Patents Assigned to Dorma GmbH + Co. KG
  • Patent number: 8561352
    Abstract: A sliding door with a door leaf, which is suspended from at least one carriage and guided to be displaceable along a roller rail profile disposed at a wall or at a ceiling. The sliding door includes a closing device, which is suitable to displace the door leaf into a closed position in a decelerated manner. The closing device is disposed at the door leaf and includes a first and a second spring-damper element, which are disposed to be counter-directional to each other. The second spring-damper element is suitable to displace the door leaf into an open position in a decelerated manner.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 22, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventor: Thomas Vogler
  • Patent number: 8516912
    Abstract: A swing leaf operator having a closer portion. The closer portion has an output shaft, on which a cam disc is torsion-resistantly disposed, as well as a pressure roller. A closer spring presses the pressure roller against a running surface of the cam disc. The pressure roller is disposed such that, during an opening or closing of a swing leaf coupled to the output shaft, the pressure roller is moved along a path. The path bypasses the axial center of the output shaft and on account of the configuration of the running surface of the cam disc, in different modes of operation of the swing leaf operator at a respective opening angle of the swing leaf, a very similar or identical torque is respectively applied to the output shaft. The swing leaf operator has a drive motor in operational connection with the output shaft.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: August 27, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventor: Sven Busch
  • Patent number: 8511015
    Abstract: The invention relates to a mobile partitioning wall with several wall elements suspended at running rails. In order to provide a mobile partitioning wall, which is designed to be simple to manufacture and to mount and to be universally applicable, and offers simple and variable possibilities to be optionally completed with add-on parts, the wall elements are formed without supporting frame, and mounting elements are horizontally and/or vertically disposed at the edge sides of the wall elements.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: August 20, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventor: Jan-Gerd Behrens
  • Patent number: 8479447
    Abstract: A drive system for driving and for guiding a wall element, in particular for a room partitioning wall system, with a carriage unit, which is guided to be longitudinally movable in a guiding rail. The carriage unit has a roller carriage disposed within the guiding rail, and a drive unit disposed below the guiding rail. A guiding device is provided in the transition area between the roller carriage and the drive unit that cooperates with the guiding rail for guiding the carriage unit.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: July 9, 2013
    Assignee: Dorma GmbH +Co. KG
    Inventors: Arne Liebscher, Olaf Lüttmann, Harald Hoopmann
  • Patent number: 8474185
    Abstract: A suspension for at least one panel, which is movable along a travel path, is has a guiding profile configured to longitudinally extend along the travel path and to have sidewall sections. The sidewall sections are configured to extend in a direction of the longitudinal extension of the guiding profile and parallel to a vertical extension of the movable panel. In addition, at an end facing away from the movable panel, the sidewall sections are connected to each other by means of a horizontal wall section. At an end facing the guiding profile, the at least one movable panel is received in a guided and supported manner in the guiding profile. A driver member of a linear drive system is operatively connected to the movable panel.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: July 2, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventor: Sven Busch
  • Patent number: 8456111
    Abstract: A linear drive based on linear motors, for panels, in particular sliding doors, movable along a respective travel path. A linear drive for at least one panel, in particular a sliding door leaf, movable along a travel path, has at least one linear motor for this at least one panel. The linear motor is provided with a stator member and a carriage. Furthermore, the linear drive has a control circuit. The control circuit is adapted to stop the linear motor in the event of failure of power supply to the linear motor, by switching-off the linear motor and operating it as a generator. Thereupon, in terms of its displaceability, this movable panel is enabled by the control circuit. In addition, the linear drive has a switch for switching-off the energy supply to the at least one linear motor.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: June 4, 2013
    Assignee: Dorma GmbH & Co. KG
    Inventor: Sven Busch
  • Publication number: 20130128559
    Abstract: The present invention relates to a sanitary installation (1) including at least one partition element (10), such as a wall or a door, said partition element (10) forming at least one part of a toilet cubicle. According to the invention, it is intended that the partition element (10) be configured to be self-luminous and emits light (11) over at least one partition element surface (12).
