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Culham

Earl Alexander Culham, Edmonton CA

Patent application numberDescriptionPublished
20100171862Parallax Camera and Display Screen - In the beginning, display screens were monochrome, and a video artist was limited to specifying the brightness of a pixel. With the advent of color display screens, the artist could specify the color and brightness of a pixel. With this invention, the artist can now additionally specify the direction from which that color and brightness can be seen. I anticipate a single pixel being capable of displaying different colors in different directions at the same time. This invention also describes a camera capable of capturing this directional information.07-08-2010

J. Richard Culham, Waterloo CA

Patent application numberDescriptionPublished
20110153242THERMOCOUPLE MEASUREMENT IN A CURRENT CARRYING PATH - A method of measuring a temperature of a wire and a current flowing through the wire with a thermocouple includes taking a first voltage reading from the thermocouple with the current at a first polarity, and taking a second voltage reading from the thermocouple with the current at a second polarity. The first voltage reading is averaged with the second voltage reading to obtain an average voltage reading, which is referenced to a correlation table to calculate the temperature of the wire. Half of a voltage difference between the first voltage reading and the second voltage reading is divided by the resistance in the wire to calculate the current flowing through the wire.06-23-2011

Louise Ellen Culham, Auburn, WA US

Patent application numberDescriptionPublished
20090303440DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION - A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.12-10-2009

Patent applications by Louise Ellen Culham, Auburn, WA US