http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0050601-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D99-00 |
| filingDate | 1981-09-30^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1984-06-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1984-06-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0050601-B1 |
| titleOfInvention | Ear plug as well as a method and apparatus for the production thereof |
| abstract | PCT No. PCT/SE81/00283 Sec. 371 Date May 20, 1982 Sec. 102(e) Date May 20, 1982 PCT Filed Sep. 30, 1981 PCT Pub. No. WO82/01312 PCT Pub. Date Apr. 29, 1982.The ear plug (40) includes an elongate body with a rounded tip portion and of an elastic material enveloped by a deep-drawn sheath (41) of thin flexible plastics film material. Rearwardly the plug preferably has a neck portion from which the sheath projects in the form of a stiffer collar or flange. Production of the ear plug includes deep-drawing a thermoplastic film or foil into a sheath with desired thickness distribution, and filling the sheath with elastic material (53). Filling may take place simultaneously with deep-drawing, the body of elastic material constituting a die for deep-drawing in a forming hole (45), or after the deep-drawing. In the latter case, an elastic die body is used to advantage, the shape of which generally corresponds to that of the finished plug, for deep-drawing in a forming hole suited to the die body. |
| priorityDate | 1980-10-22^^<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/compound/CID12901 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID226395760 |
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