CH496441A - Ear protector - Google Patents

Ear protector

Info

Publication number
CH496441A
CH496441A CH1180569A CH1180569A CH496441A CH 496441 A CH496441 A CH 496441A CH 1180569 A CH1180569 A CH 1180569A CH 1180569 A CH1180569 A CH 1180569A CH 496441 A CH496441 A CH 496441A
Authority
CH
Switzerland
Prior art keywords
ear protector
protector
ear
Prior art date
Application number
CH1180569A
Other languages
French (fr)
Inventor
Graham Gorman Anthony
Original Assignee
Amplivox 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
Priority claimed from GB2833969A external-priority patent/GB1276498A/en
Application filed by Amplivox Ltd filed Critical Amplivox Ltd
Publication of CH496441A publication Critical patent/CH496441A/en

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
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)
CH1180569A 1968-08-01 1969-08-01 Ear protector CH496441A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3684268 1968-08-01
GB2833969A GB1276498A (en) 1968-08-01 1968-08-01 Improvements in and relating to ear defenders

Publications (1)

Publication Number Publication Date
CH496441A true CH496441A (en) 1970-09-30

Family

ID=26259333

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1180569A CH496441A (en) 1968-08-01 1969-08-01 Ear protector

Country Status (6)

Country Link
US (1) US3637040A (en)
CH (1) CH496441A (en)
DE (1) DE1938259C3 (en)
FR (1) FR2014846A1 (en)
NL (1) NL156042B (en)
SE (1) SE352526B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837681A (en) * 1973-06-28 1974-09-24 W Reynolds Stethoscope
US3938616A (en) * 1973-11-27 1976-02-17 Brownfield Swayze W Sound multiplier
US3934100A (en) * 1974-04-22 1976-01-20 Seeburg Corporation Acoustic coupler for use with auditory equipment
US4529057A (en) * 1982-04-13 1985-07-16 The Marconi Company Limited Ear defenders
US4441576A (en) * 1982-04-19 1984-04-10 Allen Clayton H Nonlinear passive acoustic filtering
US4459707A (en) * 1982-08-23 1984-07-17 Cabot Corporation Ear protecting device
US4465159A (en) * 1983-03-11 1984-08-14 Cabot Corporation Nonlinear ear protecting device
FR2546355A1 (en) * 1983-05-19 1984-11-23 Fame PROTECTIVE HELMET AND SOUND SIGNAL TRANSMITTER
DE3623315A1 (en) * 1986-07-11 1988-01-21 Wolfgang Brede Kg Device for a low-pass hearing protection
US7317802B2 (en) * 2000-07-25 2008-01-08 Lightspeed Aviation, Inc. Active-noise-reduction headsets with front-cavity venting
US20080165981A1 (en) * 2000-07-25 2008-07-10 Michael Jon Wurtz Active-noise-reduction headsets with front-cavity venting
US6826287B2 (en) 2001-04-09 2004-11-30 Cabot Safety Intermediate Corporation Earmuff with controlled leak
US20040125976A1 (en) * 2002-12-30 2004-07-01 Reneker Brian Scott Headphones or earmuffs with a user operated mechanical device that controls the volume of exterior sound entering the ear of the user
GB2401278B (en) * 2003-04-30 2007-06-06 Sennheiser Electronic A device for picking up/reproducing audio signals
CN1909862A (en) * 2004-01-23 2007-02-07 卡伯特安全媒介公司 High attenuating earmuff device
US20070253589A1 (en) * 2006-04-26 2007-11-01 Foo Toon J Earphone
US20080123884A1 (en) * 2006-08-22 2008-05-29 David Donenfeld Passive hearing aid device
DE102007038290A1 (en) * 2007-08-14 2009-02-19 Head Germany Gmbh helmet
AU2010335987B2 (en) * 2009-12-24 2015-11-12 Sonomax Technologies Inc. In-ear device with selectable frequency response
USD735161S1 (en) * 2013-08-16 2015-07-28 Microsoft Corporation Earcups for a headset
USD735691S1 (en) * 2013-08-16 2015-08-04 Microsoft Corporation Earcups for a headset
USD848396S1 (en) * 2017-11-02 2019-05-14 Honeywell International Inc. Noise monitoring headset
USD864899S1 (en) * 2018-05-11 2019-10-29 Techcool Industry Development Co., Ltd. Headset
USD877714S1 (en) 2018-09-25 2020-03-10 Microsoft Corporation Headset
USD878327S1 (en) 2018-09-25 2020-03-17 Microsoft Corporation Earcups for a headset
GB201903920D0 (en) * 2019-03-21 2019-05-08 Minuendo As Ear protection
EP4093357B1 (en) * 2019-12-23 2023-09-06 Minuendo AS Hearing protection device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US125339A (en) * 1872-04-02 Improvement in ear-muffs
US2390794A (en) * 1944-02-21 1945-12-11 Zenith Radio Corp Frequency response control
CH242047A (en) * 1944-05-20 1946-04-15 Luzius Prof Dr Med Rueedi Device for the protection of the hearing against harmful sound effects.
NL78163C (en) * 1950-05-11
US2672864A (en) * 1951-07-18 1954-03-23 Makara Frank Audio mask
US2754365A (en) * 1952-09-15 1956-07-10 Maico Company Inc Acoustical tone control for wearable hearing aids
FR1145964A (en) * 1954-05-20 1957-11-05 Ca Nat Research Council Eardrums
US2976948A (en) * 1958-01-03 1961-03-28 Canada Nat Res Council Mechanical device for distance discrimination of sounds
US3220505A (en) * 1964-04-01 1965-11-30 Willard B Hargrave Audiometric headset
US3335720A (en) * 1965-06-02 1967-08-15 Leonard Peter Frieder Valve for sound attenuating device
GB1183232A (en) * 1966-02-25 1970-03-04 Kahn Leonard R Improvements in or relating to Hearing Protection Systems

Also Published As

Publication number Publication date
DE1938259A1 (en) 1970-02-05
DE1938259C3 (en) 1974-06-06
SE352526B (en) 1973-01-08
NL6911432A (en) 1970-02-03
NL156042B (en) 1978-03-15
DE1938259B2 (en) 1973-11-08
FR2014846A1 (en) 1970-04-24
US3637040A (en) 1972-01-25

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Legal Events

Date Code Title Description
PUE Assignment

Owner name: RACAL ACOUSTICS LIMITED

PL Patent ceased