CA1221917A - Protege-oreilles et son filtre anti-bruit - Google Patents
Protege-oreilles et son filtre anti-bruitInfo
- Publication number
- CA1221917A CA1221917A CA000454779A CA454779A CA1221917A CA 1221917 A CA1221917 A CA 1221917A CA 000454779 A CA000454779 A CA 000454779A CA 454779 A CA454779 A CA 454779A CA 1221917 A CA1221917 A CA 1221917A
- Authority
- CA
- Canada
- Prior art keywords
- ear
- bore
- filter
- protector
- ear protector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001012 protector Effects 0.000 title claims abstract description 61
- 238000003780 insertion Methods 0.000 claims abstract description 15
- 230000037431 insertion Effects 0.000 claims abstract description 15
- 230000001603 reducing effect Effects 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 4
- 210000003477 cochlea Anatomy 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 6
- 101001010782 Drosophila melanogaster Fez family zinc finger protein erm Proteins 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007779 soft material Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 2
- WWYNJERNGUHSAO-XUDSTZEESA-N (+)-Norgestrel Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](CC)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 WWYNJERNGUHSAO-XUDSTZEESA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 208000005141 Otitis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 208000019258 ear infection Diseases 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229940070721 polyacrylate Drugs 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000454779A CA1221917A (fr) | 1984-05-18 | 1984-05-18 | Protege-oreilles et son filtre anti-bruit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000454779A CA1221917A (fr) | 1984-05-18 | 1984-05-18 | Protege-oreilles et son filtre anti-bruit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1221917A true CA1221917A (fr) | 1987-05-19 |
Family
ID=4127906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000454779A Expired CA1221917A (fr) | 1984-05-18 | 1984-05-18 | Protege-oreilles et son filtre anti-bruit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1221917A (fr) |
-
1984
- 1984-05-18 CA CA000454779A patent/CA1221917A/fr not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |