Patents by Inventor Andrea Lukas

Andrea Lukas 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).

  • Publication number: 20110296722
    Abstract: Piezoelectric pump for a household electric appliance having a moving wall interposed between a first casing element defining a pumping chamber with the moving wall, and a second casing element applying pressure to the periphery of the moving wall in order to hold the latter in position. The moving wall has an exterior face in contact with a piezoelectric actuator designed to cause the moving wall to move so as to bring about a periodic variation in the volume of the pumping chamber under the action of the piezoelectric actuator wherein the first casing element and the second casing element are held together under stress by an elastic clip, the elastic clip applying a pressure that tends to compress the first casing element onto the second casing element.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 8, 2011
    Applicant: ROWENTA WERKE GMBH
    Inventors: Andrea Lukas, Björn Scheve, Matthias Hahn
  • Publication number: 20110296723
    Abstract: Provided is an ironing appliance, including a pump that has a pumping chamber provided with an inlet and an outlet, the pumping chamber including a movable wall having an outer surface contacting a piezoelectric actuator provided to move the movable wall while changing the volume of the pumping chamber by the piezoelectric actuator, wherein the pump is placed in the ironing appliance such that the outlet of the pumping chamber is located at a higher level than the inlet in a normal position for operating the appliance.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 8, 2011
    Applicant: ROWENTA WERKE GMBH
    Inventors: Andrea Lukas, Björn Scheve, Matthias Hahn, Franck Mandica, Dominique Gelus
  • Patent number: 7305780
    Abstract: Pressing iron composed of a soleplate fixed to a heating body, wherein the soleplate has a pattern of at least 200 steam outlet holes each having a passage cross section smaller than 4 mm2, with spacings of less than 10 mm between hole centers, and wherein the pattern of steam outlet holes is interrupted by an imperforate band having a width greater than 10 mm, which band extends over the pattern.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: December 11, 2007
    Assignee: Rowenta Werke GmbH
    Inventors: Andrea Lukas, Matthias Hahn, Michel Forest
  • Publication number: 20070079534
    Abstract: Pressing iron composed of a soleplate fixed to a heating body, wherein the soleplate has a pattern of at least 200 steam outlet holes each having a passage cross section smaller than 4 mm2, with spacings of less than 10 mm between hole centers, and wherein the pattern of steam outlet holes is interrupted by an imperforate band having a width greater than 10 mm, which band extends over the pattern.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 12, 2007
    Applicant: ROWENTA Werke GmbH
    Inventors: Andrea Lukas, Matthias Hahn, Michel Forest
  • Patent number: 6895700
    Abstract: A soleplate for a clothes pressing iron, composed of: a metal sheet having a lower surface that will be directed toward fabrics to be ironed, a lower surface layer that extends form the lower surface and an interior region that is separated from the lower surface by the lower surface layer, the lower surface layer being mechanically hammer-hardened, or work hardened, to have a hardness greater than the hardness of the sheet prior to being mechanically hardened; and a coating that is hard and resistant to scratching covering the lower surface.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: May 24, 2005
    Assignee: Rowenta Werke GmbH
    Inventors: Andrea Lukas, Matthias Hahn
  • Patent number: 6766548
    Abstract: An accessory mount for an electric toothbrush having a motor which is arranged in a handpiece for driving vibration-generating mechanism. The mount including an elongate protective cover attachable to the handpiece. The vibration-generating mechanism is arrangeable in an interior of the elongate protective cover. A sleeve is fitted onto the protective cover so as to cover the protective cover over at least part of its length.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 27, 2004
    Assignee: Rowenta-Werke GmbH
    Inventors: Andrea Lukas, Harald Trocha
  • Publication number: 20030177672
    Abstract: A soleplate for a clothes pressing iron, composed of: a metal sheet having a lower surface that will be directed toward fabrics to be ironed, a lower surface layer that extends form the lower surface and an interior region that is separated from the lower surface by the lower surface layer, the lower surface layer being mechanically hammer-hardened, or work hardened, to have a hardness greater than the hardness of the sheet prior to being mechanically hardened; and a coating that is hard and resistant to scratching covering the lower surface.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 25, 2003
    Applicant: ROWENTA Werke GmbH
    Inventors: Andrea Lukas, Matthias Hahn
  • Patent number: D656286
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 20, 2012
    Assignee: Rowenta Werke GmbH
    Inventors: Dierk Spatz, Andrea Lukas, Ralf Kremer