CH466052A - Respirator with exhalation valve and speech membrane - Google Patents

Respirator with exhalation valve and speech membrane

Info

Publication number
CH466052A
CH466052A CH807268A CH807268A CH466052A CH 466052 A CH466052 A CH 466052A CH 807268 A CH807268 A CH 807268A CH 807268 A CH807268 A CH 807268A CH 466052 A CH466052 A CH 466052A
Authority
CH
Switzerland
Prior art keywords
respirator
exhalation valve
speech membrane
speech
membrane
Prior art date
Application number
CH807268A
Other languages
German (de)
Inventor
Warncke Ernst
Original Assignee
Draeger Otto Heinrich Dr
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 Draeger Otto Heinrich Dr filed Critical Draeger Otto Heinrich Dr
Publication of CH466052A publication Critical patent/CH466052A/en

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
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • 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
    • 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
    • A62B18/10—Valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
CH807268A 1967-06-03 1968-05-31 Respirator with exhalation valve and speech membrane CH466052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0053254 1967-06-03

Publications (1)

Publication Number Publication Date
CH466052A true CH466052A (en) 1968-11-30

Family

ID=7054818

Family Applications (1)

Application Number Title Priority Date Filing Date
CH807268A CH466052A (en) 1967-06-03 1968-05-31 Respirator with exhalation valve and speech membrane

Country Status (6)

Country Link
CH (1) CH466052A (en)
CS (1) CS159746B2 (en)
DE (1) DE1708045A1 (en)
FR (1) FR1575820A (en)
GB (1) GB1215218A (en)
SE (1) SE326893B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320125A1 (en) * 1987-11-13 1989-06-14 Avon Industrial Polymers Limited Air guidance in respirators

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT381605B (en) * 1984-10-25 1986-11-10 Akg Akustische Kino Geraete RESPIRATORY MASK IN WHICH EXCEPT THE SPEAKING MEMBRANE FOR THE CLOSE COMMUNICATION IS ALSO AN ELECTROACOUSTIC CONVERTER FOR THE INDIRECT VOICE TRANSMISSION FROM THE MASK
DE3510302A1 (en) * 1985-03-22 1986-09-25 Drägerwerk AG, 2400 Lübeck RESPIRATORY MASK FOR OVERPRESSURE RESPIRATORY DEVICES
US4792013A (en) * 1987-09-08 1988-12-20 Boynton Carter R Vocal muffler
DE4220780C1 (en) * 1992-06-25 1993-09-23 Draegerwerk Ag, 23558 Luebeck, De
FR2740689B1 (en) 1995-11-03 1998-01-23 Comasec International EYEPIECE FOR A RESPIRATORY PROTECTION MASK, MASK PROVIDED WITH THE EYEPIECE AND HELMET AND SCAPHANDRE PROVIDED WITH THE MASK
FR2740690B1 (en) * 1995-11-03 1998-07-03 Comasec International CONNECTION BLOCK FOR A RESPIRATORY MASK; MASK PROVIDED WITH SUCH A BLOCK; HELMET AND SCAPHANDRE COMPRISING SUCH A MASK
DE10159219B4 (en) * 2001-11-27 2005-09-29 Msa Auer Gmbh Respiratory mask for a compressed air breathing apparatus
FR2862883B1 (en) * 2003-11-27 2006-06-16 Philippe Leclere HYGIENE, COMFORT AND / OR PROTECTIVE DEVICE FOR PREVENTING OR LIMITING WATER VAPOR RETURN CONTAINED IN AIR EXHIBITS IN THE VISION FIELD OF AN INDIVIDUAL
CN104225834A (en) * 2014-10-02 2014-12-24 吴建平 Novel dust protection mask
CN104436461A (en) * 2014-12-11 2015-03-25 江苏同康特种活性炭纤维面料有限公司 Filter firefighting self-rescue respirator
DE102015204645B4 (en) 2015-03-13 2020-04-23 Msa Europe Gmbh Respirator
CN109276789A (en) * 2018-11-21 2019-01-29 王晖 A kind of negative pressure tractive respiratory method and its device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320125A1 (en) * 1987-11-13 1989-06-14 Avon Industrial Polymers Limited Air guidance in respirators

Also Published As

Publication number Publication date
DE1708045A1 (en) 1972-01-05
GB1215218A (en) 1970-12-09
CS159746B2 (en) 1975-01-31
SE326893B (en) 1970-08-03
FR1575820A (en) 1969-07-25

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