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Peter Alfred
Peter Alfred Blacklin, Columbia, MD US
| Patent application number | Description | Published |
|---|---|---|
| 20110314900 | SAMPLING DEVICE AND METHOD - An in situ autosampling method and associated sampling device for capturing a material sample from a vessel. Methods of the present invention make use of a sampling device having an extendable sample capture element with a concave sample capture pocket located near a distal end thereof. The sample capture pocket is adapted to capture a known volume of material when the sample capture element is extended into said material. The material sample remains trapped in the sample capture pocket upon sample capture element retraction. Ports in the sample capture pocket may be placed in communication with corresponding material transfer channels extending through the sample capture element to allow for the in situ processing of a material sample, and the subsequent discharge of the sample to an analyzer or another downstream location. | 12-29-2011 |
| 20110318243 | SAMPLING DEVICE - An in situ sampling device for capturing a material sample from a vessel. Embodiments of the present invention may be disposed as elongate probes having extendable sample capture elements. A sample capture element of such a device may include a concave sample capture pocket located near a distal end thereof. The sample capture pocket is adapted to capture a known volume of material when the sample capture element is extended into said material. The material sample remains trapped in the sample capture pocket upon sample capture element retraction. The sample capture pocket may be provided with a port for receiving material therein and a port for expelling material therefrom. These ports may be placed in communication with corresponding material transfer channels extending through the sample capture element. A device of the present invention provides for substantially contemporaneous sample capture and sample processing. | 12-29-2011 |
Peter Alfred Kreissig, Steamboat Springs, CO US
| Patent application number | Description | Published |
|---|---|---|
| 20110031750 | WAVE POWERED ELECTRICITY GENERATION - The generation of electricity using waves on a body of water is disclosed herein. Two flotation devices floating on a body of water are each attached to cables that extend to anchors at an ocean/sea/lake floor. The cables slideably attach to the anchors, further extend along the floor, and then connect to a stationary generator station located on or near land adjacent the body of water. As the waves propagate on the water, each of the flotation devices moves in an elliptical fashion as each wave passes underneath each flotation device. The periodic oscillatory motion of each of the flotation devices causes the cables to likewise periodically retract and extend from the station. The periodic retraction/extension of the cables provides the mechanical power necessary for the station to generate electricity. The station includes mechanical and electrical equipment associated with the wave-powered electricity generation system, including an electrical generator. | 02-10-2011 |
Peter Alfred Zabback, Kirkland, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20080306903 | CARDINALITY ESTIMATION IN DATABASE SYSTEMS USING SAMPLE VIEWS - A system and method that facilitates and effectuates estimating the result of performing a data analysis operation on a set of data. Employing an approximation of the data analysis operation on a statistically valid random sample view of the data allows for a statistically accurate estimate of the result to be obtained. Sequential sampling in the view enables the approximated operation to evaluate accuracy conditions at intervals during the scan of the sample view and obtain the estimated result without having to scan the entire sample view. Feedback regarding the accuracy of the estimated result can be captured when the data analysis operation is performed against the set of data. Process control techniques can be employed with the feedback to maintain the statistical validity of the sample view. | 12-11-2008 |
| 20100138407 | GENERATING HISTOGRAMS OF POPULATION DATA BY SCALING FROM SAMPLE DATA - Histograms formed based on samples of a population, such as histograms created from random page-level samples of a data store, are intelligently scaled to histograms estimating distribution of the entire population of the data store. As an optional optimization, where a threshold number of duplicate samples are observed during page-level sampling, the number of distinct values in the overall population data is presumed to be the number of distinct values in the sample data. Also, during estimation of distinct values of an overall population, a “Chao” estimator can optionally be utilized as a lower bound of the estimate. The resulting estimate is then used when scaling, which can take domain knowledge of the data being scaled into account in order to prevent scaled estimates from exceeding the limits of the domain. Also, a “sum of the parts” mathematical relationship can be taken into account during scaling that the sum of the scaled distinct values for each bin of an estimate histogram should total an estimate for the total distinct values of the entire population. | 06-03-2010 |