DE2038839A1 - Schallschutzvorrichtung fuer Ohren - Google Patents

Schallschutzvorrichtung fuer Ohren

Info

Publication number
DE2038839A1
DE2038839A1 DE19702038839 DE2038839A DE2038839A1 DE 2038839 A1 DE2038839 A1 DE 2038839A1 DE 19702038839 DE19702038839 DE 19702038839 DE 2038839 A DE2038839 A DE 2038839A DE 2038839 A1 DE2038839 A1 DE 2038839A1
Authority
DE
Germany
Prior art keywords
recess
amplifier
transducer
insert
battery
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.)
Pending
Application number
DE19702038839
Other languages
German (de)
English (en)
Inventor
Lowe Brian Arthur
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.)
Cosmocord Ltd
Original Assignee
Cosmocord Ltd
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 Cosmocord Ltd filed Critical Cosmocord Ltd
Publication of DE2038839A1 publication Critical patent/DE2038839A1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/16—Ear protection devices
    • A42B3/166—Integral hearing protection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
    • A61F11/145—Protective devices for the ears external, e.g. earcaps or earmuffs electric, e.g. for active noise reduction

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Headphones And Earphones (AREA)
  • Helmets And Other Head Coverings (AREA)
DE19702038839 1969-08-07 1970-08-05 Schallschutzvorrichtung fuer Ohren Pending DE2038839A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3954269 1969-08-07

Publications (1)

Publication Number Publication Date
DE2038839A1 true DE2038839A1 (de) 1971-02-18

Family

ID=10410132

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702038839 Pending DE2038839A1 (de) 1969-08-07 1970-08-05 Schallschutzvorrichtung fuer Ohren

Country Status (2)

Country Link
DE (1) DE2038839A1 (enrdf_load_stackoverflow)
GB (1) GB1289993A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312801A1 (de) * 1983-04-09 1984-10-11 Diehl GmbH & Co, 8500 Nürnberg Verfahren zur steigerung der konzentrationsfaehigkeit und vorrichtung zum ausueben des verfahrens
DE3546565C2 (de) * 1984-05-29 1993-12-23 Nissan Motor Ultraschall-Entfernungsmeser

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439645A (en) * 1980-05-15 1984-03-27 Gentex Corporation Sound attenuating earcup assembly with outside communication capability
US4972491A (en) * 1988-11-30 1990-11-20 Wilcox Jr Edward R Ear-mic headset/eardefender
US5732143A (en) 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
US5715321A (en) * 1992-10-29 1998-02-03 Andrea Electronics Coporation Noise cancellation headset for use with stand or worn on ear
US5673325A (en) * 1992-10-29 1997-09-30 Andrea Electronics Corporation Noise cancellation apparatus
USD392290S (en) 1995-10-27 1998-03-17 Andrea Electronics Corporation Combined boom microphone headset and stand
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
SE526944C2 (sv) 2003-11-27 2005-11-22 Peltor Ab Hörselskydd
SE528519C2 (sv) 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE528515C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa med mikrofonanordning
SE528514C2 (sv) 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE530023C2 (sv) 2006-06-20 2008-02-12 Peltor Ab Hörselkåpa
SE532379C2 (sv) 2008-03-26 2009-12-29 3M Svenska Ab Hörselskydd innefattande behandlingsanordningar för behandling av repeterbart och icke-repeterbart buller
SE531656E5 (sv) 2008-05-12 2011-04-26 3M Svenska Ab Hörselskydd

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312801A1 (de) * 1983-04-09 1984-10-11 Diehl GmbH & Co, 8500 Nürnberg Verfahren zur steigerung der konzentrationsfaehigkeit und vorrichtung zum ausueben des verfahrens
DE3546565C2 (de) * 1984-05-29 1993-12-23 Nissan Motor Ultraschall-Entfernungsmeser

Also Published As

Publication number Publication date
GB1289993A (enrdf_load_stackoverflow) 1972-09-20

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