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Coenen, DE
Berthold Coenen, Hueckelhoven DE
| Patent application number | Description | Published |
|---|---|---|
| 20100310407 | METHOD FOR PRODUCING SEMI-FINISHED PRODUCTS FROM NITI SHAPE MEMORY ALLOYS - Disclosed is a method for producing semi-finished products from a shape memory alloy, particularly an NiTi shape memory alloy, wherein a powder is first produced from a shape memory alloy, and subsequently the powder is divided into a coarse fraction and a fine fraction in a separating cut T. While the fine fraction is required, in particular, for the production of a first semi-finished product, employing the metal injection molding (MIM) method, the coarse fraction can be used for the production of a second semi-finished product, employing the hot isostatic pressing (HIP) method. The advantages of the invention can be summarized as follows. The MIM method for producing semi-finished products from a shape memory alloy is qualitatively improved and more cost-effective to implement if the coarse fraction that is typically obtained during powder production, but not used for the MIM process, can advantageously be supplied to a further process, in this case the HIP process. Due to the use of particularly fine powder, the semi-finished products produced by way of the MIM method have an advantageous, powder-metallurgical microstructure. In particular, the alloying elements are distributed particularly homogeneously in these semi-finished products, casting flaws or segregations do not usually occur, no anisotropy of the structure occurs as a result of the processing steps, and ternary alloys can be processed, which due to the mechanical properties thereof, cannot be processed by way of conventional forming methods. | 12-09-2010 |
Franz-Peter Coenen, Julich DE
| Patent application number | Description | Published |
|---|---|---|
| 20090009033 | Nanomanipulator Used for Analyzing or Machining Objects - The invention relates to a nanomanipulator that is used for analyzing or machining objects. Said nanomanipulator is equipped with several moving elements which can be adjusted to perform movements and support the object that is to be moved or an object holder in order to move at least one object relative to an analyzing position or machining position. Each of said moving elements is provided with one support area for the object that is to be moved or the object holder. The moving elements support at least one load-bearing plane in an axial direction of the nanomanipulator. The inventive nanomanipulator is characterized by moving elements comprising shearing piezo elements so as to move the load-bearing plane. | 01-08-2009 |
Heinrich Hubert Coenen, Grevenbroich DE
| Patent application number | Description | Published |
|---|---|---|
| 20100261913 | METHOD FOR PRODUCING PRECURSORS FOR L-3,4-DIHYDROXY-6- [18F] FLUOROPHENYL ALAINE AND 2- [18F] FLUORO-L-TYROSINE AND THE ALPHA-METHYLATED DERIVATIVES THEREOF, PRECURSOR, AND METHOD FOR PRODUCING L-3, 4DIHYDROXY-6- [18F] FLUOROPHENYLALANINE AND 2- [18F] FLUORO-L-TYROSINE AND THE ALPHA-METHYLATED DERIVATIVES FROM THE PRECURSOR - Disclosed is a method for producing precursors for L-3,4-dihydroxy-6-[ | 10-14-2010 |
Nils Hendrik Coenen, Bremen DE
| Patent application number | Description | Published |
|---|---|---|
| 20080286947 | Process for Separating Disk-Shaped Substrates with the Use of Adhesive Powers - The present invention relates to a device and a method for dividing up substrates ( | 11-20-2008 |
Norbert Coenen, Mönchengladbach DE
| Patent application number | Description | Published |
|---|---|---|
| 20090134727 | Method for Operating an Electromotive Drive - A method for operating an electromotive drive of a textile machine, comprising a contactlessly mounted rotor and catch bearings. The rotor rests on one catch bearing prior to initial operation, and is spaced therefrom by an air gap during stationary operation. A control device allows the rotor to be held in a force-free floating state during stationary operation. The method executes the following steps: (a) inputting an output signal from the control device for maintaining the force-free floating state during operation; (b) calculating the air gap by evaluating the output signal; (c) comparing the calculated value with predetermined limit values; and (d) deactuating the drive when the limit values are passed. The control device comprises a position sensor with at least one sensor coil, at least one actuator coil, a position controller and an integrator, at which the output signal is obtained to determine the air gap. | 05-28-2009 |
| 20090230897 | Electric motor - An electric motor for a textile machine can be operated as a generator if the supply voltage fails. The electric motor comprises a rotor configured as the motor armature and a motor phase control circuit comprising a plurality of semiconductor components wherein the electric motor can be short-circuited if a predeterminable limit value is passed during generator operation. The motor circuit causes the short-circuiting on passing the limit value by activating one or more of the semiconductor components. The multi-phase electric motor is used as the single drive of a rotor of the textile machine. wherein the semiconductor components of the phase control bridge. on passing a predeterminable limit value, contactlessly short-circuit the electric motor to brake the electric motor. | 09-17-2009 |
Norbert Coenen, Mönchengladbach DE
| Patent application number | Description | Published |
|---|---|---|
| 20090230897 | Electric motor - An electric motor for a textile machine can be operated as a generator if the supply voltage fails. The electric motor comprises a rotor configured as the motor armature and a motor phase control circuit comprising a plurality of semiconductor components wherein the electric motor can be short-circuited if a predeterminable limit value is passed during generator operation. The motor circuit causes the short-circuiting on passing the limit value by activating one or more of the semiconductor components. The multi-phase electric motor is used as the single drive of a rotor of the textile machine. wherein the semiconductor components of the phase control bridge. on passing a predeterminable limit value, contactlessly short-circuit the electric motor to brake the electric motor. | 09-17-2009 |
Paul Will Coenen, Titz-Rödingen DE
| Patent application number | Description | Published |
|---|---|---|
| 20090177079 | MEDICAL IMAGING SYSTEM HAVING AN INTEGRATED INJECTION DEVICE - Various embodiments of the present invention relate to an MRI system ( | 07-09-2009 |
Paul Will Coenen, Titz-Rödingen DE
| Patent application number | Description | Published |
|---|---|---|
| 20090177079 | MEDICAL IMAGING SYSTEM HAVING AN INTEGRATED INJECTION DEVICE - Various embodiments of the present invention relate to an MRI system ( | 07-09-2009 |
Paul Willi Coenen, Titz-Rodingen DE
| Patent application number | Description | Published |
|---|---|---|
| 20100042068 | HYDRAULIC INJECTION SYSTEM AND INJECTION METHOD - Disclosed is an injection system ( | 02-18-2010 |
Peter Coenen, Juelich DE
| Patent application number | Description | Published |
|---|---|---|
| 20110304241 | APPARATUS AND METHOD FOR ELECTROMECHANICAL POSITIONING - Provided is a device comprising at least one tubular piezo element for the electro mechanical positioning of a slider within the piezo element. The device has least one elastic friction means for exerting a normal force on the slider, the friction means being connected to the piezo element. A method for controlling the device is also disclosed. | 12-15-2011 |
Wolfgang Coenen, Grasberg DE
| Patent application number | Description | Published |
|---|---|---|
| 20080286947 | Process for Separating Disk-Shaped Substrates with the Use of Adhesive Powers - The present invention relates to a device and a method for dividing up substrates ( | 11-20-2008 |