, and a fan drive shaft interconnecting the gear system and the fan. The fan drive turbine has a first exit area at a first exit point and is rotatable at a first speed. The second turbine has a second exit area at a second exit point and is rotatable at a second speed. A first performance quantity is defined as the product of the first speed squared and the first area. A second performance quantity is defined as the product of the second speed squared and the second area.Type: GrantFiled: February 1, 2023Date of Patent: February 27, 2024Assignee: RTX CORPORATIONInventors: Frederick M. Schwarz, Gabriel L. Suciu, William K. Ackermann, Daniel Bernard Kupratis, Michael E. McCune
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Patent number: 10676376Abstract: Methods of modification of zero-valent iron (ZVI) to improve its performance in removing contaminants from a discharge stream. In some aspects, the methods include contacting ZVI-impregnated disks with solutions containing metal cations such as Ni2+, Cu2+, Fe2+, or Pd2+. In some aspects, a wastewater stream is treated with a metal cation solution, then passed over ZVI. Compositions for treating wastewater include ZVI that is modified with a metal cation solution.Type: GrantFiled: September 13, 2017Date of Patent: June 9, 2020Assignee: ECOLAB USA INC.Inventors: Nicholas S. Ergang, Daniel E. Schwarz, Darlington Mlambo, Bruce A. Keiser, Hung Ting Chen
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Publication number: 20180086650Abstract: Methods of modification of zero-valent iron (ZVI) to improve its performance in removing contaminants from a discharge stream. In some aspects, the methods include contacting ZVI-impregnated disks with solutions containing metal cations such as Ni2+, Cu2+, Fe2+, or Pd2+. In some aspects, a wastewater stream is treated with a metal cation solution, then passed over ZVI. Compositions for treating wastewater include ZVI that is modified with a metal cation solution.Type: ApplicationFiled: September 13, 2017Publication date: March 29, 2018Applicant: ECOLAB USA INC.Inventors: Nicholas S. Ergang, Daniel E. Schwarz, Darlington Mlambo, Bruce A. Keiser, Hung Ting Chen
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Patent number: 9611589Abstract: Size press formulations and methods of treating a substrate using the size press formulations. The size press formulations may include solids. The solids may include a polyaluminum chloride compound, starch, an optical brightening agent, and a salt. Suitable polyaluminum chloride compounds include phosphated polyaluminum chloride, sulfated polyaluminum chloride, polyaluminum chloride, polyaluminum silica sulfate chloride, and any combination thereof.Type: GrantFiled: May 10, 2016Date of Patent: April 4, 2017Assignee: ECOLAB USA INC.Inventors: David J. Castro, William Andrews, Daniel E. Schwarz
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Publication number: 20160251804Abstract: Size press formulations and methods of treating a substrate using the size press formulations. The size press formulations may include solids. The solids may include a polyaluminum chloride compound, starch, an optical brightening agent, and a salt. Suitable polyaluminum chloride compounds include phosphated polyaluminum chloride, sulfated polyaluminum chloride, polyaluminum chloride, polyaluminum silica sulfate chloride, and any combination thereof.Type: ApplicationFiled: May 10, 2016Publication date: September 1, 2016Applicant: ECOLAB USA INC.Inventors: David J. Castro, William Andrews, Daniel E. Schwarz
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Patent number: 9365979Abstract: Size press formulations and methods of treating a substrate using the size press formulations. The size press formulations may include solids. The solids may include a polyaluminum chloride compound, starch, an optical brightening agent, and a salt. Suitable polyaluminum chloride compounds include phosphated polyaluminum chloride, sulfated polyaluminum chloride, polyaluminum chloride, polyaluminum silica sulfate chloride, and any combination thereof.Type: GrantFiled: August 27, 2014Date of Patent: June 14, 2016Assignee: ECOLAB USA INC.Inventors: David J. Castro, William Andrews, Daniel E. Schwarz
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Patent number: 9328003Abstract: The invention provides methods and compositions for separating metals from a liquid medium, the method uses a copolymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. The treated liquid is then passed through a filtration system. The scavenging effect of the combination of the treatment with the filtration is unexpectedly greater than the sum of its parts.Type: GrantFiled: November 11, 2013Date of Patent: May 3, 2016Assignee: Nalco CompanyInventors: Deepak A. Musale, Daniel E. Schwarz, Paul J. Zinn, Bruce A. Keiser, Jitendra T. Shah
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Publication number: 20160060812Abstract: Size press formulations and methods of treating a substrate using the size press formulations. The size press formulations may include solids. The solids may include a polyaluminum chloride compound, starch, an optical brightening agent, and a salt. Suitable polyaluminum chloride compounds include phosphated polyaluminum chloride, sulfated polyaluminum chloride, polyaluminum chloride, polyaluminum silica sulfate chloride, and any combination thereof.Type: ApplicationFiled: August 27, 2014Publication date: March 3, 2016Applicant: ECOLAB USA INC.Inventors: David J. Castro, William Andrews, Daniel E. Schwarz
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Publication number: 20150191374Abstract: Methods and compositions for removing a targeted constituent from water are disclosed. The water including the targeted constituent may be transported into a reactor and the reactor may include a magnet and zero valent iron particles. The targeted constituent can chemically react with the zero valent iron particles and the particles may then be attracted to the magnet. The water may then pass out of the reactor free of the targeted constituent. Additionally, the zero valent iron particles may be regenerated and reused.Type: ApplicationFiled: July 29, 2014Publication date: July 9, 2015Applicant: ECOLAB USA INC.Inventors: Daniel E. Schwarz, Adam A. Smith, Gordon M. Carter, Kevin P. O'Leary
