http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-0111935-A
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2514260d4538aac906ff308b36be8bd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f3273c351ed0666d135ff0697ab91234 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cb9fdc1ddbedf5fa0509cbcc7cfc0a24 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2450-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2490-15 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D04H3-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N1-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N1-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N1-006 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N1-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N1-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D04H3-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02B77-11 |
| filingDate | 2001-07-11^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e972de3c61bc8420fbe7b7584a1de950 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43df2bccfd576b13e52a4c5fd700fde9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_afdd5268d9bf96e68c506a878feccc91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc923c96be75aeea788ce90c1e274ec2 |
| publicationDate | 2003-06-17^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-0111935-A |
| titleOfInvention | Fiber-filled multi-layer sound absorber and a method for making the same |
| abstract | "MULTI-LAYER SOUND ABSORBER Filled with FIBER AND A METHOD FOR MANUFACTURING IT". A fiber-filled multilayer sound absorber 100 and a method for making the absorber are disclosed. The sound absorber includes an outer housing (110), a porous or perforated inner housing or tube (120) defining a passageway (126) through which a gas can flow and two layers of sound-absorbing material such as carbon wool. fiberglass, are positioned between the housings. The sound absorbing material (150) adjacent to the inner housing is selected to be more heat resistant than the material (152) farthest from the inner housing. The sound absorber is filled with the sound absorbing materials using a direct filling process in which continuous fibers 212 are injected into the sound absorber. In preparation for filling, a partition (130) is positioned between the housings to define two chambers (140, 142). Each chamber is filled with one of the sound absorbing materials. The partition may then be removed from the sound absorber, or may be left in place (in which case the partition is preferably porous or perforated). The two sound absorbing materials can be filled with different densities. If the partition is removed, the densities will tend to match. The direct filling process simplifies and reduces the cost of filling the container and provides a muffler that is uniformly filled and has a filled form absorption quality and an improved sound absorption quality. |
| priorityDate | 2000-07-18^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559581 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID297 |
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