Patents by Inventor Volker Ludwig
Volker Ludwig 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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Publication number: 20220160406Abstract: A set for dorsal spinal fusion comprises a detachable handle made of plastic material and a screwdriver that can be coupled to the removable handle without the use of tools. A receptacle of the handle for the screwdriver is made of plastic material. Also, a handle is disclosed, which in particular comprises a ratchet mechanism.Type: ApplicationFiled: April 8, 2020Publication date: May 26, 2022Applicants: DREAMED Medical Trade UG, LuMediXx Solution UGInventors: Volker LUDWIG, Christian RĂ–BLING
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Patent number: 9822839Abstract: A hydraulically damping rubber bearing has a substantially hollow-cylindrical inner portion and an outer portion disposed with a predetermined spacing relative to the inner portion. A resilient connection portion is disposed between the inner portion and the outer portion and connects the outer portion to the inner portion. The resilient connection portion has a first hydraulic damping circuit with at least two first fluid chambers which are in fluid communication with each other by means of a first flow connection. The first hydraulic damping circuit has a damping action in a predetermined direction. A second hydraulic damping circuit provides a damping action in the same predetermined direction as the first hydraulic damping circuit.Type: GrantFiled: April 30, 2014Date of Patent: November 21, 2017Assignees: BOGE ELASTMETALL GMBH, AUDI AGInventors: Volker Ludwig, Stefan Loheide, Thomas Conrad, Wolfgang Unger
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Patent number: 9599156Abstract: A sleeve bearing for being received in an outer sleeve includes an inner part which extends in the axial direction, a bearing body, and a cage which encloses the bearing body circumferentially. The bearing body encloses the inner part, is made from an elastic material, and has at least two chambers. The cage is formed from at least two cage parts, the spacing of which can be varied in the radial direction. A sealed joint area is provided between the cage parts.Type: GrantFiled: July 1, 2013Date of Patent: March 21, 2017Assignees: BOGE ELASTMETALL GMBH, AUDI AGInventors: Volker Ludwig, Stefan Loheide, Thomas Conrad
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Publication number: 20160195155Abstract: A hydraulically damping rubber bearing has a substantially hollow-cylindrical inner portion and an outer portion disposed with a predetermined spacing relative to the inner portion. A resilient connection portion is disposed between the inner portion and the outer portion and connects the outer portion to the inner portion. The resilient connection portion has a first hydraulic damping circuit with at least two first fluid chambers which are in fluid communication with each other by means of a first flow connection. The first hydraulic damping circuit has a damping action in a predetermined direction. A second hydraulic damping circuit provides a damping action in the same predetermined direction as the first hydraulic damping circuit.Type: ApplicationFiled: April 30, 2014Publication date: July 7, 2016Applicants: BOGE Elastmetall GmbH, Audi AGInventors: Volker Ludwig, Stefan Loheide, Thomas Conrad, Wolfgang Unger
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Publication number: 20150226258Abstract: A sleeve bearing for being received in an outer sleeve includes an inner part which extends in the axial direction, a bearing body, and a cage which encloses the bearing body circumferentially. The bearing body encloses the inner part, is made from an elastic material, and has at least two chambers. The cage is formed from at least two cage parts, the spacing of which can be varied in the radial direction. A sealed joint area is provided between the cage parts.Type: ApplicationFiled: July 1, 2013Publication date: August 13, 2015Inventors: Volker Ludwig, Stefan Loheide, Thomas Conrad
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Patent number: 6302287Abstract: The present invention relates to closure systems (10) for a container for pourable material in particular for pourable material for human consumption such as beverages. In particular the closure system (10)relates to a beverage bottle having a screw cap closure system. The closure system comprises a closure frame (20) providing the physical stability and and protection of the closure system (10) and a sealing means (30) which is removably joined to the closure frame (20) to provide appropriate sealing of the container. The present invention allows to recycle or reuse the closure frame (20) and to recycle the sealing means (30).Type: GrantFiled: May 21, 1999Date of Patent: October 16, 2001Assignee: The Procter & Gamble CompanyInventor: Volker Ludwig Heiner
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Patent number: 6095357Abstract: The present invention relates to closure systems (10) for a container for pourable material in particular for pourable material for human consumption such as beverages. The closure system (10) comprises a closure frame (20) and a sealing means (30) which is removably joined to the closure frame to provide appropriate sealing of the container. The present invention allows to reuse the closure frame and provides a temper proof indication.Type: GrantFiled: May 17, 1999Date of Patent: August 1, 2000Assignee: The Procter & Gamble CompanyInventors: Volker Ludwig Heiner, Detlef Johannes Gustav Muller
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Patent number: 5360481Abstract: In the case of an apparatus for coating a substrate with a substance, in particular a film with an adhesive, the substance is applied by means of a feeding head (4) through perforations (5) of a template (2) to the substrate in interaction with a backing roll (3) or the like within a coating nip (8). In this arrangement, the backing roll (3) has a screening cover (7) with holes (12). A radially aligned suction stream is generated in the backing roll in a region in and/or after the coating nip (8).Type: GrantFiled: December 9, 1992Date of Patent: November 1, 1994Inventor: Volker Ludwig
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Patent number: 5196063Abstract: A method and device for applying liquid, pasty or plastic substances, in particular thermoplastics, through perforations of a cylinder, belt or the like to a substrate, in particular a textile fabric, wherein the belt or the like encloses an interior space which is evacuated, preferably continuously, during the coating operation.Type: GrantFiled: June 26, 1991Date of Patent: March 23, 1993Inventor: Volker Ludwig
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Patent number: 5122219Abstract: In a method of applying fluid, pasty or plastic substances, especially thermoplastics, to a substrate, the substance is melted, heated and applied via an outlet slit of a perforated cylinder to the substrate, the substrate then being lifted off from the cylinder. Provision is made here for the cylinder (3) to be connected to an energy source (17) and to be designed itself as a heat source for the substance.Type: GrantFiled: February 9, 1990Date of Patent: June 16, 1992Inventor: Volker Ludwig
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Patent number: 5027743Abstract: In an apparatus for applying liquid, pasty or plastic substances, particularly thermoplastic substances, to a substrate with a device for melting the substances and a feed head for transferring the melted substances to the substrate via at least one nozzle orifice, the device for melting the substances comprises a melting container and a pressure container connected thereto. In order to facilitate melting, heat exchanger surfaces, particularly heat exchanger tubes are arranged in the melting container.Type: GrantFiled: November 2, 1989Date of Patent: July 2, 1991Inventor: Volker Ludwig
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Patent number: 4999212Abstract: Apparatus and process for applying a flowable substance to a substrate. A perforated cylinder feeds the flowable substance to the substrate with a counter-pressure roll adjacent. A lift-off roll assists in drawing the substrate off the cylinder in response to the degree of adhesion between substrate and cylinder. The distance between the axes of rotation of the counter-pressure roll and cylinder is less than the sum of radii of the roll and cylinder.Type: GrantFiled: July 28, 1989Date of Patent: March 12, 1991Inventor: Volker Ludwig
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Patent number: 4938835Abstract: In an apparatus for applying liquid, pasty or plastic substances, particularly thermoplastic substances, to a substrate with a device for melting the substances and a feed head for transferring the melted substances to the substrate via at least one nozzle orifice, the device for melting the substances comprises a melting container and a pressure container connected thereto. In order to facilitate melting, heat exchanger surfaces, particularly heat exchanger tubes are arranged in the melting container.Type: GrantFiled: November 1, 1988Date of Patent: July 3, 1990Inventor: Volker Ludwig
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Patent number: 4376988Abstract: The invention concerns a method and circuitry for refreshing data stored in a dynamic MOS memory. The refreshing processes proceed independently of data handling in the memory. The duration between successive two refreshing processes is selected such that it is smaller than a predetermined maximum duration by a duration which is associated with a memory process. When during a refreshing process, a reading process is to be executed, the reading process is delayed by means of inserted holding cycles. During execution of memory processes, the execution of a refreshing process is delayed until the memory process is concluded. In the case of a simultaneous appearance of signals which precede a refreshing process and a memory process, a decision unit determines a sequence of execution of the processes.Type: GrantFiled: February 25, 1981Date of Patent: March 15, 1983Assignee: Siemens AktiengesellschaftInventors: Volker Ludwig, Juergen Heitmann
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Patent number: 4316057Abstract: Circuit arrangement for the automatic, adaptive, temporal distortion correction of the ringings of a multi-stage base band signal comprises a controlled-gain amplifier to which the distorted base band signal is supplied. A correction signal device generates a correction signal, and a summer generates the distortion corrected base band signal by adding of the correction signal and the signal emitted by the controlled-gain amplifier. The distortion corrected base band signal is supplied to a sample-and-hold circuit and its output signal, after rectification and smoothing, is compared to a reference value signal. The level of the distorted base band signal is controlled with the output signal of the comparator with the assistance of the controlled-gain amplifier.Type: GrantFiled: July 4, 1980Date of Patent: February 16, 1982Assignee: Siemens AktiengesellschaftInventor: Volker Ludwig
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Patent number: 4063235Abstract: A circuit arrangement for reshaping a pulse edge data signal whose pulse edges signal binary values of data into an amplitude data signal whose amplitudes signal the binary values of the data includes a pulse generator to produce a timing signal having a period duration which is equal to the duration of the individual binary values. A pulse shaper is fed with the pulse edge data signal and emits a rectangular signal whose rectangular pulses are of short duration and coincide with the pulse edges of the pulse edge data signal. A first bistable trigger stage and a second bistable trigger stage are provided, each of which has a setting input, a data input, a pulse train input and an output, the output emitting signals having binary values which signal the stable states of the two trigger stages. The setting input of the first trigger stage is supplied with the rectangular signal and the pulse train input of the first trigger stage is fed with a timing signal.Type: GrantFiled: October 29, 1976Date of Patent: December 13, 1977Assignee: Siemens AktiengesellschaftInventor: Volker Ludwig
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Patent number: 4056791Abstract: Apparatus for correcting attenuation distortion in low frequency cable carrying a base-band signal from a transmitter to a receiver is described. A measuring device produces an indicating signal having a value dependent on the peak value of the base-band signal appearing in the region of the receiver. The receiver contains an amplifier, the gain of which is controlled by a RC element. The indicating signal is used to regulate the gain of the amplifier so that the cable and the amplifier together produce a substantially constant attenuation characteristic within a given low frequency range.Type: GrantFiled: October 30, 1975Date of Patent: November 1, 1977Assignee: Siemens AktiengesellschaftInventors: Reiner Lohmann, Volker Ludwig