DK625488A - Passivt hoerevaern - Google Patents

Passivt hoerevaern

Info

Publication number
DK625488A
DK625488A DK625488A DK625488A DK625488A DK 625488 A DK625488 A DK 625488A DK 625488 A DK625488 A DK 625488A DK 625488 A DK625488 A DK 625488A DK 625488 A DK625488 A DK 625488A
Authority
DK
Denmark
Prior art keywords
ear
hearing protection
passive hearing
passive
sound
Prior art date
Application number
DK625488A
Other languages
English (en)
Other versions
DK625488D0 (da
Inventor
Elmer V Carlson
Original Assignee
Industrial Research Prod Inc
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 Industrial Research Prod Inc filed Critical Industrial Research Prod Inc
Publication of DK625488D0 publication Critical patent/DK625488D0/da
Publication of DK625488A publication Critical patent/DK625488A/da

Links

Classifications

    • 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
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • 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
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • A61F11/085—Protective devices for the ears internal, e.g. earplugs including an inner channel

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Acoustics & Sound (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Headphones And Earphones (AREA)
  • Lock And Its Accessories (AREA)
  • Thermistors And Varistors (AREA)
  • Telephone Set Structure (AREA)
DK625488A 1987-11-09 1988-11-09 Passivt hoerevaern DK625488A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/118,455 US4807612A (en) 1987-11-09 1987-11-09 Passive ear protector

Publications (2)

Publication Number Publication Date
DK625488D0 DK625488D0 (da) 1988-11-09
DK625488A true DK625488A (da) 1989-05-10

Family

ID=22378704

Family Applications (1)

Application Number Title Priority Date Filing Date
DK625488A DK625488A (da) 1987-11-09 1988-11-09 Passivt hoerevaern

Country Status (7)

Country Link
US (1) US4807612A (da)
EP (1) EP0315942B1 (da)
JP (1) JPH01155848A (da)
AT (1) ATE89153T1 (da)
CA (1) CA1327021C (da)
DE (1) DE3880965T2 (da)
DK (1) DK625488A (da)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5113967A (en) * 1990-05-07 1992-05-19 Etymotic Research, Inc. Audibility earplug
NL9200957A (nl) * 1992-05-31 1993-12-16 Ver Bedrijven Groeneveld B V Gehoorbeschermer.
US5970795A (en) * 1994-11-14 1999-10-26 Sound Technologies, Inc. Apparatus and method for testing attenuation of in-use insert hearing protectors
US5824967A (en) * 1996-10-29 1998-10-20 Syracuse University Ear muffler
US5711313A (en) * 1997-01-23 1998-01-27 Howard S. Leight & Associates Discoverable earplug
US6148821A (en) * 1998-04-29 2000-11-21 Cabot Safety Intermediate Corporation Selective nonlinear attenuating earplug
GB9907050D0 (en) 1999-03-26 1999-05-19 Sonomax Sft Inc System for fitting a hearing device in the ear
US20030159878A1 (en) * 2000-04-06 2003-08-28 Jorgen Hakansson Earplug
US7065224B2 (en) 2001-09-28 2006-06-20 Sonionmicrotronic Nederland B.V. Microphone for a hearing aid or listening device with improved internal damping and foreign material protection
US7072482B2 (en) 2002-09-06 2006-07-04 Sonion Nederland B.V. Microphone with improved sound inlet port
US7697706B2 (en) * 2003-11-03 2010-04-13 3M Innovative Properties Company Low sound attenuating hearing protection device
US7185734B2 (en) * 2004-08-25 2007-03-06 Phonak Ag Hearing protection earplug, use of such an earplug and method for manufacturing such an earplug
US7864974B2 (en) * 2005-06-29 2011-01-04 Lu-Cheng Chen Earphone device integrated with microphone
BRPI0706492A2 (pt) 2006-01-10 2011-03-29 Harvard College equipamento de proteção nanootológico para toxicidade de ruìdo de impacto e/ou exposição a uma pressão excessiva de explosão
CA2734688A1 (en) * 2008-08-19 2010-02-25 Syracuse University Hearing protection apparatus with incorporated eyewear
US8249285B2 (en) * 2009-06-26 2012-08-21 Etymotic Research Inc. Method and apparatus for producing non linear sound attenuation
US8649540B2 (en) * 2009-10-30 2014-02-11 Etymotic Research, Inc. Electronic earplug
JP4901948B2 (ja) * 2009-12-24 2012-03-21 株式会社東芝 音響信号補正装置および音響信号補正方法
NL2004836C2 (en) 2010-06-07 2011-12-08 Right Angle B V Ear silencer.
US8467561B2 (en) * 2010-06-14 2013-06-18 Merry Electronics Co., Ltd. Earphone device with a function of sound quality regulation and regulating method thereof
US8651229B2 (en) * 2012-06-05 2014-02-18 Honeywell International Inc. Hearing protection
GB201313187D0 (en) * 2013-07-24 2013-09-04 Univ Brunel Passive noise cancelling device
GB2517434B (en) * 2013-08-19 2015-11-18 Racal Acoustics Ltd Hearing protection device
US9295585B1 (en) 2014-09-11 2016-03-29 Syracuse University Ear muffler
DE102014114736A1 (de) * 2014-10-10 2016-04-14 Bachmaier Gmbh & Co. Kg Passiver Gehörschutz, damit ausgestattetes Ohrpassstück und Verfahren zu dessen Herstellung
EP3355842A4 (en) 2015-10-02 2019-06-12 Earos, Inc. DEVICE FOR PROTECTING THE HUMAN SENSORIAL HEARING SYSTEM WHEN HOLDING QUALITY TONE
US10182287B2 (en) 2016-08-16 2019-01-15 Bose Corporation Earphone having damped ear canal resonance
US10475435B1 (en) 2018-12-05 2019-11-12 Bose Corporation Earphone having acoustic impedance branch for damped ear canal resonance and acoustic signal coupling
DE102020201533A1 (de) * 2020-02-07 2021-08-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur schallwandlung mit einem akustischen filter
KR102549977B1 (ko) * 2021-02-26 2023-06-29 고려대학교 산학협력단 메타서피스를 이용한 고주파 소음 필터링 귀마개
US11785375B2 (en) 2021-06-15 2023-10-10 Quiet, Inc. Precisely controlled microphone acoustic attenuator with protective microphone enclosure
US11640816B1 (en) * 2022-02-23 2023-05-02 Acoustic Metamaterials LLC Metamaterial acoustic impedance matching device for headphone-type devices
WO2024054990A2 (en) * 2022-09-08 2024-03-14 The General Hospital Corporation Systems and methods for attenuating acoustic waves

