DE432939C - - Google Patents
Info
- Publication number
- DE432939C DE432939C DENDAT432939D DE432939DA DE432939C DE 432939 C DE432939 C DE 432939C DE NDAT432939 D DENDAT432939 D DE NDAT432939D DE 432939D A DE432939D A DE 432939DA DE 432939 C DE432939 C DE 432939C
- Authority
- DE
- Germany
- Prior art keywords
- earpiece
- hollow rubber
- membrane
- telephone
- threaded ring
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 description 2
- 208000032041 Hearing impaired Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1008—Earpieces of the supra-aural or circum-aural type
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE432939C true DE432939C (enEXAMPLES) |
Family
ID=575054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT432939D Active DE432939C (enEXAMPLES) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE432939C (enEXAMPLES) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3030458A (en) * | 1958-10-17 | 1962-04-17 | Electric Storage Battery Co | Detachable liner for headsets |
| DE1267787B (de) * | 1954-05-20 | 1968-05-09 | Nat Res Council | Laermschutzvorrichtung nach Art von Ohrenschuetzern |
-
0
- DE DENDAT432939D patent/DE432939C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1267787B (de) * | 1954-05-20 | 1968-05-09 | Nat Res Council | Laermschutzvorrichtung nach Art von Ohrenschuetzern |
| US3030458A (en) * | 1958-10-17 | 1962-04-17 | Electric Storage Battery Co | Detachable liner for headsets |
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