# US 9,435,781 B2 · Gas detection device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,435,781 B2 - Document ID: US9435781B2 - Status: Granted - Kind: B2 - Application number: 14/614,710 - Filed: 2015-02-05 - Published: 2015-08-13 - Granted: 2016-09-06 - Earliest claimed: 2014-02-08 - Assignees: Dräger Safety AG & Co. KGaA - Applicants: Dräger Safety AG & Co. KGaA - Inventors: Wilfried Diekmann - Web page: https://patentgrep.com/patent/US9435781B2 ## CPC - G01N 33/0073: {Control unit therefor} - G01N 21/01: Arrangements or apparatus for facilitating the optical investigation - G01N 21/3504: for analysing gases, e.g. multi-gas analysis - G01N 21/55: Specular reflectivity - G01N 33/0027: {concerning the detector} - G01N 2021/3513: {Open path with an instrumental source} - G01N 2201/02: Mechanical - G01N 2201/021: Special mounting in general - G01N 2201/061: Sources - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract A gas detection device with at least one functional device (1), which is fixed to a platform, is pivotable about at least two pivot axes (2, 3) relative to the platform. The functional device (1) is designed to emit and/or receive or reflect radiation that is analyzably variable due to the presence of a gas to be detected. The gas detection device has an adjusting device (9), which has a fixing device for temporary fixation to the platform and an application device for the defined application on the functional device (1) of forces that lead to a pivoting about the pivot axes (2, 3). The application device acts detachably on the functional device (1). ## Claims ### Claim 1 A gas detection device comprising: a platform; a functional device fixed pivotably to the platform for pivoting about at least two pivot axes relative to the platform, said pivot axes being oriented perpendicularly to one another, the functional device comprising at least one of a radiation emitter, a radiation receiver and a radiation reflector, the radiation varying in an analyzable manner due to a presence of a detectable gas; and an adjusting device comprising a fixing device for a temporary fixation to the platform and an application device for a defined application of forces to the functional device that lead to a pivoting about the pivot axes, said application device releasably engaging said functional device, said application device comprising a first adjusting element and a second adjusting element, said first adjusting element and said second adjusting element being configured such said first adjusting element generates a first adjusting line of generated force application in a direction perpendicular to one of said pivot axes and said second adjusting element generates a second adjusting element line of generated force application in a direction perpendicular to another one of said pivot axes. ### Claim 2 (depends on 1) A gas detection device in accordance with claim 1, wherein the functional device is a first functional device and further comprising a second functional device wherein the first functional device comprises a radiation emitter and the second functional device comprises a radiation receiver, which are each fixed on a respective platform. ### Claim 3 (depends on 1) A gas detection device in accordance with claim 1, wherein the functional device comprises radiation emitter and receiver; and further comprising a reflector positioned independently from the functional device. ### Claim 4 (depends on 1) A gas detection device in accordance with claim 1, wherein: the application devices designed such that said first adjusting line of generated force application is located at a distance between 10 mm and 300 mm from said one of said pivot axes and said second adjusting line of generated force application is located at a distance between 10 mm and 300 mm from the another one of said pivot axes. ### Claim 5 (depends on 1) A gas detection device in accordance with claim 1, wherein the application device comprises a first carriage guided displaceably by said first adjusting element in a stand and a second carriage guided displaceably by said second adjusting element on the first carriage, said first adjusting element being adjustable independent of movement of said second adjusting element and said second adjusting element being adjustable independent of movement of said first adjusting element. ### Claim 6 (depends on 1) A gas detection device in accordance with claim 1, wherein the adjusting device comprise at least said first adjusting element and said second adjusting element acting on opposite sides of the functional device. ### Claim 7 (depends on 1) A gas detection device in accordance with claim 1, wherein the application device comprise said first adjusting element and said second adjusting element in the form of at least one of adjusting screws and adjusting actuators. ### Claim 8 (depends on 1) A gas detection device in accordance with claim 1, further comprising a control device for determining an adjusting deviation from a desired orientation of the functional device. ### Claim 9 (depends on 8) A gas detection device in accordance with claim 8, wherein: the application device comprise adjusting actuators; and the control device is connected with the adjusting actuators of the application device in a signal-carrying manner to orient the functional device automatically as a function of an adjusting deviation determined. ### Claim 10 A gas detection device comprising: a functional device comprising at least one of a radiation emitter, a radiation receiver and a radiation reflector, the radiation varying in an analyzable manner due to a presence of a detectable gas; a pivot mount arrangement mounting the functional device pivotably to a support platform for pivoting about at least two pivot axes relative to the platform; and an adjusting device comprising a fixing device for a temporary fixation of the adjusting device relative to the platform and an application device for a defined application of forces to the functional device that lead to a pivoting of the functional device about the pivot axes, said pivot axes being directed at right angles to one another, said application device comprising a first adjusting element and a second adjusting element, said first adjusting element being configured to apply a first adjusting element force to the functional device with a first adjusting element line generated force application that is perpendicular to one of said pivot axes, said second adjusting element being configured to apply a second adjusting element force to the functional device with a second adjusting element line generated force application that is perpendicular to another one of said pivot axes. ### Claim 11 (depends on 10) A gas detection device in accordance with claim 10, wherein the functional device is a first functional device and further comprising: a second functional device comprising at least one of a radiation emitter, a radiation receiver and a radiation reflector, the radiation varying in an analyzable manner due to a presence of a detectable gas; and a second pivot mount arrangement fixing the second functional device pivotably to a support platform for pivoting about at least two pivot axes relative to the platform. ### Claim 12 (depends on 11) A gas detection device in accordance with claim 11, wherein: the first functional device comprises a radiation emitter and a radiation receiver; and the second functional device comprises a reflector positioned independently from the first functional device. ### Claim 13 (depends on 10) A gas detection device in accordance with claim 10, wherein: the first adjusting element line generated force application is located at a distance between 10 mm and 300 mm from said one of said pivot axes and said second adjusting element line generated force application is located at a distance between 10 mm and 300 mm from said another one of said pivot axes. ### Claim 14 (depends on 10) A gas detection device in accordance with claim 10, wherein the application device comprises: a first carriage guided displaceably by the first adjusting element in a stand, said first adjusting element and said second adjusting element being movable independent of movement of each other; and a second carriage guided displaceably by the second adjusting element on the first carriage, said second carriage being movable independent of movement of said first carriage, said first carriage being movable independent of movement of said second carriage. ### Claim 15 (depends on 14) A gas detection device in accordance with claim 14, further comprising a control device wherein: the first adjusting element comprises a first adjusting actuator; the second adjusting element comprises a second adjusting actuator; the control device controls the first adjusting actuator and the second adjusting actuator for a controlled orientation of the functional device. the control device is connected with the adjusting actuators of the application device in a signal-carrying manner. ### Claim 16 (depends on 15) A gas detection device in accordance with claim 15, wherein the control device is configured to determine an adjusting deviation from a desired orientation of the functional device and to generate control signals to orient the functional device automatically as a function of an adjusting deviation determined. ### Claim 17 (depends on 10) A gas detection device in accordance with claim 10, wherein the application device comprise said first adjusting element and said second adjusting element in the form of at least one of adjusting screws and adjusting actuators. ### Claim 18 (depends on 10) A gas detection device in accordance with claim 10, further comprising: a bearing support structure comprising an inner bearing support structure surface and an outer bearing support structure surface; a first plurality of first bearings, each of said first plurality of first bearings being arranged between said inner bearing support structure surface and said functional device; a second plurality of second bearings; a first support element, one of said second bearings being arranged between said first support element and said outer bearing support structure surface; a second support element, another one of said second bearing being arranged between said second support element and said outer bearing support structure surface. ### Claim 19 (depends on 1) A gas detection device in accordance with claim 1, wherein the application device comprises: a first carriage guided displaceably by the first adjusting element in a stand, said first adjusting element being movable independent of movement of said second adjusting element, said second adjusting element being movable independent of movement of said first adjusting element; and a second carriage guided displaceably by the second adjusting element on the first carriage, said second carriage being movable in a direction of said functional element and in a direction away from said functional element independent of movement of said first carriage, said first carriage being movable independent of movement of said second carriage. ### Claim 20 (depends on 1) A gas detection device in accordance with claim 1, further comprising: a bearing support structure comprising an inner bearing support structure surface and an outer bearing support structure surface; a first plurality of first bearings, each of said first plurality of first bearings being arranged between said inner bearing support structure surface and said functional device; a second plurality of second bearings; a first support element, one of said second bearings being arranged between said first support element and said outer bearing support structure surface; a second support element, another one of said second bearing being arranged between said second support element and said outer bearing support structure surface.