Patents by Inventor Eric Fitch
Eric Fitch 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: 20180370830Abstract: Disclosed are methods and systems for minimizing downtime for waste processing plants by serially processing a potentially mixed waste stream including a solid fraction, low-strength wastewater, and/or high-strength wastewater in a plurality of anaerobic digesters (e.g., plug flow, upflow and fixed-film), and treating the processed liquid output with a plurality of tertiary wastewater treatments (e.g., ultrafiltration, reverse osmosis, precipitation), to produce a low suspended solids liquid and a high suspended solids liquid, and returning at least a portion of the high suspended solids liquid to the plurality of anaerobic digesters.Type: ApplicationFiled: June 22, 2017Publication date: December 27, 2018Applicant: Purpose Energy, Inc.Inventors: Eric Fitch, David M. O'Keefe, Michael Ditton
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Patent number: 7629137Abstract: Methods for detecting bacteria are provided. A plurality of particles, each of which is coated with a capture agent having an affinity for the bacteria, is combined with the sample to form a plurality of analyte-particle complexes. The system also includes a transport arrangement for transporting the sample to the sensor surface, and optionally a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of analyte-particle complexes that are bound to the sensor surface.Type: GrantFiled: May 2, 2006Date of Patent: December 8, 2009Assignee: BioScale, Inc.Inventors: Alexis F. Sauer-Budge, Eric Fitch, Brett P. Masters, Michael Miller, Mark Lundstrom
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Patent number: 7353695Abstract: A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteristic associated with the second state, and determining the property of the fluid by comparing the characteristic with a function that associates a plurality of properties with a corresponding plurality of characteristics. The characteristic can include a maximum phase slope, a phase slope associated with a resonant frequency, a maximum magnitude associated with the resonant frequency, the value of the resonant frequency, or any combination thereof.Type: GrantFiled: May 14, 2007Date of Patent: April 8, 2008Assignee: BioScale, Inc.Inventors: Eric Fitch, Stuart Wenzel
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Publication number: 20070281371Abstract: A system for detecting an analyte in a sample includes a resonant sensor that has a sensor surface coated with the capture agent. A plurality of magnetic particles, each of which is coated with a capture agent having an affinity for the analyte, is combined with the sample to form a plurality of analyte-particle complexes. The system also includes a transport arrangement for transporting the sample to the sensor surface, and a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of analyte-particle complexes that are bound to the sensor surface.Type: ApplicationFiled: February 21, 2007Publication date: December 6, 2007Applicant: BioScale, Inc.Inventors: Michael Miller, Brett Masters, Mark Lundstrom, Eric Fitch
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Publication number: 20070204679Abstract: A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteristic associated with the second state, and determining the property of the fluid by comparing the characteristic with a function that associates a plurality of properties with a corresponding plurality of characteristics. The characteristic can include a maximum phase slope, a phase slope associated with a resonant frequency, a maximum magnitude associated with the resonant frequency, the value of the resonant frequency, or any combination thereof.Type: ApplicationFiled: May 14, 2007Publication date: September 6, 2007Inventors: Eric Fitch, Stuart Wenzel
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Patent number: 7263874Abstract: A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteristic associated with the second state, and determining the property of the fluid by comparing the characteristic with a function that associates a plurality of properties with a corresponding plurality of characteristics. The characteristic can include a maximum phase slope, a phase slope associated with a resonant frequency, a maximum magnitude associated with the resonant frequency, the value of the resonant frequency, or any combination thereof.Type: GrantFiled: June 8, 2005Date of Patent: September 4, 2007Assignee: BioScale, Inc.Inventors: Eric Fitch, Stuart Wenzel
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Publication number: 20070037231Abstract: Methods for detecting bacteria are provided. A plurality of particles, each of which is coated with a capture agent having an affinity for the bacteria, is combined with the sample to form a plurality of analyte-particle complexes. The system also includes a transport arrangement for transporting the sample to the sensor surface, and optionally a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of analyte-particle complexes that are bound to the sensor surface.Type: ApplicationFiled: May 2, 2006Publication date: February 15, 2007Applicant: BioScale, Inc.Inventors: Alexis Sauer-Budge, Eric Fitch, Brett Masters, Michael Miller, Mark Lundstrom
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Publication number: 20060286685Abstract: A system for detecting an analyte in a sample includes a resonant sensor that has a sensor surface coated with the capture agent. A plurality of magnetic particles, each of which is coated with a capture agent having an affinity for the analyte, is combined with the sample to form a plurality of analyte-particle complexes. The system also includes a transport arrangement for transporting the sample to the sensor surface, and a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of analyte-particle complexes that are bound to the sensor surface.Type: ApplicationFiled: July 18, 2005Publication date: December 21, 2006Applicant: Bioscale, Inc.Inventors: Michael Miller, Brett Masters, Mark Lundstrom, Eric Fitch
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Publication number: 20060277979Abstract: A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteristic associated with the second state, and determining the property of the fluid by comparing the characteristic with a function that associates a plurality of properties with a corresponding plurality of characteristics. The characteristic can include a maximum phase slope, a phase slope associated with a resonant frequency, a maximum magnitude associated with the resonant frequency, the value of the resonant frequency, or any combination thereof.Type: ApplicationFiled: June 8, 2005Publication date: December 14, 2006Inventors: Eric Fitch, Stuart Wenzel
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Patent number: 6781285Abstract: A modular actuator assembly includes one or more plates or elements of electro-active material bonded to an electroded sheet, preferably by a structural polymer to form a card. The card is sealed, and may itself constitute a practical device, such as a vane, shaker, stirrer, lever, pusher or sonicator for direct contact with a solid or immersion in a fluid, or may be bonded by a stiff adhesive to make a surface-to-surface mechanical coupling with a solid workpiece, device, substrate machine or sample. The structural polymer provides a bending stiffness such that the thin plate does not deform to its breaking point, and a mechanical stiffness such that shear forces are efficiently coupled from the plate to the workpiece. In further embodiments, the card may include active circuit elements for switching, powering or processing signals, and/or passive circuit elements for filtering, matching or damping signals, so that few or no connections to outside circuitry are required.Type: GrantFiled: April 27, 1999Date of Patent: August 24, 2004Assignee: Cymer, Inc.Inventors: Kenneth B. Lazarus, Mark E. Lundstrom, Jeffrey W. Moore, Edward Crawley, Farla Russo, Shoko Yoshikawa, Eric Fitch
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Patent number: 6291928Abstract: A hybrid actuator includes strain actuated elements that displace fluid to move a piston, with the elements forming a fluid housing, and being oriented and actuated to optimize force, stroke or bandwidth. In one preferred embodiment the elements are cylinders enclosing the fluid, with radial and axial components of strain-induced dimensional change adding together to enhance displacement. In another preferred embodiment, piezo bender elements produce large stroke, high bandwidth movements. Strokes of up to fifty percent of actuator length, and bandwidths above 500 Hz are achieved in light weight electrically actuated devices free of external piping or hydraulics. The actuator is readily integrated into a gate valve, sub-woofer, or other driven device.Type: GrantFiled: December 15, 1999Date of Patent: September 18, 2001Assignee: Active Control Experts, Inc.Inventors: Kenneth B. Lazarus, Jeffrey W. Moore, Erik Saarmaa, Eric Fitch, Carl Prestia, Edward F. Crawley