# US 11,079,029 B2 · Check valve element for a check valve assembly and corresponding check valve assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,079,029 B2 - Document ID: US11079029B2 - Status: Granted - Kind: B2 - Application number: 16/763,761 - Filed: 2018-10-18 - Published: 2021-06-10 - Granted: 2021-08-03 - Earliest claimed: 2017-11-14 - Assignees: Audi AG - Applicants: Audi AG - Inventors: Peter Schlegelmilch - Web page: https://patentgrep.com/patent/US11079029B2 ## CPC - F16K 15/144: {the closure elements being fixed along all or a part of their periphery} - F16K 15/023: {the valve member consisting only of a predominantly disc-shaped flat element} - F16K 15/025: {the valve being loaded by a spring (F16K15/03 - F16K15/12 take precedence)} - F16K 15/028: {the valve member consisting only of a predominantly disc-shaped flat element} - Y10T 137/6086: Assembling or disassembling check valve - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A resiliently mounted valve body has a sealing face and, by way of spring arms, is resiliently-elastically connected to a holding ring which encompasses the valve body in at least one position, so that the valve body is repositionable in a parallel manner in the axial direction. The holding ring is in one piece with and materially integral to a latching body for fastening a check valve element in a latching manner in a fluid-conducting installation of a check valve assembly. The latching body extends in the axial direction, facing away from the valve body, and has at least one latching protrusion which is resiliently-elastically repositionable in the radial direction. ## Claims ### Claim 1 A check valve element for a check valve assembly in a fluid-conducting installation, comprising: a valve body resiliently-elastically mounted in the check valve element, formed of sheet metal, having a sealing face; a holding ring substantially surrounding the valve body in at least one position; helical spring arms, resiliently-elastically connected to the holding ring and the valve body, the valve body being repositionable in a parallel manner in an axial direction of at least one of the valve body and the holding ring, the spring arms formed as one piece with and materially integral to the valve body and the holding ring; and a latching body configured to fasten the check valve element in a latching manner in the fluid-conducting installation of the check valve assembly, the latching body formed as one piece with and materially integral to the holding ring by a curved transition region transitioning the latching body to the holding ring, the latching body extending along the axial direction in an opposing direction facing away from the valve body and having at least two latching protrusions resiliently-elastically repositionable in a radial direction, each latching protrusion separated in the circumferential direction by a gap in the latching body, the latching body being peripherally open in the opposing direction facing away from the holding ring. ### Claim 2 (depends on 1) The check valve element as claimed in claim 1, wherein the latching body at least in regions is cylindrical. ### Claim 3 (depends on 2) The check valve element as claimed in claim 2, wherein the latching protrusion is disposed on a side of the latching body facing away from the holding ring. ### Claim 4 (depends on 3) The check valve element as claimed in claim 3, wherein the latching protrusion is a curved region of the latching body curved outward in the radial direction. ### Claim 5 (depends on 4) The check valve element as claimed in claim 4, wherein the curved region of the latching body, when viewed in the axial direction, adjoins a cylindrical region of the latching body. ### Claim 6 (depends on 2) The check valve element as claimed in claim 2, wherein the latching body, when viewed in the axial direction, adjoins a cylindrical region of the latching body. ### Claim 7 (depends on 6) The check valve element as claimed in claim 6, wherein the spring arms are configured by punching, and the latching body is configured by deep-drawing. ### Claim 8 (depends on 1) The check valve element as claimed in claim 1, wherein the latching protrusion is disposed on a side of the latching body facing away from the holding ring. ### Claim 9 (depends on 1) The check valve element as claimed in claim 1, wherein the latching protrusion is a region of the latching body curved outward in the radial direction. ### Claim 10 A check valve assembly, comprising: a check valve element formed of sheet metal, including a valve body resiliently-elastically mounted in the check valve element, having a sealing face; a holding ring substantially surrounding the valve body in at least one position; helical spring arms, resiliently-elastically connected to the holding ring and the valve body, the valve body being repositionable in a parallel manner in an axial direction of at least one of the valve body and the holding ring, the spring arms formed as one piece with and materially integral to the valve body and the holding ring; and a latching body configured to fasten the check valve element in a latching manner in the fluid-conducting installation of the check valve assembly, the latching body, formed as one piece with and materially integral to the holding ring by a curved transition region transitioning the latching body to the holding ring, the latching body extending along the axial direction in an opposing direction facing away from the valve body, and having at least two latching protrusions resiliently-elastically repositionable in a radial direction, each latching protrusion separated in the circumferential direction by a gap in the latching body, the latching body being peripherally open in the opposing direction facing away from the holding ring. ### Claim 11 (depends on 10) The check valve assembly as claimed in claim 10, wherein the latching body at least in regions is cylindrical. ### Claim 12 (depends on 11) The check valve assembly as claimed in claim 11, wherein the latching protrusion is disposed on a side of the latching body facing away from the holding ring. ### Claim 13 (depends on 12) The check valve assembly as claimed in claim 12, wherein the latching protrusion is a curved region of the latching body curved outward in the radial direction. ### Claim 14 (depends on 13) The check valve assembly as claimed in claim 13, wherein the curved region of the latching body, when viewed in the axial direction, adjoins a cylindrical region of the latching body. ### Claim 15 (depends on 10) The check valve assembly as claimed in claim 10, wherein the latching body, when viewed in the axial direction, adjoins a cylindrical region of the latching body. ### Claim 16 (depends on 15) The check valve assembly as claimed in claim 15, wherein the spring arms are configured by punching, and the latching body is configured by deep-drawing. ### Claim 17 (depends on 10) The check valve assembly as claimed in claim 10, wherein the latching protrusion is disposed on a side of the latching body facing away from the holding ring. ### Claim 18 (depends on 10) The check valve assembly as claimed in claim 10, wherein the latching protrusion is a region of the latching body curved outward in the radial direction.