# US 10,309,480 B2 · Hydraulic damper for a mount assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,480 B2 - Document ID: US10309480B2 - Status: Granted - Kind: B2 - Application number: 15/682,888 - Filed: 2017-08-22 - Published: 2018-03-01 - Granted: 2019-06-04 - Earliest claimed: 2016-08-29 - Assignees: ContiTech USA, Inc. - Applicants: Cooper-Standard Automotive Inc. - Inventors: Curtis Snyder; Eric Gueno - Web page: https://patentgrep.com/patent/US10309480B2 ## CPC - F16F 13/085: {characterised by features of plastics springs; Attachment arrangements} - F16F 9/49: Stops limiting fluid passage, e.g. hydraulic stops {or elastomeric elements inside the cylinder which contribute to changes in fluid damping (fluid-actuated displacement devices with means for accelerating or decelerating the stroke F15B15/22)} - F16F 13/103: {characterised by method of assembly, production or treatment} - F16F 15/022: {using dampers and springs in combination} - F16F 15/0275: {Control of stiffness} - B62D 24/02: Vehicle body, not intended to move relatively to the vehicle frame, and mounted on vibration absorbing mountings, e.g. rubber pads - B62D 25/088: {Details of structures as upper supports for springs or dampers} - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) ## Abstract A hydraulic damper for a mount assembly includes a housing and a subassembly. The housing defines a cavity and is integrally formed to include a plurality of retention features. The subassembly is at least partially disposed in the cavity and is secured relative to the housing by the plurality of retention features. At least one of the plurality of retention features and the subassembly is elastically deformable in a radial direction from an initial diameter to an elastically deformed diameter such that the subassembly is sized to axially pass by the plurality of retention features in the initial diameter for insertion of the subassembly into the housing and the plurality of retention members radially extend over the subassembly in the elastically deformed diameter to secure the subassembly relative to the housing. ## Claims ### Claim 1 A hydraulic damper for a mount assembly, the hydraulic damper comprising: a housing defining a cavity, the housing integrally formed to include a plurality of retention features and a step; and a subassembly at least partially disposed in the cavity and secured relative to the housing by the plurality of retention features, the subassembly including a washer, an inertia track circumferentially surrounding the washer, a compliance member circumferentially surrounding the inertia track, the compliance member being elastically deformable in the radial direction, and a rigid outer sidewall having an upper end and a lower end, the rigid outer sidewall bonded to the compliance member; wherein at least one of the plurality of retention features and the subassembly is elastically deformable in a radial direction from an initial diameter to an elastically deformed diameter such that the subassembly is sized to axially pass by the plurality of retention features for insertion of the subassembly into the housing, wherein the lower end of the rigid outer sidewall of the subassembly is adjacent to the step and the plurality of retention features radially extend over the upper end of the rigid outer sidewall of the subassembly to secure the subassembly relative to the housing. ### Claim 2 (depends on 1) A method of assembling the hydraulic damper of claim 1, the method comprising: elastically deforming one of the plurality of retention features and the subassembly with a radially directed force from the initial diameter to the elastically deformed diameter; inserting the subassembly into the housing axially past the plurality of retention features; and removing the radially directed force to positioning the plurality retention features axially over the subassembly. ### Claim 3 (depends on 2) The method of claim 2, wherein the subassembly includes a compliance member and elastically deforming one of the plurality of retention features and the subassembly includes elastically deforming the compliance member of the subassembly. ### Claim 4 (depends on 2) The method of claim 2, wherein elastically deforming one of the plurality of retention features and the subassembly includes elastically deforming the plurality of retention features. ### Claim 5 (depends on 2) The method of claim 2, wherein elastically deforming one of the plurality of retention features and the subassembly includes elastically deforming the subassembly. ### Claim 6 (depends on 1) The hydraulic damper of claim 1, further comprising: a further plurality of retention features; and a further subassembly at least disposed in the cavity and secured relative to the housing by the further plurality of retention features; wherein the further subassembly includes a shaft, a further compliance member circumferentially surround the shaft, and an end cap carried at a radially outer portion of the further compliance member, the further compliance member being elastically deformable in the radial direction. ### Claim 7 (depends on 6) The hydraulic damper of claim 6, wherein the further plurality of retention features includes a plurality of axially extending fingers axially extending from a sidewall of the housing. ### Claim 8 (depends on 6) The hydraulic damper of claim 6, wherein the further subassembly includes a shaft, a compliance member circumferentially surround the shaft, and an end cap carried at a radially outer portion of the compliance member, the compliance member being elastically deformable in the radial direction. ### Claim 9 (depends on 1) The hydraulic damper of claim 1, wherein the plurality of retention features is elastically deformable in the radial direction from the initial diameter to the elastically deformed diameter. ### Claim 10 (depends on 9) The hydraulic damper of claim 9, wherein the plurality of retention features each include a radially innermost portion on a first imaginary circle having a first diameter when the plurality of retention features are in the initial diameter and the radially innermost portions are on a second imaginary circle having a second diameter when the plurality of retention features are in the elastically deformed diameter, the subassembly having an outer diameter greater than the first diameter and less than the second diameter. ### Claim 11 (depends on 1) The hydraulic damper of claim 1, wherein the subassembly is elastically deformable in the radial direction from the initial diameter to the elastically deformed diameter. ### Claim 12 (depends on 11) The hydraulic damper of claim 11, wherein the plurality of retention features each include a radially innermost portion on an imaginary circle having an imaginary circle diameter, the initial diameter of the subassembly being greater than the imaginary circle diameter, the elastically deformed diameter of the subassembly being less than the imaginary circle diameter. ### Claim 13 (depends on 1) The hydraulic damper of claim 1, wherein the retention features of the plurality of retention features each includes a lead-in surface and an undercut. ### Claim 14 (depends on 1) The hydraulic damper of claim 1, wherein the plurality of retention features includes a plurality of radial projections inwardly extending from a sidewall of the housing.