GB201782A - Improvements in or relating to diaphragms, particularly for telephone receivers - Google Patents
Improvements in or relating to diaphragms, particularly for telephone receiversInfo
- Publication number
- GB201782A GB201782A GB22754/22A GB2275422A GB201782A GB 201782 A GB201782 A GB 201782A GB 22754/22 A GB22754/22 A GB 22754/22A GB 2275422 A GB2275422 A GB 2275422A GB 201782 A GB201782 A GB 201782A
- Authority
- GB
- United Kingdom
- Prior art keywords
- point
- diaphragm
- armature
- distance
- lines
- 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
- 239000002023 wood Substances 0.000 abstract 2
- 241000218657 Picea Species 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
- 239000004411 aluminium Substances 0.000 abstract 1
- 230000005284 excitation Effects 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1765276X | 1927-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB201782A true GB201782A (en) | 1923-08-09 |
Family
ID=19873065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22754/22A Expired GB201782A (en) | 1927-12-30 | 1922-08-21 | Improvements in or relating to diaphragms, particularly for telephone receivers |
Country Status (3)
Country | Link |
---|---|
US (1) | US1765276A (enrdf_load_stackoverflow) |
GB (1) | GB201782A (enrdf_load_stackoverflow) |
NL (1) | NL25659C (enrdf_load_stackoverflow) |
-
0
- NL NL25659D patent/NL25659C/xx active
-
1922
- 1922-08-21 GB GB22754/22A patent/GB201782A/en not_active Expired
-
1928
- 1928-01-16 US US247215A patent/US1765276A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US1765276A (en) | 1930-06-17 |
NL25659C (enrdf_load_stackoverflow) |
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