Patents Assigned to Drager Safety AG & Co. KGaA
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Patent number: 11892396Abstract: 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: GrantFiled: December 12, 2019Date of Patent: February 6, 2024Assignee: Dräger Safety AG & Co. KGaAInventors: Håkon Sagberg, Britta Greenberg-Fismen, Thor Christian Hobæk
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Patent number: 11883193Abstract: A process and an activation device (30) provides a user (B) activation of a drug measuring device (100). This drug measuring device includes an input unit (3), a testing unit (6) for testing given samples and an image recording device (12). The activation device (30) receives an activation image set (InB), which was generated by the drug measuring device or by a drug measuring device and at least one image (40, 40.1) from the image recording device. The received activation image set is checked as to meeting a predefined release criterion. For this the activation image set is compared with a predefined reference image set (35) for the user. If the release criterion is met, the drug measuring device is released for the user. An activation data set (32) for the user is completed by at least one image of the activation image set, which shows the user.Type: GrantFiled: October 28, 2020Date of Patent: January 30, 2024Assignee: Dräger Safety AG & Co. KGaAInventors: Alexander Sarcinelli, Michael Richenberger, Carlo Rattey
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Patent number: 11883696Abstract: A housing (10) for a closed-circuit breathing apparatus (100) is provided for mounting respirator components (110) in an interior (40) thereof. The housing (10) includes a housing mount (20) and a housing cover (30) for covering the interior (40). The housing mount (20) has a first partial section (52) of at least one passage opening (50) for passage of a breathing tube (120) into the interior (40). The housing cover (30) has a second partial section (54) of this passage opening (50). The housing mount (20) and/or the housing cover (30) further have/has a fastening section (60) for the mechanical fastening to a counter-fastening section (122) of the breathing tube (120), which breathing tube (120) is guided through the passage opening (50).Type: GrantFiled: December 20, 2018Date of Patent: January 30, 2024Assignee: Dräger Safety AG & Co. KGaAInventors: Johannes Herrmann, Christian Ulbrich
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Patent number: 11864616Abstract: A safety helmet (100) includes a helmet shell (7), with a bearing support structure (2, 5, 9, 21), with a helmet-side coupling point and with a module adapter (1). The bearing support structure (2, 5, 9, 21) is fastened to the helmet shell (7) on an inside. A helmet-side adapter coupling point of the module adapter (1) can be connected detachably to the safety helmet-side adapter coupling point of the module adapter (1). The module adapter (1) holds a module at the safety helmet (100). A process for fastening a module detachably to a safety helmet (100).Type: GrantFiled: April 27, 2021Date of Patent: January 9, 2024Assignee: Dräger Safety AG & Co. KGaAInventor: Jasser Rahmatyan
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Patent number: 11841317Abstract: A gas detection device and process detect a target gas for monitoring an area for the target gas. A radiation source emits electromagnetic radiation (50) that penetrates the area and impinges on an array of filters (15, 25) that distributes the impinging radiation (50) onto a first gas photosensor (35), a second gas photosensor (37) and a reference photosensor (36). The first gas photosensor (35) is only sensitive to radiation in a first wavelength range, the second gas photosensor (37) is only sensitive to radiation in a second wavelength range and the reference photosensor (36) is only sensitive to radiation in a reference wavelength range. The wavelength ranges are spaced apart from one another. An analysis unit (10) analyzes signals [Sig(35), Sig(36), Sig(37)] from the three photosensors (35, 36, 37) and carries out three pair comparisons to determine whether or not the target gas is present.Type: GrantFiled: November 4, 2021Date of Patent: December 12, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Andreas Flammiger
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Patent number: 11828720Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: GrantFiled: December 2, 2020Date of Patent: November 28, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Rigobert Chrzan, Sabrina Sommer, Frank Mett, Andreas Hengstenberg
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Patent number: 11786765Abstract: A cooling element (100) for use within a cooling device (600) of a closed-circuit respirator (690), includes a plate shaped cooling element housings (110, 120), each with a respective liquid-tight closure (112, 122) filled or to be filled with a coolant (211). The cooling element housings (110, 120) each have a plate outer wall (114, 124) and a plate inner wall (116, 126) arched in the direction of the plate outer wall, which form, together with additional side walls (115, 125), cooling element volumes (118, 128) for the coolant. The plate shape cooling housings can be fastened or are fastened to each other such that the one plate inner wall and another plate inner wall are located opposite each other and are arched away from one another.Type: GrantFiled: October 21, 2020Date of Patent: October 17, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Ugur Hayran
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Patent number: 11751805Abstract: A detection system (100) detects at least ethanol in human sweat. The detection system (100) includes at least one sensor (105) that is an electrochemical gas sensor. The at least one sensor (105) is configured at least for the detection of ethanol. The detection system (100) further includes a measuring chamber (107), in which substances excreted by the user via the user's skin can be fed via a waterproof, gas-permeable diffusion membrane to the at least one sensor (105). The detection system (100) further includes at least one seal (127), which is configured to be brought into direct contact with the skin of a user and to protect at least the measuring chamber (107) from environmental effects.Type: GrantFiled: June 19, 2020Date of Patent: September 12, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Rainer Polzius, Michael Sick, Jens Rekow, Marie-Isabell Mattern-Frühwald
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Patent number: 11749087Abstract: A process and system analyze data provided by a mobile gas measuring device (3a) for generating an alarm. An alarm management system implements the process and system. The measured data are transmitted to another gas measuring device and/or to a data processing unit (1) and are compared to a limit value. If a limit value violation is detected, an alarm control signal is generated for implementing an instruction for action. A hazard potential is determined and is assigned to the limit value violation in the gas measuring device, the other device, and/or in the data processing unit, taking into consideration weighted influencing variables. Upon a first limit value violation and a second limit value violation being determined, the hazard potentials of these violations are compared and a prioritization is determined based on the comparison. The generation of the alarm control signals is carried out based on the determined prioritization.Type: GrantFiled: February 24, 2022Date of Patent: September 5, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Malte Berndt, Christof Rodehorst, Raphael Maas
