Patents by Inventor Peter Rehnstrom

Peter Rehnstrom 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).

  • Level sensor and dispenser
    Patent number: 11849886
    Abstract: A tissue dispenser, a method, system, and a sensor unit for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This includes provided a sensor unit utilizing two sensor elements (420, 430) each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: December 26, 2023
    Assignee: ESSITY HYGIENE AND HEALTH AKITEBOLA
    Inventors: Anders Strålin, Gunilla Himmelmann, Robert Kling, Peter Rehnstrom, Jerry Svedlund
  • LEVEL SENSOR AND DISPENSER
    Publication number: 20210244241
    Abstract: A tissue dispenser, a method, system, and a sensor unit for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This includes provided a sensor unit utilizing two sensor elements (420, 430) each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.
    Type: Application
    Filed: March 12, 2021
    Publication date: August 12, 2021
    Applicant: Essity Hygiene and Health Aktiebolag
    Inventors: Anders Strahlin, Gunilla Himmelmann, Robert Kling, Peter Rehnstrom, Jerry Svedlund