Patents by Inventor Hendrik DATEMA

Hendrik DATEMA 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).

  • Dual clutch comprising two clutch units which act in a force-fitting manner
    Patent number: 9752625
    Abstract: Dual clutch including two clutch units acting in a force-fitting manner and mounted on a common clutch hub in a rotationally fixed and axially movable manner, a pressure disk arrangement retained between the clutch units on the clutch hub in an axially fixed manner and including two axially movable pressure pistons each of which can be ventilated by a compression spring arrangement positioned in the clutch hub. Each compression spring arrangement includes multiple compression springs, each of which is arranged in a recess of the clutch hub. Each recess is introduced into the clutch hub as an axially extending blind hole. The pressure disk arrangement is received in a radial groove of the clutch hub, the groove being radially and/or axially spaced from the blind holes.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 5, 2017
    Assignee: STROMAG GMBH
    Inventors: Hendrik Datema, Matthias Glomm, Thomas Haeseker
  • DUAL CLUTCH COMPRISING TWO CLUTCH UNITS WHICH ACT IN A FORCE-FITTING MANNER
    Publication number: 20150330461
    Abstract: Dual clutch including two clutch units acting in a force-fitting manner and mounted on a common clutch hub in a rotationally fixed and axially movable manner, a pressure disk arrangement retained between the clutch units on the clutch hub in an axially fixed manner and including two axially movable pressure pistons each of which can be ventilated by a compression spring arrangement positioned in the clutch hub. Each compression spring arrangement includes multiple compression springs, each of which is arranged in a recess of the clutch hub. Each recess is introduced into the clutch hub as an axially extending blind hole. The pressure disk arrangement is received in a radial groove of the clutch hub, the groove being radially and/or axially spaced from the blind holes.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 19, 2015
    Inventors: Hendrik DATEMA, Matthias GLOMM, Thomas HAESEKER