    Type: Application
    Filed: April 20, 2011
    Publication date: May 23, 2013
    Applicant: DORMA GmbH+Co.KG
    Inventors: Michael Glanz, Bernd Brieseck, Siegfried Lange
  • Patent number: 8443551
    Abstract: A sliding door with a door leaf, which is suspended from two carriages and displaceably guided along a roller rail profile, which is disposed at a wall or at a ceiling, the sliding door having at least one closing device, which is suitable to displace the decelerated door leaf into a closed position. The at least one carriage has a carrier, at or in which the closing device is disposed.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: May 21, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventor: Oliver Walhorn
  • Patent number: 8393054
    Abstract: A door operator includes a first component having a right-hand thread, a second component having a left-hand thread, and a plug-in or rotatable coupling having two complementary threads. The first and second compartments are interconnected to each other by the coupling when the right-hand thread of the first compartment and the left-hand thread of the second compartment engage the respective complementary threads of the coupling.
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: March 12, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventor: Volker Bienek
  • Patent number: 8390155
    Abstract: A coil former for a linear motor stator for an automatic door having a coil arrangement, which, upon appropriate activation, is able to produce an interaction with a linear motor rotor, which causes thrust forces, with a body for the reception of a winding wire to form a coil, and at least one flange terminating the body at the front side, wherein the at least one flange of the coil former has at least one wire reception, which is able to receive a predetermined length of the winding wire and is able to, at least partially, release it again.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: March 5, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventors: Sven Busch, Thomas Schüler
  • Publication number: 20130020515
    Abstract: A solenoid distribution valve has a housing, a valve chamber integrated in the housing and a first valve seat bore for connection to a first line, a second valve seat bore as a connection to a second line and a clear opening to a third line, an electromagnet, and a valve lifter that can be moved by the electromagnet. A valve lifter within the valve chamber includes a first sealing surface facing the first valve seat bore and a second sealing surface facing the second valve seat bore that are optionally closable. The valve lifter extends out of the valve chamber through the second valve seat bore to the electromagnet. When the second valve seat bore is closed, the valve lifter is drawn, via a differential pressure ratio, by the pressure in the second line, into the second valve seat bore.
    Type: Application
    Filed: November 30, 2010
    Publication date: January 24, 2013
    Applicant: Dorma GmbH + Co KG
    Inventors: Volker Bienek, Thomas Wildförster
  • Publication number: 20120313383
    Abstract: An electronic blocking unit for adding to a manually operateable locking device in particular a mortise lock, to provide a manually and electronically operateable locking system. The electronic blocking unit includes a blocking element, which is moveable between a blocking position and a non-blocking position, a drive mechanism for moving the blocking element, a control unit for operating the drive mechanism and a power supply for operating the control unit and the drive mechanism. The blocking element is constructed in such a way that in the blocking position it blocks an opening of a door, a window or the like and in the non-blocking position it does not block the opening of the door, the window or the like. A locking system of a door, a window or the like is formed by a manually operateable locking device and an electronic blocking unit.
