Patents by Inventor Christopher Fred
Christopher Fred 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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Publication number: 20170117110Abstract: A switching system includes a MEMS switching circuit having a MEMS switch and a driver circuit, and an auxiliary circuit coupled in parallel with the MEMS switching circuit that comprises solid state switching circuitry. A control circuit in communication with the MEMS switching circuit and the auxiliary circuit performs selective switching of a load current towards the MEMS switching circuitry and the auxiliary circuit, with the control circuit programmed to transmit a control signal to the driver circuit to cause the MEMS switch to actuate to an open or closed position across a switching interval, activate the auxiliary circuit during the switching interval when the MEMS switch is switching between the open and closed positions, and deactivate the auxiliary circuit upon reaching the open or closed position after completion of the switching interval, such that the load current selectively flows through the MEMS switch and the solid state switching circuitry.Type: ApplicationFiled: October 22, 2015Publication date: April 27, 2017Inventors: Yanfei Liu, Glenn Scott Claydon, Christopher Fred Keimel, Christian Michael Giovanniello, JR.
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Publication number: 20170117109Abstract: A switching system includes a MEMS switching circuit having a MEMS switch and a driver circuit. An auxiliary circuit is coupled in parallel with the MEMS switching circuit, the auxiliary circuit comprising first and second connections that connect the auxiliary circuit to the MEMS switching circuit on opposing sides of the MEMS switch, first and second solid state switches connected in parallel, and a resonant circuit connected between the first and second solid state switches. A control circuit controls selective switching of a load current towards the MEMS switching circuit and the auxiliary circuit by selectively activating the first and second solid state switches and the resonant circuit so as to limit a voltage across the MEMS switch by diverting at least a portion of the load current away from the MEMS switch to flow to the auxiliary circuit prior to the MEMS switch changing state.Type: ApplicationFiled: October 22, 2015Publication date: April 27, 2017Inventors: Yanfei Liu, Glenn Scott Claydon, Christopher Fred Keimel, Christian Michael Giovanniello, JR.
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Publication number: 20170117111Abstract: A switching system includes a control circuit that receives On-Off signals indicative of a desired operating state of a switch. The control circuit includes an oscillator that generates a first electrical pulse responsive having a first signal characteristic or a second signal characteristic that is determined by the received On-Off signal, which may be related to a frequency or duty cycle of the pulse. A pulse transformer connected to the oscillator receives the first electrical pulse and outputs a second electrical pulse having the same one of the first signal characteristic and the second signal characteristic as the first electrical pulse. A pulse detection circuit in the control circuit receives the second electrical pulse, determines whether the second electrical pulse has the first signal characteristic or the second signal characteristic, and controls transmission of power and control signals to the switch based on this determination.Type: ApplicationFiled: October 22, 2015Publication date: April 27, 2017Inventors: Yanfei Liu, Glenn Scott Claydon, Christopher Fred Keimel, Christian Michael Giovanniello, JR.
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Publication number: 20170066645Abstract: A system and method for a micro-electrical-mechanical system (MEMS) device including a substrate and a free-standing and suspended electroplated metal MEMS structure formed on the substrate. The free-standing and suspended electroplated metal MEMS structure includes a metal mechanical element mechanically coupled to the substrate and a seed layer mechanically coupled to and in electrical communication with the mechanical element, the seed layer comprising at least one of a refractory metal and a refractory metal alloy, wherein a thickness of the mechanical element is substantially greater than a thickness of the seed layer such that the mechanical and electrical properties of the free-standing and suspended electroplated metal MEMS structure are defined by the material properties of the mechanical element.Type: ApplicationFiled: September 3, 2015Publication date: March 9, 2017Inventors: Joleyn Eileen Brewer, Christopher Fred Keimel, Marco Francesco Aimi, Andrew Minnick, Renner Stephen Ruffalo
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Publication number: 20170067742Abstract: A gyroscope includes at least one anchor and a plurality of gyroscope spring elements coupled to the at least one anchor. The gyroscope also includes a plurality of concentric rings coupled to the plurality of gyroscope spring elements and configured to encircle the plurality of gyroscope spring elements. The gyroscope further includes an excitation/detection/tuning unit electrostatically coupled to the plurality of concentric rings.Type: ApplicationFiled: November 4, 2015Publication date: March 9, 2017Inventors: Sergey Alexandrovich Zotov, Christopher Fred Keimel, Todd Frederick Miller, Yizhen Lin
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Publication number: 20170062890Abstract: A RF MEMS package includes a MEMS die assembly having a signal line formed on a top surface of a first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
