GB327926A - Telephone mufflers - Google Patents
Telephone mufflersInfo
- Publication number
- GB327926A GB327926A GB22353/29A GB2235329A GB327926A GB 327926 A GB327926 A GB 327926A GB 22353/29 A GB22353/29 A GB 22353/29A GB 2235329 A GB2235329 A GB 2235329A GB 327926 A GB327926 A GB 327926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- telephone
- side wall
- opening
- box
- mouthpiece
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
327,926. Tuttle, H. C. July 20, 1929. Mouthpieces and attachment. - A telephone muffler, more particularly for hand combination sets, comprises an upright portable hollow box 22 with sound deadening material 26 at the bottom, an opening 19 in one side wall 2 to receive the telephone mouthpiece 25 and a second opening 10 in the top thereof shaped to conform to the face of the user. Instead of employing sound deadening material as shown, the box may be interiorly lined with sound absorbing material. The mouthpiece 25 is gripped in a rubber &c. annulus 21 having a groove 20 in which the portion of the side wall 2 surrounding the opening 19 is adapted to engage. A clock, calendar or note pad 28 may be mounted on the other side wall 1 of the box.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US375065A US1800234A (en) | 1929-07-01 | 1929-07-01 | Telephone muffler |
GB22353/29A GB327926A (en) | 1929-07-20 | 1929-07-20 | Telephone mufflers |
NL47411A NL26028C (en) | 1929-07-20 | 1929-07-27 | |
DET37363D DE518223C (en) | 1929-07-20 | 1929-08-06 | Device for sound absorption for microphones |
FR679978D FR679978A (en) | 1929-07-20 | 1929-08-07 | Improvements to voice suppressors for phones |
BE362912D BE362912A (en) | 1929-07-20 | 1929-08-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22353/29A GB327926A (en) | 1929-07-20 | 1929-07-20 | Telephone mufflers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB327926A true GB327926A (en) | 1930-04-17 |
Family
ID=10178021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22353/29A Expired GB327926A (en) | 1929-07-01 | 1929-07-20 | Telephone mufflers |
Country Status (6)
Country | Link |
---|---|
US (1) | US1800234A (en) |
BE (1) | BE362912A (en) |
DE (1) | DE518223C (en) |
FR (1) | FR679978A (en) |
GB (1) | GB327926A (en) |
NL (1) | NL26028C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458199A (en) * | 1947-04-15 | 1949-01-04 | Albert C Reinhold | Telephone transmitter support and silencer |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE626423A (en) * | 1962-01-09 | |||
US3925616A (en) * | 1974-04-30 | 1975-12-09 | Bell Telephone Labor Inc | Apparatus for determining the glottal waveform |
US9525765B2 (en) | 2014-02-18 | 2016-12-20 | Quiet, Inc. | Ergonomic anechoic anti-noise canceling chamber for use with a communication device and related methods |
US9576567B2 (en) | 2014-02-18 | 2017-02-21 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
US8948411B1 (en) * | 2014-02-18 | 2015-02-03 | Scott A. Moser | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
US9386135B2 (en) | 2014-05-16 | 2016-07-05 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
US9614945B1 (en) | 2014-02-18 | 2017-04-04 | Quiet, Inc. | Anti-noise canceling headset and related methods |
US9253299B2 (en) | 2014-02-18 | 2016-02-02 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
-
1929
- 1929-07-01 US US375065A patent/US1800234A/en not_active Expired - Lifetime
- 1929-07-20 GB GB22353/29A patent/GB327926A/en not_active Expired
- 1929-07-27 NL NL47411A patent/NL26028C/xx active
- 1929-08-06 DE DET37363D patent/DE518223C/en not_active Expired
- 1929-08-07 FR FR679978D patent/FR679978A/en not_active Expired
- 1929-08-09 BE BE362912D patent/BE362912A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458199A (en) * | 1947-04-15 | 1949-01-04 | Albert C Reinhold | Telephone transmitter support and silencer |
Also Published As
Publication number | Publication date |
---|---|
DE518223C (en) | 1931-02-20 |
NL26028C (en) | 1932-09-15 |
FR679978A (en) | 1930-04-23 |
BE362912A (en) | 1929-09-30 |
US1800234A (en) | 1931-04-14 |
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