# US 2013/0152579 A1 · Assembly made of a compensating tank and a master cylinder for a hydraulic motor vehicle brake system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152579 A1 - Document ID: US20130152579A1 - Status: Published application - Kind: A1 - Application number: 13/384,851 - Filed: 2010-07-01 - Published: 2013-06-20 - Earliest claimed: 2009-07-27 - Assignees: Continental Teves AG & Co. oHG - Inventors: Hans-Jürgen Neumann; Peter Tandler; Stephan Schlicht - Web page: https://patentgrep.com/patent/US20130152579A1 ## CPC - B60T 11/22: characterised by being integral with reservoir - B60T 11/26: Reservoirs (integral with master controls B60T11/22) - B60T 17/06: Applications or arrangements of reservoirs - F16B 13/0816: {with a wedging drive-pin} - F16B 5/0642: {the plates being arranged one on top of the other and in full close contact with each other} - F16B 21/086: {the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion} - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract The invention relates to an assembly made of a compensating tank and a master cylinder for a hydraulic motor vehicle brake system, wherein the compensating tank has two fastening attachments, each with an opening, wherein openings align with an opening in the master cylinder, and the compensating tank is fastened by a detachable connection by a fastening pin that extends through the aligned openings. In order to improve the installation and possible dismantling of the fastening pin, and at the same time to maintain an optimized assembly weight, the invention proposes that the fastening pin be made of plastic and interact in a positive- or force-locking manner with at least one of the openings of the fastening attachments. ## Claims ### Claim at position 1 -15. (canceled) ### Claim 16 An assembly comprising a compensating reservoir and a master cylinder for a hydraulic motor vehicle brake system, wherein the compensating reservoir has two fastening lugs, each with an opening, wherein the openings are in alignment with an opening in the master cylinder, and the compensating reservoir is fastened by way of a releasable connection by a fastening pin, which extends through the aligned openings, wherein the fastening pin is made of plastic and interacts positively or nonpositively with at least one of the openings in the fastening lugs. ### Claim 17 (depends on 16) The assembly as claimed in claim 16, wherein the fastening pin has a head flange at a first end for the purpose of resting against one of the fastening lugs. ### Claim 18 (depends on 17) The assembly as claimed in claim 17, wherein the fastening pin has one or more latching elements, which interacts positively with at least one of the openings. ### Claim 19 (depends on 18) The assembly as claimed in claim 18, wherein the openings in the fastening lugs each have a recess on an inner side, into which recess one or more latching noses on the fastening pin engage after the installation thereof. ### Claim 20 (depends on 18) The assembly as claimed in claim 18, wherein the fastening pin has, at the second end thereof, one or more resilient latching arms, which engage on one of the fastening lugs after its installation. ### Claim 21 (depends on 20) The assembly as claimed in claim 20, wherein the latching arms are designed in such a way that they are pressed together resiliently during installation and removal. ### Claim 22 (depends on 18) The assembly as claimed in claim 18, wherein the fastening pin has resilient spiral latching elements at its second end. ### Claim 23 (depends on 16) The assembly as claimed in claim 16, wherein the fastening pin comprises means for wedging in the opening in the master cylinder in a central section. ### Claim 24 (depends on 23) The assembly as claimed in claim 23, wherein the fastening pin is provided with a convexity in the central section and has an axially oriented slot. ### Claim 25 (depends on 23) The assembly as claimed in claim 23, wherein the fastening pin has axially oriented projections in the central section. ### Claim 26 (depends on 17) The assembly as claimed in claim 17, wherein the fastening pin has, at a second end thereof, a thread- or fir tree-shaped profile which can be wedged in the openings in the fastening lugs. ### Claim 27 (depends on 17) The assembly as claimed in claim 17, wherein the fastening pin has, at a second end thereof, a thread- or fir tree-shaped profile which interacts with a complementary profile in the openings in the fastening lugs. ### Claim 28 (depends on 16) The assembly as claimed in claim 16, wherein the fastening pin is made from a harder plastic than the compensating reservoir. ### Claim 29 (depends on 16) The assembly as claimed in claim 16, wherein the fastening pin is made from glass-reinforced polyamide. ### Claim 30 An assembly comprising a compensating reservoir and a master cylinder for a hydraulic motor vehicle brake system, wherein the compensating reservoir has two fastening lugs, each with an opening, wherein the openings are in alignment with an opening in the master cylinder, and the compensating reservoir is fastened by way of a releasable connection by a fastening pin, which extends through the aligned openings, wherein the fastening pin has, at a first end, a head flange for the purpose of resting against one of the fastening lugs, and, on the head flange, has two resilient projections, which engage in recesses on an outer side of the fastening lugs after installation.