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Hemmingsson
Jonas Hemmingsson, Stockholm SE
| Patent application number | Description | Published |
|---|---|---|
| 20110006526 | Pitch control arrangement for wind turbine - A pitch control arrangement for a wind turbine of the vertical axis type. Cam element and cam follower element are arranged to set the pitch angle of a turbine blade in accordance with a predetermined cyclic variation. The cam element includes a cam surface of different cam profiles, which define different predetermined cyclic variation of the pitch angle. The present invention provides an improved efficiency for a wind turbine irrespective of actual wind conditions, and further, both self-starting capability and high efficiency at a wide range of rotation speeds is accomplished using a simple and reliable construction. | 01-13-2011 |
Lars Hemmingsson, Stockholm SE
| Patent application number | Description | Published |
|---|---|---|
| 20110008576 | Method, Material and Apparatus for Enhancing Dynamic Stiffness - A composite, carbon based material that can be used for enhancing the dynamic stiffness of objects, in the case where it for instance is applied as a coating, comprises at least one layer of substantially parallel carbon pillars. The pillars extend from the bottom surface up to the top surface of the layer, substantially perpendicularly to said surfaces, have substantially hexagonal or pentagonal cross-sections and a relatively weak conical shape, their cross-section widening from their bottom ends to their top ends. The carbon based pillars can typically have a cross-sectional dimension in the range of 50-200 μm such as about 100 μm and have heights in the range of 50 μm-2 mm. The pillars can be seen as built from macro-sized aggregates that have at least one dimension in the nano range, e.g. in the range of 10-800 run, and include carbon, oxygen and hydrogen and in most cases also nitrogen. The material can be produced using PECVD, PEPVD methods and plasma generation by electric discharges with closed electron drift. | 01-13-2011 |
Tryggve Hemmingsson, Sollentuna SE
| Patent application number | Description | Published |
|---|---|---|
| 20100043523 | METHOD AND DEVICE FOR TESTING THE MEASURING ACCURACY OF A MEASURING DEVICE - A method for testing the measuring accuracy of a measuring device ( | 02-25-2010 |
| 20100089121 | METHOD AND DEVICE FOR TESTING THE MEASURING FUNCTION OF A MEASURING DEVICE - The present invention relates to the field of gas measurements, and more specifically to the field of testing the measuring function of a measuring device ( | 04-15-2010 |
| 20110066060 | APPARATUS AND METHOD FOR DIAGNOSTIC GAS ANALYSIS - A handheld, small but accurate and reliable device for diagnostic NO measurements using a NO sensor, where the parameters governing the taking of the sample are different from the parameters optimal for the accuracy of said NO sensor I described. By temporarily storing a portion of the exhaled air, and feeding this to the sensor at a flow rate adapted to the NO sensor, the accuracy and sensitivity of a system/method involving NO sensors, in particular electrochemical NO sensors, can be increased. The method for diagnostic NO measurements comprises steps for controlling the inhalation of NO free air, as well as the exhalation, both by built-in means and by audible and/or visual feedback to the patient. | 03-17-2011 |