Patents by Inventor Melanie Ritscher

Melanie Ritscher 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: 20210338035
    Abstract: A floor cleaning apparatus is provided. The floor cleaning apparatus includes a liquid container, which includes a container wall and a container inner space, a tank rinsing device, which includes an inlet and outlets that are in flow connection therewith, through which outlets rinsing liquid is dispensable into the container inner space, wherein the tank rinsing device includes a rinsing channel that is able to be acted upon by way of the inlet and that comprises a first channel part and a second channel part joined thereto, said channel parts forming between them a channel inner space of the rinsing channel, which can be flowed through by the rinsing liquid, and wherein the outlets are arranged on the second channel part and are flow connected to the channel inner space.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: Melanie Ritscher, Alexander Gilich
  • Patent number: 10779697
    Abstract: A method for adjusting a position of suction lips of a floor cleaning machine relative to a floor to be cleaned is proposed, wherein a first suction lip and at least one second suction lip located at a distance therefrom, which are arranged on a suction beam, contact the floor, a fan device generates a suction flow which subjects a space between the first suction lip and the second suction lip to a negative pressure, a negative pressure is detected, and the suction flow is adjusted such that the negative pressure lies at a set value or in a set value range, so that an angle of incidence of the first suction lip and the second suction lip on the floor lies at a set value or in a set value range.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: September 22, 2020
    Assignee: Alfred Kärcher SE & Co. KG
    Inventors: Juergen Walz, Melanie Ritscher, Wilhelm Eisenmann
  • Patent number: 9931013
    Abstract: A manually guided floor cleaning machine is provided, including a chassis with a front end and a rear end in relation to a straight ahead forward travel direction, a wheel arrangement, which is arranged on the chassis in the region of the rear end, and a cleaning head, which is pivotably arranged on the chassis in the region of the front end, wherein there is provided a steering rod device, which is articulated on the cleaning head, which is supported on the chassis and which extends upwardly in a direction away from the chassis toward the rear end.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 3, 2018
    Assignee: Alfred Kärcher GmbH & Co. KG
    Inventors: Frank Nonnenmann, Melanie Ritscher
  • Publication number: 20180028034
    Abstract: A floor-cleaning machine is provided, comprising a chassis, a suction bar apparatus arranged on the chassis, a dirt-holding container, a retaining apparatus, which retains the dirt-holding container movably in relation to the chassis in either a dirt-holding position or a dirt-discharging position, wherein the retaining apparatus comprises a parallelogram guide having a first link and a second link, which are each respectively articulated to the dirt-holding container and to the chassis or an element connected thereto, wherein the first and second links are oriented parallel and the retaining apparatus is configured such that a pivoting orientation of the dirt-holding container in relation to the chassis is maintained during transition from the dirt-holding to the dirt-discharging positions, and a tipping drive is associated with the dirt-holding container, by means of which the dirt-holding container in the dirt-discharging position is configured to be brought into an emptying position for dirt by tipping.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Inventors: Christoph Kistler, Michael Oesterle, Melanie Ritscher
  • Patent number: 9420930
    Abstract: A manually guided floor cleaning machine is provided, including a chassis with a front end and a rear end in relation to a straight ahead forward travel direction, a wheel arrangement, which is arranged on the chassis in the region of the rear end, and a cleaning head, which is pivotably arranged on the chassis in the region of the front end, at least one brush being arranged on the cleaning head and a drive device being arranged for the driven rotation of the at least one brush, a rotational axis of the at least one brush being parallel to a wheel axis of the wheel arrangement in the straight ahead forward travel direction.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: August 23, 2016
    Assignee: Alfred Kärcher GmbH & Co. KG
    Inventors: Melanie Ritscher, Frank Nonnenmann
  • Publication number: 20140230182
    Abstract: A manually guided floor cleaning machine is provided, including a chassis with a front end and a rear end in relation to a straight ahead forward travel direction, a wheel arrangement, which is arranged on the chassis in the region of the rear end, and a cleaning head, which is pivotably arranged on the chassis in the region of the front end, at least one brush being arranged on the cleaning head and a drive device being arranged for the driven rotation of the at least one brush, a rotational axis of the at least one brush being parallel to a wheel axis of the wheel arrangement in the straight ahead forward travel direction.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: Alfred Kärcher GmbH & Co. KG
    Inventors: Melanie Ritscher, Frank Nonnenmann
  • Publication number: 20140230183
    Abstract: A manually guided floor cleaning machine is provided, including a chassis with a front end and a rear end in relation to a straight ahead forward travel direction, a wheel arrangement, which is arranged on the chassis in the region of the rear end, and a cleaning head, which is pivotably arranged on the chassis in the region of the front end, wherein there is provided a steering rod device, which is articulated on the cleaning head, which is supported on the chassis and which extends upwardly in a direction away from the chassis toward the rear end.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: Alfred Kärcher GmbH & Co. KG
    Inventors: Frank Nonnenmann, Melanie Ritscher