LTN Servotechnik GmbH

Germany

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        Patent 15
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2024 1
2020 2
Before 2020 14
IPC Class
H01R 39/08 - Slip-rings 4
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature 3
G02B 6/36 - Mechanical coupling means 3
H01F 38/18 - Rotary transformers 3
H01R 39/00 - Rotary current collectors, distributors or interrupters 3
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NICE Class
09 - Scientific and electric apparatus and instruments 2
07 - Machines and machine tools 1
Status
Pending 1
Registered / In Force 16

1.

SLIP RING MODULE

      
Application Number 18471743
Status Pending
Filing Date 2023-09-21
First Publication Date 2024-03-28
Owner
  • DR. JOHANNES HEIDENHAIN GmbH (Germany)
  • LTN Servotechnik GmbH (Germany)
Inventor
  • Weber, Volker
  • Schoppel, Günther

Abstract

A slip ring module includes a plurality of electrically conductive elements and a dielectric support body. The material of the dielectric support body includes a ceramic material. The slip ring module is produced by an additive method such that each electrically conductive element is formed as a single piece, has a first region arranged as a slip ring, and a second region arranged as a connecting conductor. The dielectric support body has webs between which cavities are located.

IPC Classes  ?

2.

Slip ring and slip ring unit having a slip ring

      
Application Number 16831176
Grant Number 11165210
Status In Force
Filing Date 2020-03-26
First Publication Date 2020-10-01
Grant Date 2021-11-02
Owner LTN Servotechnik GmbH (Germany)
Inventor
  • Autenzeller, Peter
  • Strempel, Andreas

Abstract

A slip ring includes a first dielectric carrier body and a second dielectric carrier body, each carrier body having at least one shoulder extending circumferentially along a circle line. In addition, the slip ring includes conductor elements, which have an annular and closed configuration with respect to an axis, at least one conductor element, which is fixed in place on the shoulder of the first dielectric carrier body, and at least one conductor element, which is fixed in place on the shoulder of the second dielectric carrier body. The first dielectric carrier body is arranged at an offset from the second dielectric carrier body in the direction of the axis, so that the shoulder having the at least one conductor element of the first dielectric carrier body and the shoulder having the at least one conductor element of the second dielectric carrier body are located axially across from each other.

IPC Classes  ?

  • H01R 39/08 - Slip-rings
  • H01R 39/24 - Laminated contactsWire contacts, e.g. metallic brush, carbon fibres
  • H01R 39/34 - Connections of conductor to slip-ring

3.

Device for transmitting optical signals between two rotatable subassemblies

      
Application Number 16592306
Grant Number 10969549
Status In Force
Filing Date 2019-10-03
First Publication Date 2020-04-09
Grant Date 2021-04-06
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor Autenzeller, Peter

Abstract

In a device for transmitting optical signals between a first subassembly and a second subassembly, which rotatable about an axis relative to the first subassembly. The first subassembly includes a first optical waveguide, and the second subassembly includes a second optical waveguide. The device includes a first sleeve enclosing the first optical waveguide, a first bushing enclosing the first sleeve, a housing, a second sleeve enclosing the second optical waveguide, a second bushing enclosing the second sleeve. Furthermore, the device includes a bearing arrangement, including at least one first ring and rolling elements, rollingly supported on a conical surface. The housing encloses the first bushing, the second bushing, and the bearing arrangement, the bearing arrangement is axially displaceable relative to the housing, and the second bushing is axially preloaded with respect to the first bushing via the bearing arrangement. The rolling elements are radially preloaded with respect to the housing by their support on the conical surface.

IPC Classes  ?

4.

Device for transmitting optical signals between two rotatable sub-assemblies

      
Application Number 16409465
Grant Number 10895693
Status In Force
Filing Date 2019-05-10
First Publication Date 2019-11-21
Grant Date 2021-01-19
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor
  • Autenzeller, Peter
  • Steinigans, Andreas

Abstract

In a device for transmitting optical signals between a first sub-assembly having a first lens, a first bearing ring, and a first clamping sleeve, which has a conical surface, and a second structural unit having a second lens, a second bearing ring, a second body, a second clamping sleeve, which has a conical surface, and a clamping device, the first bearing ring and the second bearing ring are associated with a bearing by which the first sub-assembly and the second sub-assembly are connected to each other rotatably about an axis. Arranged in a centered manner in relation to the axis are: the first lens on the first bearing ring with the aid of the first clamping sleeve through a first conical connection, the second lens on the second body with the aid of the second clamping sleeve through a second conical connection, and the second body on the second bearing ring with the aid of a clamping device by a third conical connection.

IPC Classes  ?

  • G02B 6/36 - Mechanical coupling means
  • F16C 19/08 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
  • F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls

5.

Slip ring and slip ring unit having a slip ring

      
Application Number 15211350
Grant Number 09806482
Status In Force
Filing Date 2016-07-15
First Publication Date 2017-01-19
Grant Date 2017-10-31
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor
  • Angerpointner, Ludwig
  • Autenzeller, Peter

Abstract

A slip ring includes a dielectric carrier body having a circumferential lateral surface and radially oriented feed-through leads, a first conductive element, and a second conductive element. In a first section, the conductive elements extend in parallel at an axial offset on the lateral surface in the circumferential direction, and in a second section, they extend in the feed-through leads with a radial directional component. The first sections extend in the circumferential direction across a first angular dimension of less than 360°, so that a discontinuity is present along the circumferential direction of the conductive elements in a second angular dimension. The feed-through leads are arranged such that the second angular dimension of the first conductive element is situated at an offset from the second angular dimension of the second conductive element in the circumferential direction, the first and the second conductive elements being electrically connected to each other.

IPC Classes  ?

6.

Resolver

      
Application Number 14602022
Grant Number 09709378
Status In Force
Filing Date 2015-01-21
First Publication Date 2015-08-27
Grant Date 2017-07-18
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor
  • Logé, Hans
  • Hick, Manfred
  • Angerpointner, Ludwig

Abstract

A resolver includes a first assembly having transmitter windings and a first winding of a first transformer. The resolver also includes a second assembly having receiver windings, a first winding of a second transformer, and a first winding of a third transformer. A third assembly of the resolver includes a second winding of the first transformer, a second winding of the second transformer, and a second winding of the third transformer. The three assemblies are rotatable relative to each other about an axis. The windings of the first transformer, the windings of the second transformer, the windings of the third transformer, the transmitter windings, and the receiver windings are arranged opposite each other in each case, separated by a radial gap.

IPC Classes  ?

  • H01F 38/18 - Rotary transformers
  • G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
  • H02K 24/00 - Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
  • G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
  • G08C 19/46 - Electric signal transmission systems using dynamo-electric devices of which both rotor and stator carry windings

7.

Brush unit and slip-ring arrangement having a brush unit

      
Application Number 14597245
Grant Number 09768573
Status In Force
Filing Date 2015-01-15
First Publication Date 2015-08-06
Grant Date 2017-09-19
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor Bichler, Bernhard

Abstract

A brush unit for electrically contacting a curved surface of a slip ring includes a brush holder and a resilient brush. The resilient brush is mounted to the brush holder in such a way that the brush is resiliently preloaded between two points at which the brush is supported against the brush holder and exhibits a camber. The brush is in contact with the brush holder between the two points.

IPC Classes  ?

8.

Device for transmitting signals between two rotatable sub-assemblies

      
Application Number 14180839
Grant Number 09673892
Status In Force
Filing Date 2014-02-14
First Publication Date 2014-08-14
Grant Date 2017-06-06
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor
  • Angerpointner, Ludwig
  • Autenzeller, Peter

Abstract

In a device for transmitting signals on two channels between two sub-assemblies rotatable relative to each other about an axis, a photodetector and a light source are connected via connecting lines to a receiver circuit and transmitter circuit. At least one of the connecting lines has a section extending with a radial directional component. The beam path of one channel extends with an axial directional component radially outside relative to the beam path of the optical signal of the other channel, past the section of the at least one connecting line.

IPC Classes  ?

  • G02B 6/36 - Mechanical coupling means
  • H04B 10/00 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
  • H04B 10/80 - Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups , e.g. optical power feeding or optical transmission through water

9.

Slip-ring unit

      
Application Number 13471411
Grant Number 08616897
Status In Force
Filing Date 2012-05-14
First Publication Date 2012-11-15
Grant Date 2013-12-31
Owner LTN Servotechnik GmbH (Germany)
Inventor Angerpointner, Ludwig

Abstract

A slip-ring unit includes a first and a second group of components which are arranged in a manner allowing rotation relative to each other about an axis. The first group of components includes a slip-ring brush which is secured to a holder that is mounted between two components which are offset relative to each other in the direction of the axis. The second group of components includes at least one slip ring. The holder and at least one of the components each have an effective area by which a form-locking connection is produced between the holder and the at least one component. Forces having a directional component parallel to the axis are transmittable by the form-locking connection.

IPC Classes  ?

  • H01R 39/00 - Rotary current collectors, distributors or interrupters

10.

SLIP RING UNIT

      
Document Number 02759587
Status In Force
Filing Date 2011-11-22
Open to Public Date 2012-05-29
Grant Date 2016-02-23
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor Angerpointner, Ludwig

Abstract

The invention relates to a slip ring unit comprising a first and a second component group (1, 2), wherein the first component group (1) comprises a holder (1.1) on which a brush element (1.2, 1.2') is secured at two bearing positions (Y, Z). The second component group (2) has a closed peripheral slip ring (2.2). The holder (1.1) is arranged at an axial distance (a) from the slip ring (2.2), and the slip ring (2.2) is contacted by the brush element (1.2; 1.2') at a contact point (X). The slip ring unit is configured so that the contact point (X) is arranged between the bearing positions (Y, Z) along the course of the brush element (1.2; 1.2') and the contact point (X) is arranged at a radial offset (d) from a line (Y, Z) connecting the bearing positions (yz).

IPC Classes  ?

  • H01R 39/10 - Slip-rings other than with external cylindrical contact surface, e.g. flat slip-rings

11.

Slip-ring unit

      
Application Number 13124326
Grant Number 08348677
Status In Force
Filing Date 2009-09-10
First Publication Date 2012-05-24
Grant Date 2013-01-08
Owner
  • LTN Servotechnik GmbH (Germany)
  • MD Elektronik GmbH (Germany)
Inventor
  • Angerpointner, Ludwig
  • Friese, Norbert

Abstract

In a slip-ring unit for electrically connecting two components that are rotatable relative to each other, one component is arranged as a first cable, which has a core and a shield. The slip-ring unit includes first, second and third brush elements as well as first, second and third slip bodies. The first slip body has an opening extending through it axially, through which a first cable extends for transmitting the voltage applied on the core. The second brush element is additionally disposed at a radial offset with respect to the third brush element.

IPC Classes  ?

  • H01R 39/00 - Rotary current collectors, distributors or interrupters

12.

Resolver

      
Application Number 13318610
Grant Number 09013178
Status In Force
Filing Date 2010-01-28
First Publication Date 2012-03-15
Grant Date 2015-04-21
Owner LTN Servotechnik GmbH (Germany)
Inventor
  • Logé, Hans
  • Hitzer, Andreas

Abstract

In a resolver for determining the relative angular position between two subassemblies, each subassembly includes a winding, the winding being situated inside a housing made up of two housing shells. The housing shells have tabs which are oriented with an axial directional component and joined in interlocking manner with axial overlap at a mutual offset in the circumferential direction.

IPC Classes  ?

  • G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
  • G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
  • G01P 3/487 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
  • H01F 38/18 - Rotary transformers

13.

RESOLVER

      
Application Number EP2010000510
Publication Number 2010/127728
Status In Force
Filing Date 2010-01-28
Publication Date 2010-11-11
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor
  • Logé, Hans
  • Hitzer, Andreas

Abstract

The invention relates to a resolver for determining the relative angular position between two components (1; 2). Each of the components (1; 2) comprises a winding (1.1; 2.1), wherein the winding (1.1; 2.1) is disposed in a housing (1.2; 2.2) comprising two housing shells (1.21, 1.22; 2.21, 2.22). The housing shells (1.21, 1.22; 2.21, 2.22) comprise tabs (1.211, 1.221; 2.211, 2.221) oriented to axial alignment components and are joined offset to one another in the circumferential direction and overlapping and engaging with one another in the axial direction.

IPC Classes  ?

  • G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
  • H01F 38/18 - Rotary transformers

14.

RESOLVER COMPONENT, AND RESOLVER EQUIPPED THEREWITH

      
Application Number EP2009007747
Publication Number 2010/066317
Status In Force
Filing Date 2009-10-29
Publication Date 2010-06-17
Owner LTN SERVOTECHNIK GMBH (Germany)
Inventor Angerpointer, Ludwig

Abstract

The invention relates to a resolver component and a resolver, comprising a first element (1) that has windings (1.4), a first group (1.1) of terminal posts (1.1.1 to 1.1.12), and a second group (1.2) of at least one couple of terminal posts (1.2.1, 1.2.3; 1.2.2, 1.2.4) which are in electrical contact with each other. The windings (1.4) are in electrical contact with terminal posts (1.11 to 1.1.12) of the first group (1.1). The resolver component further comprises a second element (2) that has another winding (2.4) and at least one terminal post (2.31, 2.32). Said other winding (2.4) is in electrical contact with the terminal post (2.31, 2.32) of the second element (2). The electrical line (3, 4) is in contact with a terminal post (1.21, 1.22) of the couple from the second group (1.2). The other terminal post (1.23, 1.24) of said couple is electrically connected to a terminal post (2.31, 2.32) of the second element (2).

IPC Classes  ?

  • G01D 5/22 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
  • H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines

15.

SLIP RING UNIT

      
Application Number EP2009006564
Publication Number 2010/043290
Status In Force
Filing Date 2009-09-10
Publication Date 2010-04-22
Owner
  • LTN SERVOTECHNIK GMBH (Germany)
  • MD ELEKTRONIK GMBH (Germany)
Inventor
  • Angerpointner, Ludwig
  • Friese, Norbert

Abstract

The invention relates to a slip ring unit for the electric connection of two structural elements (11, 12; 21, 22) which can be rotated relative to each other. A structural element is designed as a first cable (21) which has a core (21.1) and a shield (21.3). The slip ring unit comprises first, second and third brush elements (1.1, 1.2, 1.3) and first, second and third slip bodies (2.1, 2.2, 2.3). The first slip body (2.1) has a an axially continuous recess through which a first cable (21) is guided for transmitting the voltage applied to the core (21.1). Moreover, the second brush element (1.2) is arranged with a radial off-set (X) relative to the third brush element (1.3).

IPC Classes  ?

  • H01R 39/64 - Devices for uninterrupted current collection

16.

LTN

      
Serial Number 75597369
Status Registered
Filing Date 1998-12-01
Registration Date 2001-07-31
Owner LTN SERVOTECHNIK GMBH (Germany)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

[Longitudinal and] angle measuring apparatuses, namely, [linear,] rotary and angle encoders; precision scales for longitudinal and angle measuring apparatuses; rotational sensors and resolvers in the nature of rotary encoders and angle encoders as part of machines, especially for measuring purposes at electrical drives; slip rings used in electrical motors; and parts therefor

17.

LTN

      
Application Number 000984906
Status Registered
Filing Date 1998-11-12
Registration Date 2000-08-01
Owner LTN Servotechnik GmbH (Germany)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments

Goods & Services

Rotary transducers and resolvers as parts of machines, in particular for carrying out measurements on electric drives; sliprings; parts for the aforesaid goods. Devices for measuring length and angle; precision gauges for devices for measuring length and angle; parts for the aforesaid goods.