# US 8,782,893 B2 · Method for manufacturing a honeycomb-structured object > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,782,893 B2 - Document ID: US8782893B2 - Status: Granted - Kind: B2 - Application number: 13/637,852 - Filed: 2011-03-29 - Published: 2013-02-14 - Granted: 2014-07-22 - Earliest claimed: 2010-03-30 - Assignees: Sumitomo Chemical Company, Limited - Applicants: Kousuke Uoe; Teruo Komori; Masaharu Mori - Inventors: Kousuke Uoe; Teruo Komori; Masaharu Mori - Web page: https://patentgrep.com/patent/US8782893B2 ## CPC - B28B 11/007: {Using a mask for plugging} - F01N 3/0222: {the structure being monolithic, e.g. honeycombs} - Y02T 10/12: Improving ICE efficiencies - Y10T 29/49398: Muffler, manifold or exhaust pipe making - Y10T 29/49625: Openwork, e.g., a truss, joist, frame, lattice-type or box beam - B28B: SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER (foundry moulding B22C; working stone or stone-like material B28D; shaping of substances in a plastic state, in general B29C; making layered products not composed wholly of these substances B32B) - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A method for manufacturing a honeycomb-structured object having a plurality of through holes having ends thereof plugged, including a step of pressing a plugging material against one end surface of a honeycomb-structured object 70 having a plurality of through holes 70a by a plate 20 to fill one ends of the through holes 70a with the plugging material; and a step of protruding a part of a portion in the plate 20 opposed to the one end surface of the honeycomb-structured object 70 toward the one end surface to pull the other part of the portion in the plate 20 opposed to the one end surface of the honeycomb-structured object 70 and the one end surface away from each other. ## Claims ### Claim 1 A method for manufacturing a honeycomb-structured object, the honeycomb-structured object having a plurality of through holes, the plurality of through holes having plugged ends, comprising: pressing a plugging material against one end surface of the honeycomb-structured object using a plate; wherein the pressing of the plate against the one end surface of the honeycomb-structured object fills ends of the through holes with the plugging material; and after the through holes have been filled with the plugging material, protruding a portion of the plate toward the one end surface of the honeycomb-structured object; wherein the protruding of the portion of the plate separates a portion of the plate from the one end surface of the honeycomb-structured object. ### Claim 2 (depends on 1) The method according to claim 1, wherein the portion of the plate that is protruding is a central portion of the plate. ### Claim 3 (depends on 1) The method according to claim 1, wherein a mask is interposed between the one end surface of the honeycomb-structured object and the plate; and wherein the mask includes through holes that communicate with at least one of the plurality of through holes of the honeycomb-structured object. ### Claim 4 (depends on 1) The method according to claim 1, wherein the plate is an elastic plate; and wherein the protruding is performed by deforming the portion of the plate in the form of a raised portion. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: pressing a plugging material against a second end surface of the honeycomb-structured object using the plate; wherein the pressing of the plate against the second end surface of the honeycomb-structured object fills other ends of the through holes with the plugging material; after the second end of the through holes have been filled with the plugging material, protruding a portion of the plate toward the second end surface of the honeycomb-structured object; and wherein the protruding of the portion of the plate separates a portion of the plate from the second end surface of the honeycomb-structured object. ### Claim 6 (depends on 1) The method according to claim 1 further comprising: preparing a main body having a depressed portion and a communication path opening into an inner surface of the depressed portion, wherein the plate is arranged so as to cover the depressed portion, wherein the plate is an elastic plate; removing a fluid that is located within the depressed portion via the communication path in order to deform the elastic plate; wherein the deformation of the elastic plate forms a depressed portion in the elastic plate that conforms in shape to the depressed portion of the main body; supplying the plugging material into the depressed portion of the elastic plate, arranging the one end surface of a honeycomb-structured object having the plurality of through holes at a position opposed to the depressed portion of the elastic plate, and supplying the fluid between the main body portion and the elastic plate via the communication path to eliminate the depressed portion of the elastic plate, and supplying the fluid between the main body portion and the elastic plate via the communication path to deform a portion of the elastic plate in order to form the protruding of the portion of the elastic plate. ### Claim 7 A method for manufacturing a honeycomb-structured object, the honeycomb-structured object having a plurality of through holes, the plurality of through holes having plugged ends, comprising: pressing a plugging material against one end surface of the honeycomb-structured object using an elastic plate; wherein the pressing of the plate against the one end surface of the honey-comb structured object fills ends of the through holes with the plugging material; and after the through holes have been filled with the plugging material, deforming a portion of the elastic plate in the shape of a raised portion that is deformed toward the one end surface of the honeycomb-structured object; wherein the deforming of the portion of the elastic plate pulls a peripheral portion of the elastic plate and a peripheral portion of the one end surface of the honey-comb structured object away from each other. ### Claim 8 A method for manufacturing a honeycomb-structured object, the honeycomb-structured object having a plurality of through holes, the plurality of through holes having plugged ends, comprising: providing a main body portion having a depressed portion and a communication path opening into an inner surface of the depressed portion, and an elastic plate arranged so as to cover the depressed portion; removing a fluid that is located within the depressed portion via the communication path in order to deform the elastic plate; wherein the deformation of the elastic plate forms a depressed portion in the elastic plate that conforms to the shape of the depressed portion of the main body; supplying a plugging material into the depressed portion of the elastic plate; arranging one end surface of a honeycomb-structured object at a position opposed to the depressed portion of the elastic plate; and supplying the fluid between the main body portion and the elastic plate via the communication path to eliminate the depressed portion of the elastic plate and to deform a portion in the elastic plate forming a protruding portion in the elastic plate; wherein the protruding portion of the elastic plate separates a portion of the plate from the one end surface of the honeycomb-structured object.