Patents by Inventor Thor Christian HOBÆK

Thor Christian HOBÆK 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: 11892396
    Abstract: A gas sensor (2) distinguishes between a target gas and a contaminant and includes a light source (8), a measurement volume (4), a detector (22), and an adaptable filter system (20) with a first optical filter and a second optical filter. The filter system switches between a first composite state, with both filters in a reference state, a second composite state, with the first filter in a first reference state and the second filter in a second measurement state, a third composite state with the first filter in a first measurement state and the second filter in a second reference state, and a fourth composite state, with both filters in a measurement state. The gas sensor detects a target gas and makes a determination as to a presence of the contaminant by comparing the respective detector signals, generated during at least three of the composite states, with each other.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: February 6, 2024
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Håkon Sagberg, Britta Greenberg-Fismen, Thor Christian Hobæk
  • Publication number: 20220042903
    Abstract: A gas sensor (2) distinguishes between a target gas and a contaminant and includes a light source (8), a measurement volume (4), a detector (22), and an adaptable filter system (20) with a first optical filter and a second optical filter. The filter system switches between a first composite state, with both filters in a reference state, a second composite state, with the first filter in a first reference state and the second filter in a second measurement state, a third composite state with the first filter in a first measurement state and the second filter in a second reference state, and a fourth composite state, with both filters in a measurement state. The gas sensor detects a target gas and makes a determination as to a presence of the contaminant by comparing the respective detector signals, generated during at least three of the composite states, with each other.
    Type: Application
    Filed: December 12, 2019
    Publication date: February 10, 2022
    Inventors: Håkon SAGBERG, Britta GREENBERG-FISMEN, Thor Christian HOBÆK
  • Patent number: 10481080
    Abstract: A gas sensing apparatus (48) comprises a gas sensor arranged to use light to sense presence of a gas; an optical element (12, 40) arranged so that said light impinges thereon; and a thermoelectric heat pump (2, 24) having a cold side (6, 36) and a hot side (8, 34). The thermoelectric heat pump (2, 24) is configured to transfer heat energy from said cold side (6, 36) to said hot side (8, 34) in response to a supply of electrical energy provided to the thermoelectric heat pump (2, 24). The hot side (8, 34) of the thermoelectric heat pump (2, 24) is in thermal contact with the optical element (12, 40).
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 19, 2019
    Assignee: GASSECURE AS
    Inventors: Lars Borgen, Britta Fismen, Thor Christian Hobæk, Håkon Sagberg
  • Publication number: 20180202920
    Abstract: A gas sensing apparatus (48) comprises a gas sensor arranged to use light to sense presence of a gas; an optical element (12, 40) arranged so that said light impinges thereon; and a thermoelectric heat pump (2, 24) having a cold side (6, 36) and a hot side (8, 34). The thermoelectric heat pump (2, 24) is configured to transfer heat energy from said cold side (6, 36) to said hot side (8, 34) in response to a supply of electrical energy provided to the thermoelectric heat pump (2, 24). The hot side (8, 34) of the thermoelectric heat pump (2, 24) is in thermal contact with the optical element (12, 40).
    Type: Application
    Filed: June 16, 2016
    Publication date: July 19, 2018
    Inventors: Lars BORGEN, Britta FISMEN, Thor Christian HOBÆK, Håkon SAGBERG