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Publication number: 20170062889Abstract: A radio frequency (RF) microelectromechanical system (MEMS) package includes a first mounting substrate, a signal line formed on a top surface of the first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and a ground assembly coupled to the first mounting substrate. The ground assembly includes a second mounting substrate, a ground plane formed on a bottom surface of the second mounting substrate, and at least one electrical interconnect extending through a thickness of the second mounting substrate to contact the ground plane, wherein the ground plane is spaced apart from the signal line.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
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Patent number: 9570783Abstract: A RF MEMS package includes a MEMS die assembly having a signal line formed on a top surface of a first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.Type: GrantFiled: August 28, 2015Date of Patent: February 14, 2017Assignee: General Electric CompanyInventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
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Patent number: 9556573Abstract: A breakwater (wave attenuation system) includes two horizontal tubes as buoyant members connected to one another, their cross-sections representing vertices of a triangle, whose legs are interconnecting struts. A perforated, submerged, ballast tube forms the third vertex. Wave motion is perpendicular to the length of the float tubes tethered to an anchor at the sea floor. A lead float tube rises in response to an approaching wave, often cutting off the wave crest, while a trailing float tube rises less and later as the wave passes. Asynchronous rising and falling of the leading and trailing, floating, top tubes rocks the breakwater, redirecting and dissipating wave momentum, energy, and water volume by rotating the assembly, thrashing the water.Type: GrantFiled: May 14, 2015Date of Patent: January 31, 2017Inventor: Christopher Fred Betcher
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Patent number: 9465160Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.Type: GrantFiled: August 20, 2013Date of Patent: October 11, 2016Assignee: General Electric CompanyInventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra
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Publication number: 20160220158Abstract: An array of emitters includes a device substrate having first and second sides, a thermally and electrically conductive layer disposed on the first side of the device substrate, and an interconnect layer disposed on a first plurality of portions of the second side of the device substrate. The array of the emitters further includes a plurality of emitters disposed in a second plurality of portions of the device substrate, where the plurality of emitters is electrically coupled to the thermally and electrically conductive layer. Also, the array of the emitters includes a plurality of wirebond contacts configured to electrically couple a portion of the interconnect layer to a corresponding emitter of the plurality of emitters, and a plurality of encapsulations, where one or more encapsulations of the plurality of encapsulations are disposed on at least a portion of a corresponding wirebond contact of the plurality of wirebond contacts.Type: ApplicationFiled: April 7, 2016Publication date: August 4, 2016Inventors: Jason Harris Karp, Christopher James Kapusta, Paul Jeffrey Gillespie, Christopher Fred Keimel, Jeffrey Michael Ashe, James Enrico Sabatini
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Publication number: 20160164161Abstract: An ohmic RF MEMS relay includes a substrate with a capacitive coupling, Csub; two actuating elements electrically coupled in series, so as to define a channel, wherein the actuating elements are configured to be independently actuated or simultaneously operated. The actuating elements have their own capacitive coupling, Cgap; a midpoint on the channel is in electrical communication with the actuating elements; and an anchor mechanically coupled to the substrate and supporting at least one of the actuating elements. Also, an ohmic RF MEMS relay that includes an input port; a plurality of first MEMS switches that make up a first switching group in electrical communication with the input port, thereby defining a plurality of channels each leading from each of the MEMS switches; and at least one outlet port along each of the channels distal from the first switching group and in electrical communication with the input port.Type: ApplicationFiled: December 3, 2014Publication date: June 9, 2016Inventors: Yongjae Lee, Marco Francesco Aimi, Glenn Scott Claydon, Christopher Fred Keimel
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Patent number: 9362608Abstract: An ohmic RF MEMS relay includes a substrate with a capacitive coupling, Csub; two actuating elements electrically coupled in series, so as to define a channel, wherein the actuating elements are configured to be independently actuated or simultaneously operated. The actuating elements have their own capacitive coupling, Cgap; a midpoint on the channel is in electrical communication with the actuating elements; and an anchor mechanically coupled to the substrate and supporting at least one of the actuating elements. Also, an ohmic RF MEMS relay that includes an input port; a plurality of first MEMS switches that make up a first switching group in electrical communication with the input port, thereby defining a plurality of channels each leading from each of the MEMS switches; and at least one outlet port along each of the channels distal from the first switching group and in electrical communication with the input port.Type: GrantFiled: December 3, 2014Date of Patent: June 7, 2016Assignee: General Electric CompanyInventors: Yongjae Lee, Marco Francesco Aimi, Glenn Scott Claydon, Christopher Fred Keimel
