GB1297093A - - Google Patents
Info
- Publication number
- GB1297093A GB1297093A GB1297093DA GB1297093A GB 1297093 A GB1297093 A GB 1297093A GB 1297093D A GB1297093D A GB 1297093DA GB 1297093 A GB1297093 A GB 1297093A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microphone
- shell
- disc
- head
- ear
- 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
- 210000003128 head Anatomy 0.000 abstract 3
- 239000004677 Nylon Substances 0.000 abstract 2
- 239000006260 foam Substances 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 229920001778 nylon Polymers 0.000 abstract 2
- 239000004814 polyurethane Substances 0.000 abstract 2
- 229920002635 polyurethane Polymers 0.000 abstract 2
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 210000000613 ear canal Anatomy 0.000 abstract 1
- 210000000883 ear external Anatomy 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 abstract 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910001120 nichrome Inorganic materials 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 229920000570 polyether Polymers 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1101771 | 1971-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1297093A true GB1297093A (enrdf_load_stackoverflow) | 1972-11-22 |
Family
ID=9978525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1297093D Expired GB1297093A (enrdf_load_stackoverflow) | 1971-04-23 | 1971-04-23 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2134028A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1297093A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7216501A (enrdf_load_stackoverflow) * | 1972-12-06 | 1974-06-10 |
-
1971
- 1971-04-23 GB GB1297093D patent/GB1297093A/en not_active Expired
-
1972
- 1972-04-21 FR FR7214203A patent/FR2134028A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2134028A1 (enrdf_load_stackoverflow) | 1972-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |