GB492664A - Improvements relating to the application of microphones to masks for protection against gases - Google Patents

Improvements relating to the application of microphones to masks for protection against gases

Info

Publication number
GB492664A
GB492664A GB850637A GB850637A GB492664A GB 492664 A GB492664 A GB 492664A GB 850637 A GB850637 A GB 850637A GB 850637 A GB850637 A GB 850637A GB 492664 A GB492664 A GB 492664A
Authority
GB
United Kingdom
Prior art keywords
gases
protection
microphone
microphones
masks
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
Application number
GB850637A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
APPLIC IND ET COMMERCIALES SOC
Original Assignee
APPLIC IND ET COMMERCIALES SOC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR492664X priority Critical
Application filed by APPLIC IND ET COMMERCIALES SOC filed Critical APPLIC IND ET COMMERCIALES SOC
Publication of GB492664A publication Critical patent/GB492664A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

Abstract

492,664. Supporting telephone transmitters. SOC. D'ETUDES ET D'APPLICATIONS INDUSTRIELLES ET COMMERCIALES. March 23, 1937, No. 8506. Convention date, March 23, 1936. [Class 40 (iv)] [Also in Group VI] A microphone is adapted to be readily applicable to or detachable from a mask for protection against gases by means of spring clips c or equivalent rapid clamping means attached to the microphone b and adapted to engage with a valve a of the mask, the microphone being also provided with a socket d, d<1> for electrical connection.
GB850637A 1936-03-23 1937-03-23 Improvements relating to the application of microphones to masks for protection against gases Expired GB492664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR492664X 1936-03-23

Publications (1)

Publication Number Publication Date
GB492664A true GB492664A (en) 1938-09-23

Family

ID=8904564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB850637A Expired GB492664A (en) 1936-03-23 1937-03-23 Improvements relating to the application of microphones to masks for protection against gases

Country Status (1)

Country Link
GB (1) GB492664A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292618A (en) * 1963-11-18 1966-12-20 Briskin Inc J Under-water diving equipment
GB2152330A (en) * 1983-12-27 1985-07-31 Akg Akustische Kino Geraete A mask and a method of transmitting sound from gas mask
GB2165721A (en) * 1984-10-16 1986-04-16 Charles William Dickinson A speech facility for a facemask
US4736740A (en) * 1985-09-09 1988-04-12 Robin Parker Gas mask with voice communication device
US5138666A (en) * 1987-12-18 1992-08-11 Actron Manufacturing Company Voice transmission system
US5371804A (en) * 1987-12-18 1994-12-06 Actron Manufacturing Company Voice transmission system
US5428688A (en) * 1993-03-29 1995-06-27 Audiopack Sounds Systems Voice transmission system with remote microphone
US5463693A (en) * 1993-11-10 1995-10-31 Audiopack Sound Systems Inc. Voice amplification adapter assembly for face mask

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292618A (en) * 1963-11-18 1966-12-20 Briskin Inc J Under-water diving equipment
GB2152330A (en) * 1983-12-27 1985-07-31 Akg Akustische Kino Geraete A mask and a method of transmitting sound from gas mask
US4718415A (en) * 1983-12-27 1988-01-12 AKG Akustische u.KinoGerate Gesellschaft m.b.H. Breathing mask having a transducer movable parts coupled to a speaking diaphragm for speech transmission
GB2165721A (en) * 1984-10-16 1986-04-16 Charles William Dickinson A speech facility for a facemask
US4736740A (en) * 1985-09-09 1988-04-12 Robin Parker Gas mask with voice communication device
US5138666A (en) * 1987-12-18 1992-08-11 Actron Manufacturing Company Voice transmission system
US5371804A (en) * 1987-12-18 1994-12-06 Actron Manufacturing Company Voice transmission system
US5428688A (en) * 1993-03-29 1995-06-27 Audiopack Sounds Systems Voice transmission system with remote microphone
US5463693A (en) * 1993-11-10 1995-10-31 Audiopack Sound Systems Inc. Voice amplification adapter assembly for face mask

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