# US 2014/0197606 A1 · Semicorrugated gasket > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197606 A1 - Document ID: US20140197606A1 - Status: Published application - Kind: A1 - Application number: 13/992,104 - Filed: 2012-01-10 - Published: 2014-07-17 - Earliest claimed: 2011-01-12 - Assignees: Carl Freudenberg KG - Inventors: Olivier Jeanne - Web page: https://patentgrep.com/patent/US20140197606A1 ## CPC - F16J 15/02: between relatively-stationary surfaces (F16J15/46, F16J15/48 take precedence) - F16J 15/024: {the packing being locally weakened in order to increase elasticity} - F16J 15/061: {with positioning means (F16J15/0831 takes precedence)} - F16J 15/106: {homogeneous} - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS ## Abstract An elastomer sealing gasket (10) having a length (L) along a contour (C) and a cross section (S) of width (I) and of height (H) considered in a transverse plane (T) perpendicular to said length (L), wherein the cross section (S) has a geometry that is continuously varying along the length (L) of the gasket. ## Claims ### Claim 1 An elastomer sealing gasket (10) with a length (L) following a contour (C) and a cross section (S) with a width (I) and a height (H) in a transverse plane (T) perpendicular to this length (L), wherein the section (S) has a continuously variable geometry in the length (L) of the gasket. ### Claim 2 (depends on 1) Sealing gasket (10) according to claim 1, wherein at least one portion (POR2, POR3) in the height (H) of this gasket has a cross section (S2, S3) with a width (I2, I3) smaller than the width (I) of the gasket and follows a non-linear contour over the length (L) of the gasket, while at least one portion (POR1) in the height H of this gasket follows a linear contour over the length (L) of the gasket. ### Claim 3 (depends on 2) Sealing gasket (10) according to claim 2, wherein it comprises in its height (H): a linear portion POR1 following a linear contour (LIN) over the length (L) of the gasket, and, at least one corrugated portion (POR2, POR3) juxtaposed to the first portion POR1 at this height (H) and following a contour (OND2, OND3) corrugated over the length (L) of the gasket. ### Claim 4 (depends on 3) Sealing gasket (10) according to claim 3, wherein the width (I2, I3) of the cross section (S2, S3) of the corrugated portion (POR2, POR3) is at the most equal to 80% of the width (I1) of the cross section (S1) of the linear portion (POR1). ### Claim 5 (depends on 3) Sealing gasket (10) according to claim 3, wherein the width (I2, I3) of the cross section (S2, S3) of the corrugated portion (POR2, POR3) is at least equal to 20% of the width (I1) of the cross section (S1) of the linear portion (POR1). ### Claim 6 (depends on 3) Sealing gasket (10) according to claim 3, wherein the height (H2, H3) of the cross section (S2, S3) of the corrugated portion (POR2, POR3) is equal at the most to 150% of the height (H1) of the cross section (S1) of the linear portion (POR1). ### Claim 7 (depends on 3) Sealing gasket (10) according to claim 3, wherein at least one lateral face (F2I, F2E, F31, F3E) of the corrugated portion (POR2, POR3) has a relief angle comprised between 0 and 15 degrees. ### Claim 8 (depends on 3) Sealing gasket (10) according to claim 3, wherein the corrugations (22) of the corrugated portion (POR2, POR3) are of a size (A1, A2) greater than or equal to the width (I1) of the cross section (S1) of the linear portion (POR1). ### Claim 9 (depends on 8) Sealing gasket (10) according to claim 8, wherein the corrugations of the corrugated portion (POR2, POR3) are of a size (A1, A2) greater than the width (I1) of the cross section (S1) of the linear portion (POR1) over the entire length (L) of the gasket (10) or in at least one section (26) over the length (L) of the gasket. ### Claim 10 (depends on 3) Sealing gasket (10) according to claim 3, wherein the space (STP1) between two corrugations (22) of the corrugated portion (POR2, POR3) is shorter in at least one section (28) over the length (L) of the gasket than the space (STP0) between two corrugations (22) outside of this section (28). ### Claim 11 (depends on 3) Sealing gasket (10) according to claim 3, wherein the corrugated portion (POR2, POR3) incorporates at least one solid (30) or hollow (32) cylinder inserted between its corrugations (22) in at least one section (34) over the length (L) of the gasket. ### Claim 12 (depends on 3) Sealing gasket (10) according to claim 3, wherein the corrugated contour (OND2, OND3) followed by the corrugations (22) of a corrugated portion (POR2, POR3) is approximately sinusoidal. ### Claim 13 (depends on 3) Sealing gasket (10) according to claim 3, wherein this gasket follows a continuous and closed contour (C). ### Claim 14 (depends on 3) Sealing gasket (10) according to claim 3, wherein at least one lateral face (F1I, F1E) of the linear portion (POR1) is equipped with means of restraint (38). ### Claim 15 (depends on 14) Sealing gasket (10) according to claim 14, wherein the means of restraint (38) takes the shape of a stepped surface (ETA) that is concave (CONC) or convex (CONV). ### Claim 16 (depends on 3) Sealing gasket (10) according to claim 3, wherein the linear portion (POR1) comprises at least one protuberance (40) with a constant contour over the length (L) of the gasket at its lower (42) and/or upper face (44). ### Claim 17 (depends on 3) Sealing gasket (10) according to claim 3, wherein it comprises two corrugated portions (POR2) and (POR3) situated on both sides of the linear portion (POR1) at the height (H) of the gasket with each corrugated portion (POR2, POR3) following a corrugated contour (OND2, OND3) over the length (L) of the gasket. ### Claim 18 (depends on 17) Sealing gasket (10) according to claim 17, wherein the height (H2, H3) and/or the width (I2, I3) of one of the two corrugated portions (POR2, POR3) is greater than the height and/or the width (I2, I3) of the other corrugated portion. ### Claim 19 (depends on 17) Sealing gasket (10) according to claim 17, wherein the corrugations (22) of one corrugated portion are out of phase relative to the corrugations (22) of the other corrugated portion.