Patents by Inventor Dieter Wenzel
Dieter Wenzel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7449115Abstract: The invention relates to a dialysis method of recovering foreign substances, particularly low-molecular weight inorganic and/or organic substances, from semipermeable membrane of varying length and dimensions, using a PLE (pressurized liquid extraction) apparatus. The membranes are preferably in the form of a tube, for example semipermeable membrane devices (SPMDs) which, in the form of passive samplers, accumulate foreign substances/pollutants on an absorbent or adsorbent.Type: GrantFiled: April 25, 2003Date of Patent: November 11, 2008Assignee: UFZ-Umweltforschungs Zentrum Leipzig-Halle GmbHInventors: Klaus-Dieter Wenzel, Branislav Vrana, Andreas Hubert, Brigitta Mothes, Marion Heinrich, Gerrit Schueuermann
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Publication number: 20080193636Abstract: A device for vaporizing coating material is disposed in a vacuum chamber as part of a deposition apparatus; the coating material being arranged in a crucible for vaporization purposes. The vaporizing device has an evaporation chamber that is connected, via a vacuum valve, to a loading chamber which can be evacuated while an evaporator is connected to the evaporation chamber at a vapor discharge end, i.e., the end facing the vacuum chamber, via a first vapor stop valve.Type: ApplicationFiled: April 16, 2005Publication date: August 14, 2008Applicant: VON ARDENNE ANLAGENTECHNIK GMBHInventors: Lutz Gottsman, Ulf Seyfert, Bernd-Dieter Wenzel, Reinhard Jaeger
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Publication number: 20070240636Abstract: A thermal vacuum deposition device and method in which a band-shaped substrate is continuously conveyed in a vaporization channel that is charged with a vaporous coating material is characterized in that the vaporization channel is sealed by inserting at least one positionally adjustable hollow element into an outer space of the vaporization channel and an inner space of the vaporization channel when a minimum conveying speed is not attained or when the substrate is at a standstill such that the substrate is located in the inner space.Type: ApplicationFiled: April 16, 2005Publication date: October 18, 2007Applicant: VON ARDENNE ANLAGENTECHNIK GMBHInventors: Lutz Gottsman, Ulf Seyfert, Bernd-Dieter Wenzel, Reinhard Jaeger
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Publication number: 20070218201Abstract: A coating method is provided for thermally vacuum-depositing a continuously conveyed substrate that moves within a deposition channel by vaporizing solid or liquid coating materials and vapor-depositing the vaporized coating material onto the substrate in a deposition device. In order to create a coating conveyed substrate, in which accessibility to the vaporization device is improved while the processes taking place in the deposition chamber and the vaporization device can be controlled independently of each other, at least one evaporation device is located outside the deposition chamber and delivery of steam between the evaporator and the deposition channel is regulated.Type: ApplicationFiled: April 16, 2005Publication date: September 20, 2007Applicant: VON ARDENNE ANLAGENTECHNIK GMBHInventors: Lutz Gottsman, Ulf Seyfert, Bernd-Dieter Wenzel
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Publication number: 20070209710Abstract: A valve is used for vapor-tightly disconnecting two interconnected process units. The valve comprises a continuous duct which connects two vacuum evaporators that are individually provided with an outer vapor-proof jacket, and a blocking mechanism mounted in the duct. In order to allow the two interconnected vacuum evacuators to be disconnected in a vapor-proof manner such that the functional reliability is improved, a vapor-impinged surface of the valve duct is provided with a vapor condensation-repellent zone which is connected in a thermally conducting manner to a heating apparatus that envelopes the valve.Type: ApplicationFiled: April 16, 2005Publication date: September 13, 2007Applicant: VON ARDENNE Anlagentechnik GmbHInventors: Lutz GOTTSMANN, Ulf SEYFERT, Bernd-Dieter WENZEL, Reinhard JAEGER