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Publication number: 20160132858Abstract: A consumer accesses a secure area of a transaction account website and provides their login information for retail websites. The transaction account issuer or a third party creates a script that logs in to the retail websites on behalf of the consumer and transmits transaction account information associated with the transaction account. The script sets the transaction account as the default payment method for the retail website. The transaction account information may be evergreen, such that whenever the transaction account information changes, the script updates the retail websites.Type: ApplicationFiled: January 19, 2016Publication date: May 12, 2016Applicant: American Express Travel Related Services Company, Inc.Inventors: Cindy E. Chin, I-Hsin Chuang, Christopher Fred, Carrie L. Parker
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Patent number: 9292869Abstract: A consumer accesses a secure area of a transaction account website and provides their login information for retail websites. The transaction account issuer or a third party creates a script that logs in to the retail websites on behalf of the consumer and transmits transaction account information associated with the transaction account. The script sets the transaction account as the default payment method for the retail website. The transaction account information may be evergreen, such that whenever the transaction account information changes, the script updates the retail websites.Type: GrantFiled: October 18, 2012Date of Patent: March 22, 2016Assignee: AMERICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC.Inventors: Cindy E. Chin, I-Hsin Chuang, Christopher Fred, Carrie L. Parker
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Publication number: 20150330046Abstract: A breakwater (wave attenuation system) includes two horizontal tubes as buoyant members connected to one another, their cross-sections representing vertices of a triangle, whose legs are interconnecting struts. A perforated, submerged, ballast tube forms the third vertex. Wave motion is perpendicular to the length of the float tubes tethered to an anchor at the sea floor. A lead float tube rises in response to an approaching wave, often cutting off the wave crest, while a trailing float tube rises less and later as the wave passes. Asynchronous rising and falling of the leading and trailing, floating, top tubes rocks the breakwater, redirecting and dissipating wave momentum, energy, and water volume by rotating the assembly, thrashing the water.Type: ApplicationFiled: May 14, 2015Publication date: November 19, 2015Inventor: Christopher Fred Betcher
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Patent number: 9188113Abstract: A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.Type: GrantFiled: December 7, 2013Date of Patent: November 17, 2015Assignee: General Electric CompanyInventors: Christopher Michael Puleo, Christopher Fred Keimel, Craig Patrick Galligan
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Patent number: 9103331Abstract: An electroosmotic pump comprises a plurality of membranes comprising one or more positive electroosmotic membranes and one or more negative electroosmotic membranes, a plurality of electrodes comprising cathodes and anodes, and a power source. Each of the positive electroosmotic membranes and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on other side of the membrane. At least one of the cathodes or anodes is disposed between a positive electroosmotic membrane and negative electroosmotic membrane.Type: GrantFiled: December 15, 2011Date of Patent: August 11, 2015Assignee: General Electric CompanyInventors: Christopher Michael Puleo, Christopher Fred Keimel, Xiaohui Chen, Ralf Lenigk, Craig Patrick Galligan, Todd Frederick Miller
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Publication number: 20150133753Abstract: An array of emitters includes a device substrate having first and second sides, a thermally and electrically conductive layer disposed on the first side of the device substrate, and an interconnect layer disposed on a first plurality of portions of the second side of the device substrate. The array of the emitters further includes a plurality of emitters disposed in a second plurality of portions of the device substrate, where the plurality of emitters is electrically coupled to the thermally and electrically conductive layer. Also, the array of the emitters includes a plurality of wirebond contacts configured to electrically couple a portion of the interconnect layer to a corresponding emitter of the plurality of emitters, and a plurality of encapsulations, where one or more encapsulations of the plurality of encapsulations are disposed on at least a portion of a corresponding wirebond contact of the plurality of wirebond contacts.Type: ApplicationFiled: November 14, 2013Publication date: May 14, 2015Applicant: General Electric CompanyInventors: Jason Harris Karp, Christopher James Kapusta, Paul Jeffrey Gillespie, Christopher Fred Keimel, Jeffrey Michael Ashe, James Enrico Sabatini
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Publication number: 20150055924Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.Type: ApplicationFiled: August 20, 2013Publication date: February 26, 2015Applicant: General Electric CompanyInventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra