Patents by Inventor Paul-Wilhelm Braun

Paul-Wilhelm Braun 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).

  • Patent number: 7501614
    Abstract: A self-centering hub, more particularly for timing discs of encoders, stepping motors, spinning roller drives and the like, comprising a hub plate for fixing timing discs or code carriers and a slotted hub shank for being slipped on to the shaft end of an input or output unit.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: March 10, 2009
    Assignee: PWB-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Patent number: 7449676
    Abstract: An optical transducer device including an optical transducer element having preliminary and fine-adjustment openings, a printed circuit board, a motor shaft, a hub mounted to the motor shaft, and a sensor/emitter element that forms a sensor gap. The optical transducer element is positioned by, pre-positioning the shaft in the preliminary opening of the optical transducer element such that the peripheral edge is located outside the sensor gap, and laterally sliding the optical transducer element so that the motor shaft is positioned in the fine-adjustment opening of the optical transducer element such that the peripheral edge at least partially reaches into the sensor gap. The optical transducer element is then pressed onto the hub. Prior to positioning the optical transducer device, the circuit board is soldered to the device components, thereby protecting the optical transducer element from the negative effect of heat and solder residue.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: November 11, 2008
    Assignee: PWB-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Publication number: 20070075238
    Abstract: An optical transducer device including an optical transducer element having preliminary and fine-adjustment openings, a printed circuit board, a motor shaft, a hub mounted to the motor shaft, and a sensor/emitter element that forms a sensor gap. The optical transducer element is positioned by, pre-positioning the shaft in the preliminary opening of the optical transducer element such that the peripheral edge is located outside the sensor gap, and laterally sliding the optical transducer element so that the motor shaft is positioned in the fine-adjustment opening of the optical transducer element such that the peripheral edge at least partially reaches into the sensor gap. The optical transducer element is then pressed onto the hub. Prior to positioning the optical transducer device, the circuit board is soldered to the device components, thereby protecting the optical transducer element from the negative effect of heat and solder residue.
    Type: Application
    Filed: August 22, 2006
    Publication date: April 5, 2007
    Applicant: PWB-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Publication number: 20070069594
    Abstract: A self-centering hub, more particularly for timing discs of encoders, stepping motors, spinning roller drives and the like, comprising a hub plate for fixing timing discs or code carriers and a slotted hub shank for being slipped on to the shaft end of an input or output unit. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 29, 2007
    Inventor: PAUL-WILHELM BRAUN
  • Publication number: 20050002043
    Abstract: An optical transducer element in the form of a circular pulse raster disk or a pulse raster ruler mounted on a drive shaft, a tool carriage, a sliding stage, or a linearly movable position transducer has a peripheral edge running through a sensor gap of a transducer device for detecting at least one of a movement and a position. The optical transducer element is installed, centered and adjusted by: pre-positioning the optical transducer element in a preliminary position where the peripheral edge is located outside the sensor gap, and laterally sliding the optical transducer element into a centered fine-adjustment position where the peripheral edge reaches into said sensor gap.
    Type: Application
    Filed: May 24, 2004
    Publication date: January 6, 2005
    Applicant: PWB-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Patent number: 6822219
    Abstract: A timing device, such as a timing disk or a timing ruler is provided with a carrier having at least one code track of a group and overlapping therewith and at least one code marking, which is scanned by a sensor unit to produce signals. The code track or tracks have a different optical density in comparison to the first group, and the code markings within a code track overlap. Also disclosed is a positioning device which includes a timing disk or a timing ruler with a carrier having a first group of code markings in at least one code track. Here the code markings are scanned by at least one sensor unit for producing a signal and the signal processing device for converting the sensor signal into a control signal is connected after the sensor unit.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: November 23, 2004
    Assignee: PWP-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Patent number: 6660998
    Abstract: The invention relates to a timing device for positioning a machine part which is moved by an actuator and a control circuit in a straight or circular path inside a housing. A timing disk or a timing ruler is used as a reference point for the positioning, wherein the timing disk or timing ruler is arranged in a beam path of a light source-sensor unit. A beam mask made of a film material is disposed between a light source and the timing disk or the timing ruler. Spacer elements which face the timing disk or timing ruler, and a positioning and mounting plane for registration with a base plate are provided. Also provided are guide means for the positioning the beam mask inside the housing in front of the light source.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: December 9, 2003
    Assignee: PWB-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Patent number: 6462442
    Abstract: In the case of an encoder with a housing, which can be assembled, for flanging at the front end to a motor, which has a motor shaft protruding into the housing at at least one flange plane, the housing consists of a base plate with an inner part and an upper part of the housing, which can be fitted into one another for the assembly. On the inner part of the housing, bayonet segments are disposed, which engage corresponding recesses of the upper part of the housing and at which guiding surfaces are constructed, which form a sliding guide with corresponding counter surfaces at the upper part of the housing. In a roof surface of the upper part of the housing, a contact surface for adjusting a timing disk on the motor shaft is formed concentrically with the latter, which has a guiding shaft for the motor shaft with a borehole.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: October 8, 2002
    Assignee: PWB-Ruhlatec Industrieprodkte GmbH
    Inventors: Paul-Wilhelm Braun, Jens Hannemann
  • Patent number: 6437324
    Abstract: The present invention relates to a timing ruler or a timing disk for the exact positioning of working machines, servo-motors, encoders or the like. The device consists of a transparent material on which codings are arranged for scanning via optical sensors. The transparent material consists of a film supporting on one side a light-sensitive layer. The light-sensitive layer is provided via masks or photoplotters with codings for producing windows. The light-sensitive layer is covered with a transparent thermally stable and moisture-resistant material. The invention also relates to a process for the manufacture of such a timing ruler or such a timing disk.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: August 20, 2002
    Assignee: PWB - Ruhlatec Industrieprodukte GmbH
    Inventors: Paul Wilhelm Braun, Jochen Rückert
  • Patent number: 6384501
    Abstract: The invention relates to a self-centering timing disk hub with a timing disk support surface and a tubular hub sleeve, wherein the end of the hub sleeve can be pushed onto a motor shaft so as to provide in the hub sleeve a contact surface between the inner wall surface of the hub sleeve and the motor shaft. The outer wall surface of the hub sleeve has an at least approximately conical form, wherein the cone angle opens from the sleeve end to the timing disk support surface. The hub sleeve is slotted at least in the region of the motor shaft and a clamping element is movably arranged on the outer wall surface at the sleeve end. The invention also relates to a method for mounting a self-centering timing disk hub on a shaft, in particular a motor shaft of an encoder.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: May 7, 2002
    Assignee: PWB-Ruhlatec industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Publication number: 20010006314
    Abstract: The invention relates to a self-centering timing disk hub with a timing disk support surface and a tubular hub sleeve, wherein the end of the hub sleeve can be pushed onto a motor shaft so as to provide in the hub sleeve a contact surface between the inner wall surface of the hub sleeve and the motor shaft. The outer wall surface of the hub sleeve has an at least approximately conical form, wherein the cone angle opens from the sleeve end to the timing disk support surface. The hub sleeve is slotted at least in the region of the motor shaft and a clamping element is movably arranged on the outer wall surface at the sleeve end.
    Type: Application
    Filed: February 21, 2001
    Publication date: July 5, 2001
    Applicant: PWB-Ruhlatec Industrieproduckte GmbH
    Inventor: Paul-Wilhelm Braun
  • Patent number: 6225721
    Abstract: The invention relates to a self-centering timing disk hub with a timing disk support surface and a tubular hub sleeve, wherein the end of the hub sleeve can be pushed onto a motor shaft so as to provide in the hub sleeve a contact surface between the inner wall surface of the hub sleeve and the motor shaft. The outer wall surface of the hub sleeve has an at least approximately conical form, wherein the cone angle opens from the sleeve end to the timing disk support surface. The hub sleeve is slotted at least in the region of the motor shaft and a clamping element is movably arranged on the outer wall surface at the sleeve end. The invention also relates to a method for mounting a self-centering timing disk hub on a shaft, in particular a motor shaft of an encoder.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: May 1, 2001
    Assignee: PWB-Ruhlatec Industrieprodukte GmbH
    Inventor: Paul-Wilhelm Braun
  • Patent number: 5959295
    Abstract: A method and device for positioning non-linear machine parts using a timing element, particularly for machine parts that are in non-linear motion. The invention has a pair of sensors spaced apart for reading bar code marks on the timing unit when the timing unit is disposed on a circular or spherically-shaped carrier surface. Where long surfaces are involved, the ends of the timing unit or clock ruler are butt-jointed together and include a gap having a width deviating from the window openings of the bar code. Thus, the second sensor, which is connected to a second comparator, contains a test circuit for the code signals that are received. When the code signals do not correspond to the width of the bar code pitch, they are passed over to a second counter, and the first counter is disconnected from the line.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: September 28, 1999
    Inventor: Paul-Wilhelm Braun
  • Patent number: 5884407
    Abstract: A motion sensor has a carrier which rotatably supports a shaft. One or more eccentric weights are mounted on the shaft for rotation therewith. The carrier is supported by pins which are normal to the shaft and rotatable on bearings. One of the pins carries a disk with marks in the form of lines, and a sensing device for the marks is disposed adjacent the disk. This pin further carries a transmission component which cooperates with a transmission component on the shaft. When an object on which the motion sensor is mounted is tilted about the axis of the shaft, the weights are displaced from an equilibrium position. The weights return to the equilibrium position under the action of gravity thereby rotating the shaft which, in turn, rotates the disk via the transmission components. If the object is tilted about the axes of the pins, inertia causes rotation of the disk. The rotation of the disk is detected by the sensing device which can trigger an alarm.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: March 23, 1999
    Inventor: Paul-Wilhelm Braun
  • Patent number: 5734173
    Abstract: A method and device for positioning moving machine parts by using two sensors to detect the spacing of code markers on a code bearing part attached to the machine part and counting the number of code markers detected while accounting for uneven spacing between code markers which invariably occur when two code bearing parts are joined for use on a single machine part.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: March 31, 1998
    Inventor: Paul-Wilhelm Braun
  • Patent number: 5682818
    Abstract: A drive for a printer includes a printing roller which is driven by a step motor located at one axial end of the roller. A monitoring unit for the printing roller is disposed at the other axial end of the roller and comprises a belt which is mounted on two guide rollers. The rotational axes of the guide rollers are parallel to the rotational axis of the printing roller. The outer surface of the belt frictionally engages a portion of the peripheral surface of the printing roller so that the belt moves in response to rotation of the printing roller. One of the guide rollers for the belt drives a synchronizing disc having indicating elements which are sensed by a detector. The detector generates a synchronizing signal whenever an indicating element is detected, and the synchronizing signals are sent to a control unit. The control unit compares the synchronizing signals with reference signals and sends control signals to the motor when the synchronizing signals deviate from the reference signals.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: November 4, 1997
    Assignee: Ruhlatec Industrieprodukte GmbH
    Inventors: Paul-Wilhelm Braun, Herbert Lehmann
  • Patent number: 5672865
    Abstract: Disclosed are a timing device for controlling machine tools, handling equipment or other servomechanical elements and a method of manufacture. The timing device comprises a timing control element having a light sensitive layer including thereon a plurality of transparent windows and opaque windows arranged in a selected pattern, a reflective means disposed behind the light sensitive layer, and a carrier material disposed behind the reflective means. A transmitter emits light toward the timing control element. The device further comprise means for operating the timing control element to controllably select one of the transparent and opaque windows to be in the path of the emitted light. The emitted light propagates through one of the transparent windows, and is reflected by the reflective means only when the selected window is transparent. A receiver, disposed adjacent to the transmitter, generates an electrical signal in response to the reflected light.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: September 30, 1997
    Inventor: Paul-Wilhelm Braun
  • Patent number: 5508088
    Abstract: Disclosed are a timing device for controlling machine tools, handling equipment or other servomechanical elements and a method of manufacture. The timing device comprises a timing control element which includes a plurality of transparent windows and opaque windows arranged in a selected pattern and a reflective means disposed behind the transparent and opaque windows for reflecting light. A transmitter emits light toward the timing control element. The device further comprise means for operating the timing control element to controllably select one of the transparent and opaque windows to be in the path of the emitted light. The emitted light propagates through one of the transparent windows, and is reflected by the reflective means only when the selected window is transparent. A receiver, disposed adjacent to the transmitter, generates an electrical signal in response to the reflected light.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: April 16, 1996
    Inventor: Paul-Wilhelm Braun