Patents by Inventor Bernhard Stehlin
Bernhard Stehlin 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: 9702342Abstract: The invention relates to a wind turbine (1) with a pitch drive (3) for rotor blade adjustment, whereby the drive regulation (31) of the pitch drive (3) responds to disturbance torques (SM) during operation of the wind turbine (1) so as to have an equalizing effect, and the invention also relates to a corresponding method for the drive regulation (31). For this purpose, the wind turbine (1) comprises at least one load sensor (4) that is arranged in the vicinity of the pitch drive (3) in order to determine the mechanical load being exerted on the drive mechanism (A) due to a disturbance torque (SM), and said load sensor is also provided in order to emit a sensor signal (SS) corresponding to the mechanical load, and the drive regulation (31) comprises a feedback means (311) for the feedback (R) of an evaluated torque signal (BDS) on the basis of the sensor signal (SS).Type: GrantFiled: June 20, 2013Date of Patent: July 11, 2017Assignees: Moog Unna GmbH, Moog GmbHInventors: Bernhard Stehlin, Mirko Breitholz, Tobias Rösmann
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Publication number: 20150361956Abstract: The invention relates to a wind turbine (1) with a pitch drive (3) for rotor blade adjustment, whereby the drive regulation (31) of the pitch drive (3) responds to disturbance torques (SM) during operation of the wind turbine (1) so as to have an equalizing effect, and the invention also relates to a corresponding method for the drive regulation (31). For this purpose, the wind turbine (1) comprises at least one load sensor (4) that is arranged in the vicinity of the pitch drive (3) in order to determine the mechanical load being exerted on the drive mechanism (A) due to a disturbance torque (SM), and said load sensor is also provided in order to emit a sensor signal (SS) corresponding to the mechanical load, and the drive regulation (31) comprises a feedback means (311) for the feedback (R) of an evaluated torque signal (BDS) on the basis of the sensor signal (SS).Type: ApplicationFiled: June 20, 2013Publication date: December 17, 2015Inventors: Bernhard Stehlin, Mirko Breitholz, Tobias Rösmann
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Patent number: 7597041Abstract: The present invention relates generally to a weapon having an eccentrically-pivoted barrel (1) that is mounted on a movable base (2), and to a method of elevating and stabilizing such a barrel. A drive mechanism (3) acts between the barrel and the base to permit and enable the elevation of the barrel relative to the base to be selectively changed. A compensation device acts between the barrel and base to compensate for the unbalance of the barrel. The compensation device includes a gyroscope (13) mounted on the barrel and arranged to provide an output signal, a set point generator (12), a closed-loop control device (10) and an actuating element (16). The actual position of the barrel is sensed by the gyroscope, which supplies its output signal to the set point generator. The set point generator produces a set force value as a function of the gyroscope output signal.Type: GrantFiled: December 12, 2006Date of Patent: October 6, 2009Assignee: Moog GmbHInventors: Stefan Gerstadt, Roland Kirchberger, Bernhard Stehlin
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Publication number: 20070144338Abstract: The present invention relates generally to a weapon having an eccentrically-pivoted barrel (1) that is mounted on a movable base (2), and to a method of elevating and stabilizing such a barrel. A drive mechanism (3) acts between the barrel and the base to permit and enable the elevation of the barrel relative to the base to be selectively changed. A compensation device acts between the barrel and base to compensate for the unbalance of the barrel. The compensation device includes a gyroscope (13) mounted on the barrel and arranged to provide an output signal, a set point generator (12), a closed-loop control device (10) and an actuating element (16). The actual position of the barrel is sensed by the gyroscope, which supplies its output signal to the set point generator. The set point generator produces a set force value as a function of the gyroscope output signal.Type: ApplicationFiled: December 12, 2006Publication date: June 28, 2007Inventors: Stefan Gerstadt, Roland Kirchberger, Bernhard Stehlin
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Patent number: 7143681Abstract: The invention relates to a firing direction system for adjusting a rocket launcher, and includes a drive motor (9) that is connected via a safety brake (2-8) with a drive shaft (1) for adjusting the rocket launcher, whereby a rotation of the drive shaft (1) in a first direction effects a raising of the rocket launcher, and a rotation in the opposite direction effects a lowering of the rocket launcher, whereby the safety brake prevents a back-driving torque of the rocket launcher from effecting a rotation of the drive shaft (1) in the opposite direction. In addition, an electric motor (11) is disposed on the drive shaft (1) and is controlled is such a way that upon a rotation of the drive shaft in the first direction, the electric motor effects an additional torque of the drive shaft (1) in the first direction, and upon rotation of the drive shaft in the opposite direction effects a recovery of energy.Type: GrantFiled: January 28, 2003Date of Patent: December 5, 2006Assignee: Krauss-Maffei Wegmann GmbH & Co. KGInventors: Wilfried Hartmann, Timo Rinke, Bernhard Stehlin, Andreas Noll
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Publication number: 20040200345Abstract: The invention relates to a firing direction system for adjusting a rocket launcher, and includes a drive motor (9) that is connected via a safety brake (2-8) with a drive shaft (1) for adjusting the rocket launcher, whereby a rotation of the drive shaft (1) in a first direction effects a raising of the rocket launcher, and a rotation in the opposite direction effects a lowering of the rocket launcher, whereby the safety brake prevents a back-driving torque of the rocket launcher from effecting a rotation of the drive shaft (1) in the opposite direction. In addition, an electric motor (11) is disposed on the drive shaft (1) and is controlled is such a way that upon a rotation of the drive shaft in the first direction, the electric motor effects an additional torque of the drive shaft (1) in the first direction, and upon rotation of the drive shaft in the opposite direction effects a recovery of energy.Type: ApplicationFiled: January 9, 2004Publication date: October 14, 2004Inventors: Wilfried Hartmann, Timo Rinke, Bernhard Stehlin, Andreas Noll
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Patent number: 4444089Abstract: A stabilizing and aiming drive for the turret (2) of a vehicle (1) comprises brake surfaces at revolving rings (6,7) which are supported for rotation at the vehicle superstructure or at the turret. The revolving rings (6,7) are driven in opposite directions by an electric motor (20) acting through driven pinions (23,24), and they carry brake surfaces (10,11). These brake surfaces face the friction linings (12,13) which are adapted to be acted upon by magnetic structural units (16,17) provided at the turret or vehicle superstructure for engagement with the brake surfaces, in order to thereby apply controlled stabilizing and aiming moments on the turret.Type: GrantFiled: February 26, 1982Date of Patent: April 24, 1984Assignee: Dr.-Ing. Ludwig PietzschInventors: Ludwig Pietzsch, Bernhard Stehlin
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Patent number: 4353446Abstract: Method and apparatus for positioning and altitude-stabilizing an inert mass slewable on a movable base in at least one axis are disclosed. Oppositely rotatable driving parts are supported on either the base or the mass, and the driven parts on the other of the base or mass are friction coupled to the driving parts under the control of one or more control devices. The control devices are controllable electromagnetic clutches or brakes, and control of the magnetic field is achieved by the hyperexcitation through feedback and intensification of the measured magnetic field strength and/or the control torque.Type: GrantFiled: November 1, 1977Date of Patent: October 12, 1982Assignee: Ludwig PietzschInventors: Joachim H. Wilken, Bernhard Stehlin, Volker Pathe, Manfred Wamser, Ludwig Pietzsch
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Patent number: 4144826Abstract: The sewing machine includes respective setting members for adjusting the overstitch width and the stitch length, with the setting members being adjusted by an actuating mechanism responsive to control signals of a program control system, the control signals corresponding to the stitches to be made. The power for driving the actuating mechanism is derived from the continuously operating main shaft of the sewing machine, through a clutch or clutches whose moment to be transmitted is controllable, such as electromagnetic clutches. In one embodiment of the invention, a single electromagnetic clutch is provided for each setting member and includes a first clutch disk connected to the respective setting member to rotate therewith and a second clutch disk secured to a shaft continuously rotated by the main shaft of the machine. A spiral spring is provided to act to rotate the respective setting member in a direction opposite to the direction of rotation thereof by the associated clutch.Type: GrantFiled: October 14, 1977Date of Patent: March 20, 1979Assignee: Dorina Nahmaschinen GmbHInventors: Bernhard Stehlin, Joachim Wilken