Patents by Inventor Jens Wolfstaedter

Jens Wolfstaedter 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: 11975881
    Abstract: A carrier (1) for the simultaneous measurement of sealing temperature, sealing time and sealing force in a primary packaging line for ophthalmic lenses comprises a temperature sensing plate (2), a force sensing plate (3), and a supporting plate (4). Temperature sensing plate (2) is arranged atop force sensing plate (3), which is arranged atop supporting plate (4).
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: May 7, 2024
    Assignee: Alcon Inc.
    Inventors: Jens Wolfstädter, Alfred Fischer, Felix Brinckmann, Nils Schweizer
  • Patent number: 11851291
    Abstract: A method for transporting a blister strip of ophthalmic lenses: only one single blister strip is provided at a start location and one magazine compartment of two magazine compartments contains n blister strips while the other magazine compartment contains n+1 blister strips, the single buster strip is picked up at the start location by one of the gripper units of a first gripper and is transported into that magazine compartment containing the n blister strips, by moving the first gripper to that magazine compartment containing the n blister strips and releasing the single blister strip from the first gripper into that magazine compartment, or by moving the first gripper to a hand-over station and releasing the single blister strip from the first gripper into the hand-over station, transporting the single blister strip from the hand-over station into that magazine compartment containing the n blister strips using a second gripper.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: December 26, 2023
    Assignee: Alcon Inc.
    Inventors: Felix Brinckmann, Nils Schweizer, Jens Wolfstädter
  • Publication number: 20220081143
    Abstract: A carrier (1) for the simultaneous measurement of sealing temperature, sealing time and sealing force in a primary packaging line for ophthalmic lenses comprises a temperature sensing plate (2), a force sensing plate (3), and a supporting plate (4). Temperature sensing plate (2) is arranged atop force sensing plate (3), which is arranged atop supporting plate (4).
    Type: Application
    Filed: September 13, 2021
    Publication date: March 17, 2022
    Inventors: Jens Wolfstädter, Alfred Fischer, Felix Brinckmann, Nils Schweizer
  • Patent number: 11204297
    Abstract: A method for determining whether a sealing area of a primary packaging container for an ophthalmic lens is unacceptable for properly sealing a foil to the sealing area is disclosed. The method involves comparing the temperature of an infrared image of the sealing area to a reference temperature to determine if the difference in temperature exceeds a predetermined threshold.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: December 21, 2021
    Assignee: Alcon Inc.
    Inventors: Felix Brinckmann, Gabriela Cocora, Nils Schweizer, Jens Wolfstaedter
  • Publication number: 20210323162
    Abstract: A method for calibrating lens grippers prior to use of the grippers in a lens manufacturing line includes providing a remote gripper calibration tool having an assembly plate and a Z-directional position sensor; providing a master gripper having a length dimension terminating in a tip, the length dimension being predetermined to match a desired final extension length of a lens gripper; mounting the master gripper to the assembly plate; measuring the Z-directional position of the tip of the master gripper with the Z-directional position sensor; unmounting the master gripper from the assembly plate; mounting a lens gripper to be calibrated to the assembly plate, the lens gripper having a tip, and calibrating the lens gripper by adjusting the final extension length of the tip of the lens gripper to a predetermined position relative to the measured Z-directional position of the tip of the master gripper.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 21, 2021
    Inventors: Felix Brinckmann, Nils Schweizer, Jens Wolfstaedter
  • Publication number: 20210253366
    Abstract: A method for transporting a blister strip of ophthalmic lenses: only one single blister strip is provided at a start location and one magazine compartment of two magazine compartments contains n blister strips while the other magazine compartment contains n+1 blister strips, the single buster strip is picked up at the start location by one of the gripper units of a first gripper and is transported into that magazine compartment containing the n blister strips, by moving the first gripper to that magazine compartment containing the n blister strips and releasing the single blister strip from the first gripper into that magazine compartment, or by moving the first gripper to a hand-over station and releasing the single blister strip from the first gripper into the hand-over station, transporting the single blister strip from the hand-over station into that magazine compartment containing the n blister strips using a second gripper.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Inventors: Felix Brinckmann, Nils Schweizer, Jens Wolfstädter
  • Publication number: 20200386647
    Abstract: A method for determining whether a sealing area (13) of a primary packaging container (1) for an ophthalmic lens is unacceptable for properly sealing a foil to the sealing area (13) comprises the steps of taking an infrared image (7) of the primary packaging container (1); determining in the infrared image (7) a plurality of individual pixels (700-709) which are arranged along an area (73) corresponding to the sealing area (13) of the primary packaging container (1); determining from the infrared image (7) the temperature (T0, T1, T2) of the individual pixels (700-709), and determining that the sealing area (13) is unacceptable in case the following conditions are fulfilled: a) the temperature (T1) of each individual pixel of a predetermined number of coherently arranged individual pixels (700, 703, 706) is lower than a reference temperature (T0), and b) the difference between the temperature (T1) of each individual pixel (700; 703; 706) of the coherently arranged pixels (700, 703, 706) and the reference
    Type: Application
    Filed: June 5, 2020
    Publication date: December 10, 2020
    Inventors: Felix Brinckmann, Gabriela Cocora, Nils Schweizer, Jens Wolfstaedter
  • Publication number: 20200165120
    Abstract: An apparatus for dispensing a liquid into one or more cavities of one packaging shells for ophthalmic lenses, comprises a dispenser block, a dispenser head separate from the dispenser block. The apparatus further comprises one or more tubes connecting the dispenser block and the dispenser head. Additionally, the dispenser block comprises a reservoir for the liquid to be dispensed, and one or more dosing pumps for conveying the liquid from the reservoir to the dispenser head. The dispenser head comprises one or more dispensing tips detachably arranged on the dispenser head, each of the dispensing tips being in fluid communication with the dispenser block by a separate one of the one or more tubes.
    Type: Application
    Filed: November 25, 2019
    Publication date: May 28, 2020
    Inventors: Jens Wolfstaedter, Felix Brinckmann, Nils Schweizer, Alfred Fischer