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1016877A (en) * 1911-01-18 1912-02-06 James A R Elliott Ear-protector.
US1148849A (en) * 1915-02-12 1915-08-03 Arnulph Mallock Ear-protector.
US1279396A (en) * 1917-11-10 1918-09-17 Albert A Michelson Art of protecting the ear-diaphragm and apparatus therefor.
US1599961A (en) * 1924-08-01 1926-09-14 Hall Alfred Winslow Audiphone
US2363175A (en) * 1942-08-26 1944-11-21 Frederick M Grossman Electrically and acoustically excited hearing aid
US2361963A (en) * 1943-03-08 1944-11-07 Maurice C Rosenblatt Acoustic guard
US2487038A (en) * 1944-03-25 1949-11-08 Sonotone Corp Ear insert for earphones
US2476224A (en) * 1944-09-12 1949-07-12 Maurice C Rosenblatt Ear protector with adjustable anchoring means
US3134456A (en) * 1960-02-04 1964-05-26 Clark Co Inc David Wide range communication and sound attenuation device
JPS4029589Y1 (da) * 1964-03-21 1965-10-18
US3565069A (en) * 1969-03-21 1971-02-23 Robert Nelson Miller Acoustical filter device
US3842829A (en) * 1971-11-18 1974-10-22 C Ellis Ear protective device
JPS5527334A (en) * 1978-08-18 1980-02-27 Showa Shell Sekiyu Kk Preparation of colloidal fuel
JPS5543039U (da) * 1978-09-13 1980-03-19
JPS6125779Y2 (da) * 1979-12-27 1986-08-04
JPS6031748A (ja) * 1983-08-03 1985-02-18 アサオカ株式会社 耳栓
US4644581A (en) * 1985-06-27 1987-02-17 Bose Corporation Headphone with sound pressure sensing means

Also Published As

Publication number Publication date
JPH0412977B2 (da) 1992-03-06
EP0315942A1 (en) 1989-05-17
JPH01155848A (ja) 1989-06-19
US4807612A (en) 1989-02-28
ATE89153T1 (de) 1993-05-15
CA1327021C (en) 1994-02-15
DE3880965T2 (de) 1993-08-26
EP0315942B1 (en) 1993-05-12
DE3880965D1 (de) 1993-06-17
DK625488D0 (da) 1988-11-09

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment