GB417431A - New or improved device for the disinfection of microphones and receivers of telephonic, wireless transmission and like apparatus - Google Patents
New or improved device for the disinfection of microphones and receivers of telephonic, wireless transmission and like apparatusInfo
- Publication number
- GB417431A GB417431A GB8600/34A GB860034A GB417431A GB 417431 A GB417431 A GB 417431A GB 8600/34 A GB8600/34 A GB 8600/34A GB 860034 A GB860034 A GB 860034A GB 417431 A GB417431 A GB 417431A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microphones
- receivers
- microphone
- receiver
- telephonic
- 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
- 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
- H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
417,431. Sanitary and hygienic devices. COSTA, J. D'O., 6, Rua Afco Marquez de Alegrete, Lisbon. March 19, 1934, No. 8600. Convention date, Feb. 1. [Class 40 (iv).] Microphones or telephone or like receivers are disinfected by a device adapted to be fitted between the body of the microphone or receiver and the cover thereof and comprising a member A having two concentric rings B, C forming an annular chamber adapted to contain a disinfecting substance, the inner wall C being perforated at D and the chamber being closed by the mouthpiece or ear cap of the microphone or receiver. The Figure shows the invention applied to the microphone and receiver of a telephone handset. Reference has been directed by the Comptroller to Specifications 1493/09, 2215/13, and 157,614, [all in Class 40 (iv)].
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT417431X | 1934-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB417431A true GB417431A (en) | 1934-10-04 |
Family
ID=20081617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8600/34A Expired GB417431A (en) | 1934-02-01 | 1934-03-19 | New or improved device for the disinfection of microphones and receivers of telephonic, wireless transmission and like apparatus |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE401688A (en) |
FR (1) | FR769416A (en) |
GB (1) | GB417431A (en) |
-
0
- BE BE401688D patent/BE401688A/xx unknown
-
1934
- 1934-02-28 FR FR769416D patent/FR769416A/en not_active Expired
- 1934-03-19 GB GB8600/34A patent/GB417431A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE401688A (en) | |
FR769416A (en) | 1934-08-25 |
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