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Gratton, US

Andrew R. Gratton, Fayetteville, AR US

Patent application numberDescriptionPublished
20100288874ENGINE MOUNT BEARING SLEEVE REPAIR - Bearing bores for engine mount components must be periodically repaired. A component is disassembled and a bearing is removed from the bearing bore. An inner surface of the bearing bore is machined to remove any damage. A sizing sleeve is selected to have a press fit with the machined inner surface of the bearing bore and with the outer surface of a new bearing. The bearing is press fit into the sizing sleeve and the sizing sleeve is press fit into the bearing bore. The outer surfaces of the sizing sleeve and the bearing are swaged to assist in retaining and preventing relative movement between the bearing, sizing sleeve and engine mount component.11-18-2010

Enrico Gratton, San Clemente, CA US

Patent application numberDescriptionPublished
20100315591METHOD AND DEVICE FOR TEAR FILM ANALYSIS - Tear film stability has an important role in the quality of vision. A system and method for performing Fluctuation Analysis of Spatial Image Correlation (FASIC) provides for a non-invasive system and method for evaluating the dynamics of the tear film surface using spatial autocorrelation analysis. With FASIC, a series of images are obtained using illumination and a camera. The spatial autocorrelation is calculated for image frames produced by the camera. A sinusoidal background appears in this correlation together with other features. The changes in the sinusoidal background of the spatial autocorrelation is extracted and monitored over time. The spatial period of this sinusoidal background correlates with the thickness of the tear film. In this regard, one is able to derive the tear film thickness from the period of this sinusoidal background.12-16-2010

Enrico Gratton, Urbana, IL US

Patent application numberDescriptionPublished
20090230324Methods and Devices for Characterizing Particles in Clear and Turbid Media - The invention provides methods and devices for detecting, identifying, classifying and characterizing particles in a fluid sample. Optical analyzers are provided having a rotating and/or translating sample container for measuring the concentrations of fluorescent particles present in very low concentrations and for characterizing fluorescent particles on the basis of size, shape, diffusion constant and/or composition. Scanning optical analyzers are provided using pattern recognitions data analysis techniques and multichannel detection.09-17-2009

Enrico Gratton, Irvine, CA US

Patent application numberDescriptionPublished
20080300493Optical microprobe for blood clot detection - The invention is devices and related methods for detecting blood clots in a blood vessel. An optical microprobe is configured to illuminate a blood vessel with electromagnetic radiation corresponding to the near-infrared portion of the electromagnetic spectrum. The optical microprobe has a pair of fiber optic strands configured for transmission spectroscopy to obtain the absorption spectrum generated by the components within the blood vessel. Because blood clots generate a detectable and unique spectrum, the presence or absence of the blood clot is determined by examining the blood vessel absorption spectrum. A specially-designed holder is configured to stably position the optical microprobe relative to the blood vessel and is used to facilitate precise blood clot detection along a length of blood vessel.12-04-2008

Jason A. Gratton, Chandler, AZ US

Patent application numberDescriptionPublished
20080251144CUTBACK POPPET VALVE - A valve includes a valve body and a free floating poppet. The valve body includes an inlet, an outlet, and a fluid flow passage therebetween. The free floating poppet is disposed in the valve body, and is moveable between at least a closed position, in which the free floating poppet at least substantially restricts fluid from flowing through the fluid flow passage, and an open position, in which fluid is allowed to flow through the fluid flow passage. The free floating poppet includes a base section and a cutback section. The base section has a first cross sectional area. The cutback section has a second cross sectional area that is less than the first cross sectional area.10-16-2008

Patent applications by Jason A. Gratton, Chandler, AZ US

Luca Joseph Gratton, West Hollywood, CA US

Patent application numberDescriptionPublished
20090272906Method and apparatus for the identification of lithospheric or shielded material deposits by doppler-shifted response photon spectra from interrogation by ionizing radiation - A method and apparatus for the remote, non-invasive detection or characterization of materials manifests a controlled temperature perturbation to the sample material location concurrently with sample interrogation by ionizing radiation and with detection of the response emission energy spectra. This configuration induces and detects Doppler effects manifested at the sample location, allowing material inventory and composition measurements, and allowing a comparative reduction of the exposure duration compared to other isothermal proportional count, coincidence count or spectral analysis techniques. The method and apparatus apply primarily to the detection of elements and isotopes in baggage handling, cargo inspection, chemical characterization, process control and geologic operations, though the method and apparatus are not restricted to these applications. Though the magnitudes of the measured effects are substance specific, the contributing physical processes are not strictly material dependent, allowing method and apparatus applications to almost any high-energy photon-emitting material in multiple applications.11-05-2009
20100175854Method and apparatus for multi-functional capillary-tube interface unit for evaporation, humidification, heat exchange, pressure or thrust generation, beam diffraction or collimation using multi-phase fluid - A method and apparatus for heat exchange with a volatile fluid in a parallel-channel capillary network traversing a solid receiver module manifests a multi-functional miniature device capable of performing as an evaporator, a condenser, a humidifier, a single-stream heat exchanger, a pressure generator, a thrust motor, a Fraunhofer diffraction device, or a collimation device. Heat is exchanged at a dedicated interface on the body by thermal contact or radiative fluence, and indirectly with the working fluid. Application-specific process control is manifested by applied heat rate, control of fluid saturation levels and vapor partial pressure at the capillary ends, and arrangement of flow network connections. The system operates in steady-state or transient modes, depending on the adapted functional mode and duty cycle. Specific materials and working fluids tolerate transient system performance levels of apparent heat rates exceeding 10 [MW/m07-15-2010

Max Stephen Gratton, Lakewood, CO US

Patent application numberDescriptionPublished
20100247067Apparatus And Methods For Recording Adjacent Time Slots Of Television Programming On The Same Channel - Various embodiments described herein provide techniques for a DVR to utilize the same data stream to record multiple events with adjacent time slots simultaneously. A DVR is configured to recognize when two recording timers for programs on the same channel overlap. Content for each program may be stored in separate event files on the DVR or the content in one event file may be linked with the content in another event file. Thus, overlapping content may be accessed through either of the event files.09-30-2010

Michael R. Gratton, Dubuque, IA US

Patent application numberDescriptionPublished
20080208428METHOD OF DETERMINING WHEEL SLIPPAGE AND ENGAGING A DIFFERENTIAL LOCK IN A WORK VEHICLE - A method of determining wheel slippage in a work vehicle includes the steps of: sensing an absolute ground speed of the work vehicle; calculating a ground speed of the work vehicle using at least one drive train component; comparing the absolute ground speed with the calculated ground speed; generating a scaling factor based upon the comparison; and adjusting the calculated ground speed using the scaling factor. The method may also include the steps of scaling the absolute ground speed to a threshold value; comparing the calculated ground speed with the threshold value; and engaging a differential lock if the calculated ground speed is greater than the threshold value.08-28-2008