Patents Assigned to Rowenta-Werke GmbH
  • Dental device attachable to an electric toothbrush drive
    Patent number: 5461744
    Abstract: A dental device for an electric toothbrush drive having a drive shaft, the dental device including a housing, a motion converter arranged in the housing and including a rocker arm, a rotary oscillation plate having an eccentrically arranged plug-in opening, and a plug-in axle for operatively connecting the rotary oscillation plate to the rocker arm via the plug-in opening. A guide is provided for releasably and operatively connecting one end of the rocker arm to the drive shaft of the toothbrush drive, and a bearing is provided for rotatably supporting the rotary oscillating plate at the housing. The motion converter converts the movement of the drive shaft into rotational ocillatory movement of the rotary oscillation plate about the plug-in axle.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: October 31, 1995
    Assignee: Rowenta-Werke GmbH
    Inventor: Lothar Merbach
  • Electric circuit for controlling the heat output of heating resistances in household appliances
    Patent number: 5438914
    Abstract: An electric circuit operating on a single-phase power supply system for controlling the heat output of at least two heating resistances which are electrically connected in parallel and are installed in electric household appliances, particularly toasters, wherein the control is being effected in compliance with flicker standards and without feeding interference back into the power supply system. A switch is connected in series with each heating resistance, wherein the switches are activated by an electronic energizing arrangement. During a heating phase, the switches of the circuit are repetitively asymmetrically cycled in such a way that always only one switch is closed and all other switches are open, wherein the switch which is closed at a given time exclusively permits the through-passage of full waves from the power supply system.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: August 8, 1995
    Assignee: Rowenta-Werke GmbH
    Inventors: Dieter Hohn, Michael Steinle
  • Steam iron with pump and pressure reservoir
    Patent number: 5341585
    Abstract: The invention relates to a steam iron comprising a water tank 1 and an evaporation chamber 13, the water supply from the water tank to the evaporation chamber being effected via an electric pump 2, whose operation is dependent upon the water level in a reservoir 3 provided in the water supply between the pump and the evaporation chamber.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: August 30, 1994
    Assignee: Rowenta-Werke GmbH
    Inventors: Hilmar Stephan, Gerhard Molz, Heinz Buttgen
  • Work device shaft for the electric drive mechanism of a toothbrush
    Patent number: 5213434
    Abstract: A plug-in connector for an electric toothbrush drive mechanism, including an electric motor and a movement converter which is arranged between the motor and a plug-in shaft and sets the plug-in shaft in radial and longitudinal movement, the motor and converter being arranged in a housing, and the plug-in shaft, which is supported in a bottom surface of the housing, has a free end that penetrates the bottom surface, the plug-in connector is detachably connected with the housing and the plug-in shaft is engaged in an installed state with a connecting rod arranged on the inside of the plug-in connector, and an end of the connecting rod remote of the plug-in shaft is in a working connection with a radial drive, the connecting rod and radial drive being connected with one another by an elastically deformable spiral, and the connecting rod, spiral and radial drive being constructed so as to form one piece.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: May 25, 1993
    Assignee: Rowenta-Werke GmbH
    Inventor: Matthias Hahn
  • Domestic electrical vacuum cleaner with suction tube holder
    Patent number: 5142731
    Abstract: The invention relates to a vacuum cleaner with a suction tube nozzle unit, consisting of suction hose, handle, suction tube and suction nozzle, the suction nozzle unit being releasably connected to the vacuum cleaner housing by a coupling device.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: September 1, 1992
    Assignee: Rowenta-Werke GmbH
    Inventor: Gerald Resch
  • Holding device on an electrical vacuum cleaner
    Patent number: 5125127
    Abstract: An electrical vacuum cleaner, including a vacuum cleaner housing, a suction tube nozzle unit, a suction hose, a suction tube and a suction nozzle, and a retaining arrangement for the suction tube nozzle unit which is provided on the vacuum cleaner housing, the retaining arrangement including a pivotable retaining clip for the suction tube and a retaining recess for a hook mounted on at least one of the suction tube and the suction nozzle, a spring arm movably mounted on an inner wall of the vacuum cleaner housing, the spring arm being hinged, at one end, to the retaining clip, its other end being operatively connectable to the hook in the region of the retaining recess, and a resiliently deformable holder mounted on the spring arm substantially at right angles to a direction of movement, the spring arm and the holder having a recoil force which is less than a force exerted by the hook on the spring arm.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: June 30, 1992
    Assignee: Rowenta-Werke GmbH
    Inventors: Orest Bach, Gerald Resch
  • Kitchen scale
    Patent number: D326825
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: June 9, 1992
    Assignee: Rowenta-Werke GmbH
    Inventors: Franz A. Stutzer, Bernd Kohler
  • Steam iron
    Patent number: D327151
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: June 16, 1992
    Assignee: Rowenta-Werke GmbH
    Inventors: Eduard Rohner, Franz A. Stutzer
  • Coffee grinder
    Patent number: D336213
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: June 8, 1993
    Assignee: Rowenta-Werke GmbH
    Inventor: Franz A. Stutzer
  • Toaster
    Patent number: D338131
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: August 10, 1993
    Assignee: Rowenta-Werke GmbH
    Inventor: Franz A. Stutzer
  • Vacuum cleaner
    Patent number: D338294
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: August 10, 1993
    Assignee: Rowenta-Werke GmbH
    Inventor: Bernd Kohler
  • Toaster
    Patent number: D342862
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: January 4, 1994
    Assignee: Rowenta-Werke GmbH
    Inventor: Michael Kurz
  • Ironing station
    Patent number: D348338
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: June 28, 1994
    Assignee: Rowenta-Werke GmbH
    Inventor: Franz A. Stutzer
  • Steam iron
    Patent number: D349377
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: August 2, 1994
    Assignee: Rowenta-Werke GmbH
    Inventors: Franz A. Stutzer, Eduard Rohner
  • Vacuum cleaner
    Patent number: D362522
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: September 19, 1995
    Assignee: Rowenta-Werke GmbH
    Inventor: Bernd Kohler
  • Steam generator for a steam iron
    Patent number: D364019
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: November 7, 1995
    Assignee: Rowenta-Werke GmbH
    Inventor: Bernd Reibl
  • Vacuum cleaner
    Patent number: D368993
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: April 16, 1996
    Assignee: Rowenta-Werke GmbH
    Inventors: Franz A. Stutzer, Bernd Kohler
  • Iron
    Patent number: D369003
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: April 16, 1996
    Assignee: Rowenta-Werke GmbH
    Inventor: Bernd Figur
  • Steam iron
    Patent number: D369004
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: April 16, 1996
    Assignee: Rowenta-Werke GmbH
    Inventor: Bernd Reibl
  • Steam iron
    Patent number: D369005
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: April 16, 1996
    Assignee: Rowenta-Werke GmbH
    Inventors: Franz A. Stutzer, Bernd Reibl