# US 11,114,219 B2 · Strand leadthrough device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,219 B2 - Document ID: US11114219B2 - Status: Granted - Kind: B2 - Application number: 17/044,363 - Filed: 2019-04-15 - Published: 2021-05-20 - Granted: 2021-09-07 - Earliest claimed: 2018-04-19 - Assignees: Bimed Teknik Aletler Sanayi Ve Ticaret A.S. - Applicants: Bimed Teknik Aletler Sanayi ve Ticaret A.S. - Inventors: Yilmaz Albukrek - Web page: https://patentgrep.com/patent/US11114219B2 ## CPC - H01B 17/303: {Sealing of leads to lead-through insulators} - H02G 3/085: {including knock-out or tear-out sections} - H02G 3/22: Installations of cables or lines through walls, floors or ceilings, e.g. into buildings - H05K 9/0018: {with provisions to reduce aperture leakages in walls, e.g. terminals, connectors, cables} - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A strand leadthrough device for leading a plurality of strands in the form of cables or cable bundles, pipes, and/or tubes through a passage in a wall includes: a frame which is fastenable to an outer side of the wall and encloses at least one clearance through which the strands are led; a first sealing membrane which has a plurality of leadthrough openings through which a strand is led; and a second sealing membrane having a plurality of leadthrough points through which a strand is led. In order to form a leadthrough channel for a strand, in each case one leadthrough point of the second sealing membrane is assigned in each case to one leadthrough opening in the first sealing membrane. In a region of the leadthrough points, the second sealing membrane has elastically deformable sealing lamellae which, in a starting state, lie against one another closing the leadthrough channel. ## Claims ### Claim 1 A strand leadthrough device for leading a plurality of strands in the form of cables or cable bundles, pipes, and/or tubes through a passage in a wall, comprising: a frame which is fastenable to an outer side of the wall and encloses at least one clearance through which the strands are led; a first sealing membrane which has a plurality of leadthrough openings through which a strand is led; and a second sealing membrane having a plurality of leadthrough points through which a strand is led, wherein, in order to form a leadthrough channel for a strand, in each case one leadthrough point of the second sealing membrane is assigned in each case to one leadthrough opening in the first sealing membrane, and wherein, in a region of the leadthrough points, the second sealing membrane has elastically deformable sealing lamellae which, in a starting state, lie against one another closing the leadthrough channel and, in a deformed use state, lie against a strand which is led through the leadthrough channel. ### Claim 2 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein the sealing lamellae are bounded by slots in the second sealing membrane. ### Claim 3 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein the sealing lamellae are identical in size and/or are arranged distributed regularly, as seen in a circumferential direction. ### Claim 4 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein the second sealing membrane is comprised of an elastomer. ### Claim 5 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein the second sealing membrane has a minimum thickness of 2 mm and/or a maximum thickness of 5 mm. ### Claim 6 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein the first sealing membrane is comprised of a rubberized fabric. ### Claim 7 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein the first sealing membrane is connected in an integrally bonded manner to the frame. ### Claim 8 (depends on 1) The strand leadthrough device as claimed in claim 1, wherein center points of the leadthrough openings of the first sealing membrane, which leadthrough openings are in each case assigned to one another in order to form a leadthrough channel for a strand, and center points of the leadthrough points of the second sealing membrane are arranged on an imaginary axis oriented perpendicular to the outer side of the wall. ### Claim 9 (depends on 1) The strand leadthrough device as claimed in claim 1, further comprising a stabilizing layer is provided arranged between first sealing membrane and second sealing membrane and which has a plurality of passage openings through which a strand is led. ### Claim 10 (depends on 9) The strand leadthrough device as claimed in claim 9, further comprising a stabilizing frame arranged on a side of the second sealing membrane which faces away from the stabilizing layer, and which has a plurality of frame openings. ### Claim 11 (depends on 10) The strand leadthrough device as claimed in claim 10, wherein a diameter of the frame openings of the stabilizing frame is equal to 0.8 to 1.2 times a sum of a maximum diameter of a strand to be led through and twice a thickness of the second sealing membrane. ### Claim 12 (depends on 10) The strand leadthrough device as claimed in claim 10, wherein the stabilizing frame has latching portions configured to contact in a latching manner against an inner side of the wall. ### Claim 13 (depends on 1) The strand leadthrough device as claimed in claim 1, further comprising at least one fire protection layer. ### Claim 14 (depends on 1) The strand leadthrough device as claimed in claim 1, further comprising a shielding apparatus. ### Claim 15 (depends on 2) The strand leadthrough device as claimed in claim 2, wherein the slots, which are assigned to a respective leadthrough point, run radially outward from a center point of the respective leadthrough point. ### Claim 16 (depends on 4) The strand leadthrough device as claimed in claim 4, wherein the elastomer comprises a polyurethane gel. ### Claim 17 (depends on 7) The strand leadthrough device as claimed in claim 7, wherein the first sealing membrane is connected in an integrally bonded manner to the frame by an adhesive connection. ### Claim 18 (depends on 9) The strand leadthrough device as claimed in claim 9, wherein the plurality of passage openings corresponds to a number of leadthrough openings of the first sealing membrane. ### Claim 19 (depends on 10) The strand leadthrough device as claimed in claim 10, wherein the plurality of frame openings corresponds to a number of leadthrough openings of the first sealing membrane. ### Claim 20 A strand leadthrough device for leading a plurality of strands in the form of cables or cable bundles, pipes, and/or tubes through a passage in a wall, comprising: a frame which is fastenable to an outer side of the wall and encloses at least one clearance through which the strands are led; a first sealing membrane which has a plurality of leadthrough openings through which a strand is led; a second sealing membrane having a plurality of leadthrough points through which a strand is led; and a shielding apparatus, wherein, in order to form a leadthrough channel for a strand, in each case one leadthrough point of the second sealing membrane is assigned in each case to one leadthrough opening in the first sealing membrane, wherein, in a region of the leadthrough points, the second sealing membrane has elastically deformable sealing lamellae which, in a starting state, lie against one another closing the leadthrough channel and, in a deformed use state, lie against a strand which is led through the leadthrough channel, wherein the shielding apparatus comprises a first contact plate, a second contact plate, and a contact layer arranged between first and second contact plate, wherein the contact layer has a plurality of leadthrough regions through which a strand is led, and wherein, in a region of the leadthrough regions, the contact layer has elastically deformable compact lamellae.