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Crill

Dick Crill, Snyder, TX US

Patent application numberDescriptionPublished
20110146980METHODS OF USE OF A SALT SOLUTION OF MONOVALENT AND DIVALENT CATIONS IN HYDRAULIC FRACTURING - The invention provides a method for fracturing a subterranean formation penetrated by a well bore, by formulating a fracturing fluid useful in hydrocarbon drilling having the properties of both a dispersing fracture solution and an aggregating fracture solution. In particular, the dispersing properties of the stabilizing fracture solution are able to act as a dispersing fracture fluid in the clay and earthen materials discharged from the pay zone, in the flow-back fluids during hydraulic fracturing. At the same time, aggregating properties of the stabilizing solution stabilizes the pay zone. This stabilization property allows the flow of hydrocarbon through the fractures for a significantly longer time than with prior art fluids.06-23-2011

Peter Crill, Encinitas, CA US

Patent application numberDescriptionPublished
20090140732Low cost simplified spectrum analyzer for magnetic head/media tester - An electronic component tester characterizes electronic components such as magnetic head/media components measure performance parameters such as signal-to-noise ratio and overwrite evaluation. The electronic component tester has a tester process controller and a spectrum analyzer. The tester process controller generates calibration and control signals for the electronic component tester. The spectrum analyzer is in communication with electronic components such as magnetic head or media components to receive a response characterization signal resulting from a stimulus signal applied to the electronic components. The spectrum analyzer then determines a frequency spectrum of the response characterization signal. The spectrum analyzer is also in communication with the tester process controller for transferring the frequency spectrum to the tester process controller. The spectrum analyzer receives the calibration and control signals from the tester process controller for removing effects of an image frequency of the frequency spectrum and determining noise bandwidth of the frequency spectrum.06-04-2009
20090207516Iterative repeatable run-out nulling for magnetic head tester - A method for operating a head testing apparatus or, more generally, a host hard disk drive using a mounted hard disk that has had its servo track information pre-written in an external servo-writing apparatus rather than in the head testing or host apparatus itself. The method eliminates repeatable errors and repeatable runout by effectively replacing the pre-written servo tracks, which are eccentric, with new track profiles that are tracked like circular tracks. The problem of repeatable errors is caused by repeatable runout superimposed upon written-in position errors when a disk written in one machine is transferred to another. This problem is eliminated by forming IRON (Iterative Repeatable Runout Nulling) profile tracks from the initially pre-written servo tracks, where the IRON profile tracks are effectively tracked as concentric circular tracks and generate no PES. The IRON profile is formed by an iterative method that starts with the measurement of the PES of one of the pre-written tracks and iteratively forms a new track profile that is effectively circular.08-20-2009

Rikk Crill, Longmont, CO US

Patent application numberDescriptionPublished
20090103052NON-RIGIDLY COUPLED, OVERLAPPING, NON-FEEDBACK, OPTICAL SYSTEMS FOR SPATIAL FILTERING OF FOURIER TRANSFORM OPTICAL PATTERNS AND IMAGE SHAPE CONTENT CHARACTERIZATION - Non-rigidly coupled, overlapping, non-feedback optical systems for spatial filtering of Fourier transform optical patterns and image shape characterization comprises a first optical subsystem that includes a lens for focusing a polarized, coherent beam to a focal point, an image input device that spatially modulates phase positioned between the lens and the focal point, and a spatial filter at the Fourier transform pattern, and a second optical subsystem overlapping the first optical subsystem includes a projection lens and a detector. The second optical subsystem is optically coupled to the first optical subsystem.04-23-2009

Wayne D. Crill, Fort Collins, CO US

Patent application numberDescriptionPublished
20080248064Localization and Characterization of Flavivirus Envelope Gylcoprotein Cross-Reactive Epitopes and Methods for their Use - Disclosed herein is a method for identifying flavivirus cross-reactive epitopes. Also provided are flavivirus E-glyco-protein cross-reactive epitopes and flavivirus E-glycoprotein crossreactive epitopes having reduced or ablated cross-reactivity (and polypeptides comprising such epitopes), as well as methods of using these molecules to elicit an immune response against a flavivirus and to detect a flaviviral infection.10-09-2008
20110059131LOCALIZATION AND CHARACTERIZATION OF FLAVIVIRUS ENVELOPE GLYCOPROTEIN CROSS-REACTIVE EPITOPES AND METHODS FOR THEIR USE - Disclosed herein is a method for identifying flavivirus cross-reactive epitopes. Also provided are flavivirus E-glycoprotein cross-reactive epitopes and flavivirus E-glycoprotein cross-reactive epitopes having reduced or ablated cross-reactivity (and polypeptides comprising such epitopes), as well as methods of using these molecules to elicit an immune response against a flavivirus and to detect a flaviviral infection.03-10-2011