Patents Assigned to Lange Uhren GmbH
  • Patent number: 6842403
    Abstract: The invention relates to a chronograph having a chronograph drive by means of which, when a first actuating element is actuated manually, a chronograph-hand stem of a chronograph hand can be driven in rotation, and having a rattrapante-hand stem, coaxial with the chronograph-hand stem, of a rattrapante hand which can be driven in an overlapping manner with the chronograph hand. A seconds heart cam for resetting the chronograph hand is arranged on the chronograph-hand stem, and the chronograph-hand stem and rattrapante-hand stem are connected to one another in a rotationally fixed manner by a rattrapante heart cam of a force-fitting coupling. A rattrapante wheel 6 is arranged on the rattrapante-hand stem, can be encompassed under spring prestressing by the gripper arms of a rattrapante gripper and can be blocked against rotation by a friection or form fit.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 11, 2005
    Assignee: Lange Uhren GmbH
    Inventor: Reinhard Meis
  • Patent number: 6252827
    Abstract: An arrangement for setting the minute hand of a timepiece which has at least minute and second hands 29, having a setting stem 1 which can be moved axially out of a normal position into a setting position. In this case, upon movement of the setting stem 1 out of the normal position into the setting position, a zero setting drive of the second hand 29 can be driven such that it moves the latter into its zero position and the seconds stem 28, which bears the second hand 29, can be driven via a seconds-display drive mechanism 30 of the movement mechanism of the timepiece. The seconds-display drive mechanism 30 has a blocking device which can be actuated, by virtue of the setting stem 1 being moved in the direction of the setting position, such that the seconds-display drive mechanism 30 is blocked before the second hand 29 is moved into the zero position.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: June 26, 2001
    Assignee: Lange Uhren GmbH
    Inventor: Helmut Geyer
  • Patent number: 6196713
    Abstract: An arrangement for setting the minute hand of a timepiece which has at least minute and second hands 29, having a setting stem 1 which can be moved axially out of a normal position into a setting position. In this case, upon movement of the setting stem 1 out of the normal position into the setting position, a zero setting drive of the second hand 29 can be driven such that it moves the latter into its zero position. By virtue of the setting stem 1 being moved out of the normal position in the direction of the setting position, it is possible to initiate operation of a spring-force-operated drive by means of which the zero setting drive of the second hand 29 can be driven such that it moves the latter into its zero position.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: March 6, 2001
    Assignee: Lange Uhren GmbH
    Inventors: Reinhard Meis, Helmut Geyer, Jens Schneider