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Patent number: 11738164Abstract: A preflushing unit (10) preflushes a breathing gas circuit (210) of a closed-circuit respirator (200). A basic body (20) has an inlet port (22), feeding breathing gas from a breathing gas supply (220), an outlet port (24) discharging breathing gas into the breathing circuit, and a flow section (32) fluid connecting a valve chamber (30). A valve body (40) with a sealing surface (42) is arranged in the valve chamber (30). An elastomer body (50) with a counter-sealing surface (52) in the valve chamber, fluid tight separates the flow section from a control section (34). The counter-sealing surface acts with a sealing force against the valve body for sealing the flow section. A control port (26) of the basic body provides a controlled feed of breathing gas from the breathing gas supply into the control section for pressure equalization between the flow section and the control section.Type: GrantFiled: November 19, 2018Date of Patent: August 29, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Kurt Wenderoth
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Patent number: 11733193Abstract: A heat tone sensor includes a housing with a gas inlet and with a gas outlet as well as a device for generating a gas stream of a gas to be tested between the gas inlet and the gas outlet. A measuring element, around and/or through which the gas stream flows, is configured to catalytically burn at least a portion of the gas stream and to send a measurement signal. The measurement signal indicates a quantity of heat released in the process.Type: GrantFiled: December 12, 2018Date of Patent: August 22, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Mladen Schlichte, Peter Tschuncky, Jürgen Osswald, Sebastian Schröter, Tim Gnoerrlich, Martin Schrader
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Patent number: 11707103Abstract: A safety helmet with a helmet shell, with a bearing ring, with a rotatable actuating element (14) and with a transmission unit (15.1, 15.2). The transmission unit (15.1, 15.2) transmits a rotation of the actuating element to the bearing ring, so that the head size provided is changed. A helmet shell-side transmission piece (15.1) is non-rotatably connected to the actuating element (14) such that they rotate in unison, and a bearing ring-side transmission piece (15.2) is connected mechanically to the bearing ring. The helmet shell-side transmission piece (15.1) can move both relative to the actuating element (14) and relative to the bearing ring-side transmission piece (15.2) linearly in two opposite directions. The distance between the actuating element (14) and the bearing ring can be changed thereby.Type: GrantFiled: April 28, 2021Date of Patent: July 25, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Jan Musow, Mohamed Houssem Harbi, Steffen Pracht, Jasser Rahmatyan
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Patent number: 11690968Abstract: A breathing air supply system (200) is configured to be carried by a person (300) and includes a breathing air supply device (130), a fastening device (1) for the breathing air supply device (130) and a vital parameter sensor (30.1). The vital parameter sensor (30.1) is mounted in or at a back section (22) belonging to a fastening section (20) of the fastening device (1). The vital parameter sensor (30.1) is configured to contactlessly measure a vital parameter of a user (300) of the breathing air supply system (200).Type: GrantFiled: May 1, 2020Date of Patent: July 4, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Achim Volmer, Alexander Korff
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Patent number: 11680562Abstract: A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).Type: GrantFiled: December 21, 2016Date of Patent: June 20, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Hans-Ullrich Hansmann
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Patent number: 11672937Abstract: A cooling element for use within a cooling device of a closed-circuit respirator, includes an element housing, which has a liquid-tight cap and is filled with a coolant, which has a melting point below 50° C., especially below 45° C., preferably below 40° C. A sensor element is arranged in contact with the coolant within the element housing such that the sensor element can be moved in a direction of the gravity acting on the sensor element in the liquid state of the coolant during the use of the closed-circuit respirator by a user of the closed-circuit respirator.Type: GrantFiled: December 17, 2019Date of Patent: June 13, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Henning Gerder
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Patent number: 11668669Abstract: An electrochemical gas sensor measures gaseous components in an air/gas mixture. A measuring electrode and a counterelectrode, with an electrolyte located therebetween, are arranged in the sensor housing. A diffusion barrier is configured to set a gas flow of the gas intended for the concentration determination to the measuring electrode from a surrounding area. The diffusion barrier is located in the sensor housing. At least one gas-permeable, hydrophobic pressure absorption element covers the diffusion barrier and is provided between the diffusion barrier and the measuring electrode, in the interior of the sensor housing and on an inner surface of the sensor housing. The inner surface has a mean roughness depth Rz that is lower than or equal to 2 ?m at least in an area on which the pressure absorption element lies.Type: GrantFiled: March 21, 2017Date of Patent: June 6, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Rigobert Chrzan, Rolf Eckhardt, Andreas Nauber, Susanne Schaefer, Michael Sick
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Patent number: D992214Type: GrantFiled: February 19, 2021Date of Patent: July 11, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Lennart Wenzel
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Patent number: D992215Type: GrantFiled: February 19, 2021Date of Patent: July 11, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Lennart Wenzel
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Patent number: D992216Type: GrantFiled: February 19, 2021Date of Patent: July 11, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Lennart Wenzel
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Patent number: D992827Type: GrantFiled: February 19, 2021Date of Patent: July 18, 2023Assignee: Dräger Safety AG & Co. KGaAInventor: Lennart Wenzel