# US 11,906,327 B2 · Sensor holder for a flow sensor and method for maintenance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,327 B2 - Document ID: US11906327B2 - Status: Granted - Kind: B2 - Application number: 17/658,460 - Filed: 2022-04-08 - Published: 2022-10-20 - Granted: 2024-02-20 - Earliest claimed: 2021-04-14 - Assignees: Endress+Hauser Conducta GmbH+Co. KG - Applicants: Endress+Hauser Conducta GmbH+Co. KG - Inventors: Alejandro Vaca Torres; Michael Wiederkehr; Andreas Müller; Ralf Bernhard - Web page: https://patentgrep.com/patent/US11906327B2 ## CPC - G01D 11/245: {Housings for sensors} - B08B 5/02: Cleaning by the force of jets, e.g. blowing-out cavities {(airguns or nozzles per se B05B1/005)} - G01D 11/30: Supports specially adapted for an instrument; Supports specially adapted for a set of instruments - G01F 15/18: Supports or connecting means for meters - G01N 21/6408: {with measurement of decay time, time resolved fluorescence} - G01N 2021/6417: {Spectrofluorimetric devices} - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL - G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME - 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 The present disclosure discloses a sensor holder for a flow sensor, comprising a substantially cylindrical housing with a housing interior with an opening at a first front face. The opening is designed to receive the flow sensor. The housing at the second front face, which is opposite the first front face, is conical. A first flushing opens to the housing interior, where the opening opens into the end region of the cone, and a second flushing opens to the housing interior. A fastening unit is designed to fasten the flow sensor in the housing, and a first wall holder is designed to be fastened to a wall. The first wall holder comprises a joint in the region of the second front face, with the joint connecting to the housing. The housing can be moved via the joint from a measurement position into a maintenance position. ## Claims ### Claim 1 A sensor holder for a flow sensor, comprising a substantially cylindrical housing with a housing interior, including: an opening at a first front face, which is designed to receive the flow sensor, wherein the housing at the second front face is conical, a first flushing opening to the housing interior, which opening opens into the end region of the cone, and a second flushing opening to the housing interior, a fastening unit, which is designed to fasten the flow sensor in the housing, and a first wall holder, which is designed to be fastened to a wall, wherein the first wall holder comprises a joint, which is connected to the housing in the region of the second front face, wherein the housing can be moved via the joint from a measurement position into a maintenance position. ### Claim 2 (depends on 1) The sensor holder of claim 1, comprising: a second wall holder, which is designed to be fastened to a wall; wherein the second wall holder is arranged at an offset from the first wall holder; wherein the second wall holder comprises a receptacle for the flow sensor. ### Claim 3 (depends on 1) The sensor holder of claim 1, wherein the first wall holder comprises a buffer, which brakes a movement of the housing from the measurement position into the maintenance position. ### Claim 4 (depends on 1) The sensor holder of claim 1, wherein the first wall holder with the joint, with the second wall holder, is designed such that the longitudinal axis of the housing is arranged at an angle of ≥5° between 5° and 20° to the vertical. ### Claim 5 (depends on 1) The sensor holder of claim 1, including: a cleaning opening to the housing interior, which opening is arranged such that it is directed onto the sensitive region of the flow sensor in the installed state thereof. ### Claim 6 (depends on 1) The sensor holder of claim 1, wherein the fastening unit is a union nut, and the housing has a corresponding external thread in the region of the first front face. ### Claim 7 (depends on 1) The sensor holder of claim 1, including: a holding piece, which is designed to be fixed to or around the flow sensor, wherein the holding piece is designed to be attached to the housing at the first front face, wherein the fastening unit engages in the holding piece and prevents a movement of the flow sensor installed in the sensor hold. ### Claim 8 (depends on 1) The sensor holder of claim 1, wherein the holding piece comprises a collar, wherein the union nut is supported on the collar, thereby pressing the holding piece onto the housing and preventing a movement of the flow sensor. ### Claim 9 (depends on 1) The sensor holder of claim 1, includes: a sealing element, which is designed to prevent a flow of medium from the housing interior to the outside, wherein the housing has a groove in the region of the first front face, into which groove the sealing element can be inserted. ### Claim 10 (depends on 1) The sensor holder of claim 1, wherein the sealing element is annular and comprises a first O-ring on its inner side and a second O-ring on its outer side. ### Claim 11 (depends on 1) The sensor holder of claim 1, whrein the flow sensor for determining the oil-in-water content, turbidity sensor, oxygen sensor. ### Claim 12 A method for maintaining a flow sensor in a sensor holder according to one of the preceding claims, comprising the following steps: moving the housing via the joint from the measurement position into the maintenance position, releasing the fastening unit; removing the holding piece with the flow sensor attached thereto from the housing interior; removing the sealing element; cleaning or replacing the sealing element; cleaning the housing interior, and cleaning the first and/or second flushing openings; cleaning the holding piece and cleaning the flow sensor; attaching the sealing element; attaching the holding piece together with the flow sensor; attaching the fastening unit; and moving the housing into the measurement position.