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Patent number: 9032792Abstract: A device and method for reducing and/or preventing fouling of a sensor is disclosed. The method comprises operating ultrasound technology that is submerged or partially submerged into a liquid medium that is responsible for the fouling. The device comprises the ultrasound technology itself. The ultrasound technology may be operated intermittently at high intensity to advantageously provide cavitation of the liquid medium, while avoiding the disadvantages typical of continuously operating ultrasound technology at high intensity. Additionally, the method may be carried out by taking advantage of the piezoelectric property of quartz.Type: GrantFiled: January 19, 2012Date of Patent: May 19, 2015Assignee: Nalco CompanyInventors: Michael E. Bradley, Michael J. Murcia, Daniel E. Schwarz, Mita Chattoraj
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Publication number: 20140061130Abstract: The invention provides methods and compositions for separating metals from a liquid medium, the method uses a copolymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. The treated liquid is then passed through a filtration system. The scavenging effect of the combination of the treatment with the filtration is unexpectedly greater than the sum of its parts.Type: ApplicationFiled: November 11, 2013Publication date: March 6, 2014Applicant: Nalco CompanyInventors: Deepak A. Musale, Daniel E. Schwarz, Paul J. Zinn, Bruce A. Keiser, Jitendra T. Shah
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Publication number: 20130186188Abstract: A device and method for reducing and/or preventing fouling of a sensor is disclosed. The method comprises operating ultrasound technology that is submerged or partially submerged into a liquid medium that is responsible for the fouling. The device comprises the ultrasound technology itself. The ultrasound technology may be operated intermittently at high intensity to advantageously provide cavitation of the liquid medium, while avoiding the disadvantages typical of continuously operating ultrasound technology at high intensity. Additionally, the method may be carried out by taking advantage of the piezoelectric property of quartz.Type: ApplicationFiled: January 19, 2012Publication date: July 25, 2013Inventors: Michael E. Bradley, Michael J. Murcia, Daniel E. Schwarz, Mita Chattoraj
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Patent number: 8329140Abstract: A method and system for storing and evolving hydrogen (H2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.Type: GrantFiled: September 11, 2008Date of Patent: December 11, 2012Assignee: Los Alamos National Security, LLCInventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
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Patent number: 8282835Abstract: The invention provides a method of efficiently removing selenium from water. The method involves: adding an oxidant to the liquid, adjusting the liquid's pH to below 7.5, adding ferric salt in an amount such that less than a quarter of selenium in the liquid precipitates and adding a poly dithiocarbamate material to the liquid in an amount such that the amount of poly dithiocarbamate material (in ppm) is greater than the amount of ferric salt (in ppm). This method removes far more selenium than previous methods, and does it using a smaller amount of expensive chemicals. Moreover this method makes it far more likely to achieve cost effective compliance with the ever-increasing environmental standards for selenium in water.Type: GrantFiled: March 10, 2010Date of Patent: October 9, 2012Assignee: Nalco CompanyInventors: Daniel E. Schwarz, Jitendra T. Shah
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Patent number: 8101786Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: GrantFiled: October 28, 2010Date of Patent: January 24, 2012Assignee: Los Alamos National Security, LLCInventors: David L Thorn, William Tumas, Daniel E Schwarz, Anthony K Burrell
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Publication number: 20110220583Abstract: The invention provides a method of efficiently removing selenium from water. The method involves: adding an oxidant to the liquid, adjusting the liquid's pH to below 7.5, adding ferric salt in an amount such that less than a quarter of selenium in the liquid precipitates and adding a poly dithiocarbamate material to the liquid in an amount such that the amount of poly dithiocarbamate material (in ppm) is greater than the amount of ferric salt (in ppm). This method removes far more selenium than previous methods, and does it using a smaller amount of expensive chemicals. Moreover this method makes it far more likely to achieve cost effective compliance with the ever-increasing environmental standards for selenium in water.Type: ApplicationFiled: March 10, 2010Publication date: September 15, 2011Inventors: Daniel E. Schwarz, Jitendra T. Shah
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Publication number: 20110129411Abstract: A method and system for storing and evolving hydrogen (H2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.Type: ApplicationFiled: September 11, 2008Publication date: June 2, 2011Inventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
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Publication number: 20110105706Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: ApplicationFiled: October 28, 2010Publication date: May 5, 2011Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
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Patent number: 7837852Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: GrantFiled: July 31, 2009Date of Patent: November 23, 2010Assignee: Los Alamos National Security, LLCInventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
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Publication number: 20090297423Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: ApplicationFiled: July 31, 2009Publication date: December 3, 2009Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell