Patents by Inventor Jens Berthold

Jens Berthold 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: 11611270
    Abstract: A method for trickle impregnation of a stator or armature of an electric machine with a synthetic resin curing under temperature increase comprises heating the stator or the armature from an initial temperature to a trickle temperature range of the synthetic resin; keeping constant the temperature in the trickle temperature range and introducing the synthetic resin into the stator or the armature; heating the stator or the armature to a curing temperature range; keeping constant the temperature of the stator or the armature in the curing temperature range and setting and curing the synthetic resin to a duroplast; and cooling down the stator or the armature. The trickle temperature range has lower temperatures than the curing temperature range. The method includes inductively heating the stator or the armature. The stator or the armature may be disposed in an impregnation device.
    Type: Grant
    Filed: February 18, 2018
    Date of Patent: March 21, 2023
    Assignee: GEHRING TECHNOLOGIES GMBH + CO. KG
    Inventors: Jens Berthold, Stefan Schneider, Richard A. Rasp
  • Patent number: 11404947
    Abstract: The invention relates to an impregnation device (1) for trickle impregnation of a stator (2) or armature of an electric machine with a synthetic resin (5) curing under temperature increase, comprising a holding device (32) which can be tilted vertically relative to the horizontal (16) and to which a drive motor (12) is attached as a rotary drive for the stator (2) or the armature, a drive shaft (58) operatively connected to the drive motor (12), a clamping device (34) which is non-rotatably connected to the drive shaft (58) and capable of detachably connecting the stator (2) or the armature to the drive shaft (58), a trickle device (24) capable of applying a synthetic resin (5) onto at least one axial end of the windings (4) of the stator (2) or the armature, and a heating device capable of heating the windings (4) of the stator (2) or the armature to a trickle temperature and to a comparatively higher curing temperature.
    Type: Grant
    Filed: February 18, 2018
    Date of Patent: August 2, 2022
    Assignee: GEHRING E-TECH GMBH
    Inventors: Jens Berthold, Stefan Schneider, Richard A. Rasp
  • Publication number: 20220181956
    Abstract: The invention relates to an impregnation device for trickle impregnation of a stator of an electric machine with a synthetic resin which cures under an increase in temperature, the stator having a hollow cylindrical stator core and at least one winding, a drive shaft being arranged coaxially inside the stator and being drivable by a drive motor, at least one holding device being arranged on the drive shaft, by means of which holding device the stator can be detachably connected to the drive shaft.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 9, 2022
    Applicant: Gehring Technologies GmbH + Co. KG
    Inventors: Jens Berthold, Richard A. Rasp
  • Publication number: 20200059143
    Abstract: The invention relates to a method for trickle impregnation of a stator (2) or armature of an electric machine with a synthetic resin (5) curing under temperature increase, comprising the following steps: a) heating the stator (2) or the armature from an initial temperature (T1) to a trickle temperature range (T2-T3) of the synthetic resin (5), which is initially still liquid, in a first period of time (t0-t1), b) keeping constant the temperature in the trickle temperature range (T2-T3) and introducing the synthetic resin (5), which is still liquid, into the stator (2) or the armature in a second period of time (t1-t2), c) heating the stator (2) or the armature to a curing temperature range (T4-T5) in a third period of time (t2-t3), d) keeping constant the temperature of the stator (2) or the armature in the curing temperature range (T4, T5) in a fourth period of time (t3-t4) and setting and curing the synthetic resin (5) to a duroplast, and e) cooling down the stator (2) or the armature after the end of the f
    Type: Application
    Filed: February 18, 2018
    Publication date: February 20, 2020
    Inventors: Jens Berthold, Stefan Schneider, Richard A. Rasp
  • Publication number: 20200059142
    Abstract: The invention relates to an impregnation device (1) for trickle impregnation of a stator (2) or armature of an electric machine with a synthetic resin (5) curing under temperature increase, comprising a holding device (32) which can be tilted vertically relative to the horizontal (16) and to which a drive motor (12) is attached as a rotary drive for the stator (2) or the armature, a drive shaft (58) operatively connected to the drive motor (12), a clamping device (34) which is non-rotatably connected to the drive shaft (58) and capable of detachably connecting the stator (2) or the armature to the drive shaft (58), a trickle device (24) capable of applying a synthetic resin (5) onto at least one axial end of the windings (4) of the stator (2) or the armature, and a heating device capable of heating the windings (4) of the stator (2) or the armature to a trickle temperature and to a comparatively higher curing temperature.
    Type: Application
    Filed: February 18, 2018
    Publication date: February 20, 2020
    Inventors: Jens Berthold, Stefan Schneider, Richard A. Rasp