    Type: Application
    Filed: May 18, 2012
    Publication date: December 13, 2012
    Applicant: Dorma GmbH + Co. KG
    Inventors: Lars Lundberg, Hakan Nordvall
  • Publication number: 20120292925
    Abstract: An electronic unit for adding to a manually operated locking device, in particular a mortise lock, to provide a manually and electronically operable locking system. The electronic unit includes a motor, gearing elements that can be operated by the motor the gearing elements configured to couple the motor to and to operate an opening and closing mechanism of the locking device connection elements for connecting the gearing elements of the electronic unit with the opening and closing mechanism and a control unit for operating the motor of the electronic unit. The gearing elements are built in such a way that during a manually operation of the locking system the motor is decoupled of the opening and closing mechanism.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicant: Dorma GmbH + Co. KG
    Inventors: Lars LUNDBERG, Hakan NORDVALL
  • Publication number: 20120279013
    Abstract: A hydraulic solenoid control valve, including a valve housing, a valve chamber, having a first valve seat bore as a connection to a first line, a second valve seat bore as a connection to a second line, and a free aperture to a third line, a solenoid, and a valve spindle movable by the solenoid and partially arranged in the valve chamber. The valve spindle includes, a first sealing surface facing the first valve seat bore and a second sealing surface facing the second valve seat bore. The first and the second valve seat bores can be closed. The valve spindle protrudes from the valve chamber through the second valve seat bore toward the solenoid. When the second valve seat bore is closed, the valve spindle is pulled into the second valve seat bore by a differential-area-ratio through the pressure in the second line.
    Type: Application
    Filed: November 30, 2010
    Publication date: November 8, 2012
    Applicant: Dorma GmbH + Co. KG
    Inventor: Thomas Wildförster
  • Publication number: 20120272475
    Abstract: A door closer, in particular a hinge door closer, including a free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and a hydraulic lock compartment adapted to lock the closer spring. An additional closer spring acts on the piston assembly, in order to slightly load the piston assembly toward the closing direction when in free-swing mode. The additional closer spring is weaker than the closer spring.
    Type: Application
    Filed: November 30, 2010
    Publication date: November 1, 2012
    Applicant: Dorma GmbH + Co. KG
    Inventor: Volker Bienek
  • Publication number: 20120240351
    Abstract: A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and a spring-loaded check valve arranged between the lock compartment and a space becoming smaller during the opening process of the door, in particular an accommodating space for the closer spring. The spring-loaded check valve locks toward the space becoming smaller.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 27, 2012
    Applicant: Dorma GmbH + Co. KG
    Inventors: Volker Bienek, Sabine Wiemann, Thomas Pabst
  • Patent number: 8274183
    Abstract: A stator for a linear motor is described. The stator has a stator member with a coil arrangement, a connecting member with external terminals, a sensor arrangement having at least one Hall sensor, and terminals for the sensor arrangement, as well as a holding member. The holding member is subdivided into a connecting member insertion portion and a stator member insertion portion and has holding devices for disposing the stator member and the connecting member stationarily, releasably and in an accurate position with regard to each other.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: September 25, 2012
    Assignee: Dorma GmbH & Co. KG
    Inventors: Michael Hufen, Axel Richstein, Thomas Schüler
  • Publication number: 20120233812
    Abstract: A door closer, in particular a hinge door closer, having a free-swing function, including a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and which is embodied as a sliding-coupling which exclusively transmits compressive forces between the closer spring and the piston assembly, and a hydraulic lock compartment adapted to lock the closer spring.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 20, 2012
    Applicant: Dorma GmbH +Co. KG
    Inventor: Volker Bienek
  • Publication number: 20120233811
    Abstract: A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and in particular a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 20, 2012
    Applicant: Dorma GmbH + Co. KG
    Inventors: Thomas Salutzki, Volker Bienek, Thomas Wildförster, Thomas Pabst, Sabine Wiemann
  • Patent number: 8248005
    Abstract: A braking circuit is adapted to supply generatively produced energy of the motor as load resistance to a bipolar transistor. The braking circuit has a voltage regulator, which controls a voltage, applied to the base terminal of the bipolar transistor to achieve an associated controlled voltage based on a reference voltage. A first power supply connector of the electrical motor, in the generator mode of operation of the electrical motor, is coupled to a collector terminal of the bipolar transistor and to the voltage input of a voltage regulator. A second power supply connector of the electrical motor is coupled to an emitter terminal of the bipolar transistor and is coupled to a reference input of the voltage regulator via a resistive branch including at least one electrical resistor.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: August 21, 2012
    Assignee: Dorma GmbH + Co. KG
    Inventor: Martin Römer