Patents by Inventor Andreas Laaser

Andreas Laaser 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).

  • Patent number: 9585532
    Abstract: A rotating brush roller of a floor care device is a cylindrical rotational element including a hollow body as a central piece and end pieces to be supported via bearings in a brush housing of the floor care device. A spiral, outwardly open, receiving shaft or groove is provided in the outer circumferential surface of the hollow body for receiving and retaining therein a continuous spiral brush strip. The central piece is a self-supporting hollow body of plastic, into opposite ends of which the end pieces engage with a form-fitting connection. The receiving shaft for receiving the brush strip continues at least partially in the end pieces.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: March 7, 2017
    Assignee: Stein & Co. GmbH
    Inventors: Achim Liffers, Andreas Laaser
  • Publication number: 20140000054
    Abstract: On a brush roller (A) of a floor care device with a rotating brush roller as a cylindrical rotational element, wherein the brush roller (A) as a hollow body is arranged by outwardly located inserted end pieces (4, 5) via bearings in a brush housing. In this regard it is provided to arrange in a spiral-shaped extending receiving shaft (2) in the outer circumferential surface area of the hollow body with an outwardly located through passage area for receiving and retaining a continuous brush strip (3). In that regard, a central segment (1) is embodied as a self-supporting hollow body of plastic, into which the outwardly located end pieces (4, 5) engage with a form-fitting connection, and the end pieces (4, 5) at least partially continue the receiving shaft (2).
    Type: Application
    Filed: October 17, 2012
    Publication date: January 2, 2014
    Applicant: STEIN & Co. GmbH
    Inventors: Achim Liffers, Andreas Laaser
  • Patent number: 7266861
    Abstract: A brush roller accessory for a vacuum cleaner includes a main support roller and a power-driven brush roller rotatably arranged in a housing, and a spring-biased adjusting roller that adjustably protrudes from the housing to bear some of the total contact force of the accessory against a floor, to reduce or relieve the contact force exerted by the brush roller against the floor. The adjusting roller is rotatably mounted on a pivot lever, having a first end pivotally connected to the housing and a second end connected to a spring that biases the lever to pivot the adjusting roller outwardly from the housing. A rotary knob with several stop surfaces selects an upper limit on the pivot range of the lever and the adjustment height of the adjusting roller. A coupling link pivots the adjusting roller to a maximally protruding position to lift the brush roller into a parking position.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: September 11, 2007
    Assignee: Stein & Co. GmbH
    Inventors: Thomas Stein, Andreas Laaser
  • Publication number: 20040154114
    Abstract: A brush roller accessory for a vacuum cleaner includes a main support roller and a power-driven brush roller rotatably arranged in a housing, and a spring-biased adjusting roller that adjustably protrudes from the housing to bear some of the total contact force of the accessory against a floor, to reduce or relieve the contact force exerted by the brush roller against the floor. The adjusting roller is rotatably mounted on a pivot lever, having a first end pivotally connected to the housing and a second end connected to a spring that biases the lever to pivot the adjusting roller outwardly from the housing. A rotary knob with several stop surfaces selects an upper limit on the pivot range of the lever and the adjustment height of the adjusting roller. A coupling link pivots the adjusting roller to a maximally protruding position to lift the brush roller into a parking position.
    Type: Application
    Filed: July 28, 2003
    Publication date: August 12, 2004
    Inventors: Thomas Stein, Andreas Laaser