Leuprecht
Alexander Leuprecht, Weissenbach AT
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20110143261 | SHAPED PART - A shaped part that is particularly suited as an interconnector or an end plate for a fuel cell stack, is produced by pressing and sintering a pulverulent starting material. The shaped part has a disc-shaped or plate-shaped basic body with a multiplicity of knob-like and/or ridge-like elevations with a height h. In cross section, each elevation has two inclined side flanks which lead, proceeding from an end contour of the elevation, via rounded corner portions, with a radius r or r′ directly or via intermediate rectilinear portions, into curved portions, with a radius R or R′, which in turn merge into the surface contour, of the basic body. The rectilinear portions, or, in the case of a direct transition of the rounded corner portions, into the curved portions, the tangents at the point of the transition, have an angle of inclination α or α′ with respect to the surface contour, in the range of 95° to 135°. The radius R or R′ is in the range of 0.15 to 1 mm and the height h is dimensioned such that the ratio R:h or R′:h is in a range of 0.25 to 1. | 06-16-2011 |
20140193287 | METHOD OF PRODUCING A SHAPED PART - A shaped part that is particularly suited as an interconnector or an end plate for a fuel cell stack, is produced by pressing and sintering a pulverulent starting material. The shaped part has a basic body with a multiplicity of knob-like and/or ridge-like elevations with a height h. Each elevation has two inclined side flanks which lead, proceeding from an end contour of the elevation, via rounded corner portions, directly or via intermediate rectilinear portions, into curved portions with a radius R or R′, which in turn merge into the surface contour, of the basic body. A ratio of the radius R:h or R′:h ranges from 0.25, or preferably from 0.5 to 1. | 07-10-2014 |
Gernot Leuprecht, St. Radegund Bei Graz AT
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20110101844 | SPARK PLUG HAVING PRESSURE SENSOR - A spark plug is intended for combustion engines and comprises a metal housing having a ground electrode disposed at the front and a thread having a rear sealing surface for installation in the combustion engine. The spark plug in particular includes a pressure sensor disposed laterally in the housing for determining a combustion chamber pressure and a ceramic body having a center electrode. The ceramic body is disposed in the housing next to the pressure sensor and acting as an electric insulator. As viewed from the combustion chamber, the ceramic body defines a front clamping shoulder and a rear stop for clamping the ceramic body into the housing. The outside diameter of the ceramic body gradually decreases in the region of the thread located between the rear sealing surface and the front clamping shoulder. | 05-05-2011 |
Helmut Leuprecht, Wien AT
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20080255241 | Self-Sterilized, Antiseptic Collagen Preparations, Their Use and Methods For Producing Them - A method is provided for sterilizing a collagen preparation and for production of self-sterilized, antiseptic collagen preparations. The preparations may be used for producing collagen products, such as sponges, films or gels, especially for medical and/or cosmetic purposes. | 10-16-2008 |
20090306157 | Antiseptic Alginate Preparation - An antiseptic preparation is provided for the production of wound dressings or bandages. The preparation includes at least one alginate and at least one antiseptically active substance selected from the group biguanide derivatives, octenidine and taurolidine. Processes for the production of the antiseptic preparations, and the use thereof, are also provided. | 12-10-2009 |
Helmut Leuprecht, Vienna AT
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20090062712 | MATERIAL FOR PRODUCING A SUPPORT BANDAGE - A material for producing a support bandage, which comprises a support. Said support is coated and/or impregnated with a curable plastic material and at least partially configured by a leno fabric comprising warp yarns that cross between two weft yarns running in parallel. Said leno fabric comprises at least one additional warp yarn that is located between two pairs of crossing warp yarns and does not cross any other warp yarn. | 03-05-2009 |