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Publication number: 20060086665Abstract: The invention relates to a dialysis method of recovering foreign substances, particularly low-molecular weight inorganic and/or organic substances, from semipermeable membrane of varying length and dimensions, using a PLE (pressurized liquid extraction) apparatus. The membranes are preferably in the form of a tube, for example semipermeable membrane devices (SPMDs) which, in the form of passive samplers, accumulate foreign substances/pollutants on an absorbent or adsorbent.Type: ApplicationFiled: April 25, 2003Publication date: April 27, 2006Inventors: Klaus-Dieter Wenzel, Branislav Vrana, Andreas Hubert, Brigitta Mothes, Marion Heinrich, Gerrit Schueuermann
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Patent number: 5882415Abstract: The invention is an electron-beam vaporization installation for coating structural components made of extreme-heat-resistant alloys (super alloys), especially turbine blades, with so-called thermal barrier coatings. The invention divides the continuous process principle for this coating task with extreme thermal stress for the substrata. The invention divides the thermally high stressed chambers by a partition with a slot. As a result of this the heating chamber and the coating chamber are thermally decoupled from the room for the transport system of the substrata carriage. A further characteristic of the invention is that the carriage for the transport of the substrata through the installation is cooled. For this purpose at the specific work positions the cooling system of the carriage is coupled with the exterior cooling circuits by a leakproof coupling system. The movement of the substrata is done hydraulically and is coupled with the exterior hydraulic circuits in a similar manner as the cooling system.Type: GrantFiled: October 7, 1996Date of Patent: March 16, 1999Assignee: Von Ardenne Anlagentechnik GmbHInventors: Karl Heinz Helling, Bernd-Dieter Wenzel
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Patent number: 5623148Abstract: The invention which relates to a device for the generating of electron beams with a vacuum chamber, in which a massive cathode (10) is arranged with a wire cathode (14) arranged above and a aperture anode (17) below the massive cathode (10) and whom below the aperture anode (17) focusing and/or deflecting magnet arrangements are provided which direct an electron beam (23) emitted by the massive cathode (10) and accelerated by the aperture anode (17) to a processing location (22), has the basic task to make the power of such devices variable over a large range using simple mechanical means. According to the invention the task is solved by arranging the aperture anode (17) rigidly and the massive cathode (10) and the wire cathode (14) axially movable within the vacuum chamber (1). For the movements of the massive cathode (10) and the wire cathode (14) contact means are provided which follow their movements and lead to the outside of the vacuum chamber (1).Type: GrantFiled: December 11, 1995Date of Patent: April 22, 1997Assignee: von Ardenne Anlagentechnik GmbHInventors: Bernd-Dieter Wenzel, Wolfgang Erbkamm, Olaf Gawer
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Patent number: 5076192Abstract: An unmanned submarine which is guided to the surface of the water in order to launch an air rocket contained therein and which is provided in its walls with closeable openings for the discharge of the rocket recoil gases into the surrounding water to conduct the impinging recoil gases of a launched air rocket directly out of the submarine. To create a lock for the recoil gas discharge openings which withstands high water pressures and is easily opened in the starting phase of the air rocket, the openings are disposed in the surfaces where the recoil gases impinge on the wall of the submarine, each opening is closed by a cover which is pressed out of the opening by the impinging gases, the seat for the cover in the opening is configured as an inwardly tapered conical surface, and the cover is held in the opening by a transport safety which is released by the action of the pressure of the recoil gases or the cover.Type: GrantFiled: November 9, 1990Date of Patent: December 31, 1991Assignee: DMT Marinetechnik GmbHInventors: Marek Tegel, deceased, Dieter Wenzel
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Patent number: 5069398Abstract: A protection arrangement for a guide cable of an air rocket started from a launcher and guided into a target by the guide cable. A glass fiber cable is employed as the guide cable for controlling the air rocket. A liquid absorbing material covers at least a portion of the glass fiber cable. A coil chamber at least partially filled with a liquid is provided for storing the glass fiber cable covered with the liquid absorbing material wound in a coil prior to being unwound upon launching of the air rocket.Type: GrantFiled: December 7, 1990Date of Patent: December 3, 1991Assignee: DMT Marinetechnik GmbHInventors: Marek Tegel, deceased, Dieter Wenzel
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Patent number: 5062345Abstract: A cap for a rocket exit opening of a mobile rocket launcher for a submarine which is guided to the surface of the water in order to launch an air rocket which pushes out the cap when it is launched. The cap includes pressed together cap segments for covering the exit opening of the mobile rocket launcher. The cap segments are shaped so that externally applied force components which are radial with respect to the longitudinal axis of the submarine act on the segments. The cap segments present a peripheral edge which cooperate with the peripheral edge of the exit opening to form a form locking plug-in connection with one another which is held together by external force components acting in the axial direction of the submarine. A tear-away, pressure resistant, slightly elastic and watertight, thin sheet adapted for attachment to the submarine is stretched over the cap segments when it is attached to the submarine.Type: GrantFiled: December 7, 1990Date of Patent: November 5, 1991Assignee: DMT Marinetechnik GmbHInventors: Marek Tegel, deceased, Dieter Wenzel
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Patent number: 4944316Abstract: In order to effect expansion of a shredded material, said material is impregnated with an inert organic liquid, which is subsequently vaporized. The major portion of the impregnation agent is removed by separation. In order to eliminate the residual amount of impregnation agent still contained in the material, the material is fed by conveyor belt (31) into a microwave chamber (35). The microwave chamber (35) is provided with microwave energy under continuous control conditions. The vapors are siphoned off and fed into a regenerator for recovery of the impregnation agent. Conditioned, pressurized air is directed at the material in the microwave chamber (35) through discharge nozzles (38) to cause the material to whirl up and become fluidized. The pressurized air serves as a carrier gas for the residual impregnation agent that is to be removed and may simultaneously be used for conditioning the tobacco.Type: GrantFiled: March 21, 1988Date of Patent: July 31, 1990Inventors: Oskar Stuhl, Klaus-Dieter Wenzel
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Patent number: 4821747Abstract: Apparatus to expand shredded material, the latter is impregnated with an inert organic liquid which is evaporated subsequently. The substantial portion of the impregnant is separated. To eliminate the residual amount of impregnate still contained in the material, the material is fed in heaps on a conveyor belt (36) to a microwave chamber (39). Upstream and downstream of the microwave chamber, one sluice each (38,40) is provided. The gates (43,44;49,51) of the sluice are synchronized with the drive of the conveyor belt (36). Microwave energy is supplied under continuous control to the microwave chamber (39). The vapors are removed by suction lines (47,55) and fed to a regenerator for recovery of the impregnant.Type: GrantFiled: March 27, 1987Date of Patent: April 18, 1989Assignee: R. J. Reynolds Tobacco CompanyInventors: Oskar Stuhl, Klaus-Dieter Wenzel
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Patent number: 4386692Abstract: Apparatus is provided for automatically loading a cylindrical workpiece into a machining system so that the workpiece is presented to the system in a prespecified orientation, the cylindrical surface of the workpiece containing a number of perforations, indentations or like apertures. The apparatus includes a feeding system for placing the workpiece in an initial position upon an upwardly inclined guideway, and further includes a pin, mounted in an advancement system, for alternatively contacting the cylindrical surface of the workpiece and engaging one of the apertures to urge the workpiece up through the guideway. The pin applies a frist frictional force to the workpiece when it is in contact with the cylindrical surface of the workpiece, and structure included in the guideway applies a second frictional force to the workpiece which interacts with the first frictional force to rotate the workpiece until the pin engages one of the apertures.Type: GrantFiled: June 26, 1981Date of Patent: June 7, 1983Assignee: The Cross CompanyInventors: Heinz-Dieter Wenzel, Melville Hanson, deceased