FR2495424B1 - Dispositif de communication exterieure locale - Google Patents

Dispositif de communication exterieure locale

Info

Publication number
FR2495424B1
FR2495424B1 FR8113898A FR8113898A FR2495424B1 FR 2495424 B1 FR2495424 B1 FR 2495424B1 FR 8113898 A FR8113898 A FR 8113898A FR 8113898 A FR8113898 A FR 8113898A FR 2495424 B1 FR2495424 B1 FR 2495424B1
Authority
FR
France
Prior art keywords
communication device
external communication
local external
local
external
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
FR8113898A
Other languages
English (en)
French (fr)
Other versions
FR2495424A1 (fr
Inventor
Robert Ingalls
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.)
Gentex Corp
Original Assignee
Gentex Corp
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
Application filed by Gentex Corp filed Critical Gentex Corp
Publication of FR2495424A1 publication Critical patent/FR2495424A1/fr
Application granted granted Critical
Publication of FR2495424B1 publication Critical patent/FR2495424B1/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing 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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
FR8113898A 1980-07-16 1981-07-16 Dispositif de communication exterieure locale Expired FR2495424B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16941980A 1980-07-16 1980-07-16

Publications (2)

Publication Number Publication Date
FR2495424A1 FR2495424A1 (fr) 1982-06-04
FR2495424B1 true FR2495424B1 (fr) 1986-03-21

Family

ID=22615605

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8113898A Expired FR2495424B1 (fr) 1980-07-16 1981-07-16 Dispositif de communication exterieure locale

Country Status (4)

Country Link
AU (1) AU542285B2 (enrdf_load_stackoverflow)
DE (2) DE3153678C2 (enrdf_load_stackoverflow)
FR (1) FR2495424B1 (enrdf_load_stackoverflow)
GB (1) GB2081550B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508936A (en) * 1980-07-16 1985-04-02 Gentex Corporation Local external communication system
AT378652B (de) * 1983-12-27 1985-09-10 Akg Akustische Kino Geraete Anordnung zur sprachuebertragung aus einer atemschutzmaske
AT381605B (de) * 1984-10-25 1986-11-10 Akg Akustische Kino Geraete Atemschutzmaske, bei der ausser der sprechmembran fuer die nahverstaendigung auch ein elektro- akustischer wandler fuer die indirekte sprach- uebertragung aus der maske vorgesehen ist
US4736740A (en) * 1985-09-09 1988-04-12 Robin Parker Gas mask with voice communication device
DE9409320U1 (de) * 1994-06-08 1995-07-06 Berlin, Florence, Genf Atemschutzmaske und Mikrofonhalter zur Verwendung darin
GB9908380D0 (en) * 1999-04-14 1999-06-09 Carpenter Robert L Rob Carpenter's voice thrower
DE102020126041B3 (de) 2020-10-05 2022-04-07 Torsten Pfriem Mund-Nase-Maske

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391666A (fr) * 1961-12-20 1965-03-12 Perfectionnements aux masques de protection
US3180333A (en) * 1963-05-29 1965-04-27 Acme Prot Equipment Co Gas mask communication system
FR1535622A (fr) * 1967-06-27 1968-08-09 Fernez & Cie Perfectionnements aux masques de protection des voies respiratoires
US4150262A (en) * 1974-11-18 1979-04-17 Hiroshi Ono Piezoelectric bone conductive in ear voice sounds transmitting and receiving apparatus
DE2600294A1 (de) * 1976-01-07 1977-07-14 Michael Dipl Ing Pabst Wechselstromverbindung, insbesondere zur niederfrequenzuebertragung
US4072831A (en) * 1976-09-10 1978-02-07 Instrument Systems Corporation Voice transmitting apparatus for a breathing mask

Also Published As

Publication number Publication date
DE3153678C2 (enrdf_load_stackoverflow) 1992-04-02
FR2495424A1 (fr) 1982-06-04
AU542285B2 (en) 1985-02-14
AU7165781A (en) 1982-01-21
GB2081550A (en) 1982-02-17
DE3127677C2 (enrdf_load_stackoverflow) 1991-05-02
GB2081550B (en) 1984-12-19
DE3127677A1 (de) 1982-04-29

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse
ST Notification of lapse