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CA969481A - Earplugs - Google Patents

Earplugs

Info

Publication number
CA969481A
CA969481A CA155,091A CA155091A CA969481A CA 969481 A CA969481 A CA 969481A CA 155091 A CA155091 A CA 155091A CA 969481 A CA969481 A CA 969481A
Authority
CA
Canada
Prior art keywords
earplugs
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
CA155,091A
Other versions
CA155091S (en
Inventor
Ross Gardner (Jr.)
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.)
National Research Corp
Original Assignee
National Research 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22709352&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA969481(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by National Research Corp filed Critical National Research Corp
Application granted granted Critical
Publication of CA969481A publication Critical patent/CA969481A/en
Expired legal-status Critical Current

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
    • A61F11/10—Protective devices for the ears internal, e.g. earplugs inflatable or expandable
    • 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

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Headphones And Earphones (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
CA155,091A 1971-10-26 1972-10-26 Earplugs Expired CA969481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00192366A US3811437A (en) 1971-10-26 1971-10-26 Earplugs

Publications (1)

Publication Number Publication Date
CA969481A true CA969481A (en) 1975-06-17

Family

ID=22709352

Family Applications (2)

Application Number Title Priority Date Filing Date
CA155,091A Expired CA969481A (en) 1971-10-26 1972-10-26 Earplugs
CA281,496A Expired CA1022470B (en) 1971-10-26 1977-06-28 Earplugs

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA281,496A Expired CA1022470B (en) 1971-10-26 1977-06-28 Earplugs

Country Status (13)

Country Link
US (2) US3811437A (en)
JP (1) JPS5549859B2 (en)
BE (1) BE790456A (en)
CA (2) CA969481A (en)
CH (1) CH558171A (en)
DE (1) DE2251774C3 (en)
FR (1) FR2158978A5 (en)
GB (1) GB1403097A (en)
HK (1) HK23080A (en)
IT (1) IT975269B (en)
NL (1) NL169678C (en)
SE (2) SE399640B (en)
SU (1) SU648055A3 (en)

Families Citing this family (90)

* Cited by examiner, † Cited by third party
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JPS52168503U (en) * 1976-06-14 1977-12-21
JPS5338800U (en) * 1976-09-08 1978-04-05
US4193396A (en) * 1978-04-28 1980-03-18 E-A-R Corporation Paired earplug construction
JPS5821275Y2 (en) * 1979-06-08 1983-05-06 株式会社パイロット Sensing part of vibration pick-up ear microphone
SE443505B (en) * 1979-11-05 1986-03-03 E A R Corp HEARING PROTECTION WITH SPRING HEADBANDS
US4461290A (en) * 1980-09-08 1984-07-24 Cabot Corporation Hearing protectors
DE3108261C2 (en) * 1981-03-05 1983-03-24 Rehau Plastiks Ag & Co, 8673 Rehau Process for the production of hearing protection plugs from plastic foam
IT1156545B (en) * 1982-11-08 1987-02-04 Amplisilence Spa SOUND ABSORBING HEADSET INSERTS IN EXPANDED POLYMERIC MATERIAL
US4579112A (en) * 1984-05-17 1986-04-01 Scott Robert T Foam earplug
US4776590A (en) * 1984-05-30 1988-10-11 Krent Edward D Vibration dampening device for sporting rackets
US4609194A (en) * 1984-05-30 1986-09-02 Krent Edward D Vibration dampening device for sporting rackets
US4677679A (en) * 1984-07-05 1987-06-30 Killion Mead C Insert earphones for audiometry
US4724922A (en) * 1986-07-24 1988-02-16 Kalayjian Robert W Acoustic earpiece
US5002151A (en) * 1986-12-05 1991-03-26 Minnesota Mining And Manufacturing Company Ear piece having disposable, compressible polymeric foam sleeve
US4880076A (en) 1986-12-05 1989-11-14 Minnesota Mining And Manufacturing Company Hearing aid ear piece having disposable compressible polymeric foam sleeve
DK159190C (en) * 1988-05-24 1991-03-04 Steen Barbrand Rasmussen SOUND PROTECTION FOR NOISE PROTECTED COMMUNICATION BETWEEN THE USER OF THE EARNET PROPERTY AND SURROUNDINGS
JPH02108089U (en) * 1989-02-14 1990-08-28
US4896679A (en) * 1989-05-22 1990-01-30 St Pierre Carol L Method and apparatus for the exclusion of sound and water from the auditory canal
SE8902802L (en) * 1989-08-23 1991-02-24 Alf Ivarsson INSTRUMENT FOR INTRODUCING A SELF-EXPANDING PROP
DE3929060A1 (en) * 1989-09-01 1991-03-07 Bobertag Gmbh HEALTH PROTECTION PLUG
US5044463A (en) * 1989-11-30 1991-09-03 Cabot Corporation Molded foam earplug and method for making same
AU640254B2 (en) * 1990-06-25 1993-08-19 Cabot Safety Intermediate Corporation Hearing protective earplug
US5188123A (en) * 1990-08-20 1993-02-23 Cabot Safety Corporation Hearing protective earplug having alternative modes of insertion
US5131411A (en) * 1990-08-20 1992-07-21 Virginia Polytechnic Institute & State University Custom-fitting earplug formed in situ using foaming action
WO1992003112A1 (en) * 1990-08-20 1992-03-05 Cabot Safety Corporation Hearing protective earplug having alternative modes of insertion
US5203352A (en) * 1990-10-16 1993-04-20 Cabot Safety Corporation Polymeric foam earplug
US5153387A (en) * 1990-12-31 1992-10-06 Syracuse University Layered earplug
US5195539A (en) * 1992-03-23 1993-03-23 Minnesota Mining And Manufacturing Company Earplug compression device
US5792998A (en) 1993-04-19 1998-08-11 Cabot Safety Intermediate Corporation Acoustical hearing protective devices utilizing dynamically stiff foam and methods of producing same
WO1995009082A1 (en) * 1993-09-28 1995-04-06 Bradford Industries, Inc. Sound attenuation composite and method for forming same
US5483027A (en) * 1994-08-24 1996-01-09 Krause; Ward B. Earplug with form-fitting fluid chambers
US5609164A (en) * 1995-10-23 1997-03-11 Minnesota Mining And Manufacturing Company Method of forming an earplug containment device
US5809574A (en) * 1996-08-15 1998-09-22 Cabot Safety Intermediate Corporation Hearing protection device
US5799658A (en) * 1996-08-15 1998-09-01 Cabot Safety Intermediate Corporation Hearing protective device comprising a foam and a porous component and method of manufacture thereof
TW428184B (en) 1998-02-19 2001-04-01 Teijin Ltd Method and apparatus for producing laminated type electronic component
NO307540B1 (en) 1998-07-24 2000-04-17 Meditron As Headphone
US6358231B1 (en) 1998-08-24 2002-03-19 Biopolymer, Inc. Transdermal anesthetizing solution and method and apparatus for anesthetizing the ear canal and tympanic membrane
US6920956B1 (en) 1999-01-07 2005-07-26 Cabot Safety Intermediate Corporation Detectable earplug and method of manufacture thereof
BR0006003A (en) 1999-03-16 2001-03-06 Cabot Safety Intermediate Corp Hearing protection device and method of manufacturing an ear protection device.
US6129175A (en) 1999-05-07 2000-10-10 Radians, Inc. Acoustical control plastisol earpieces
US6105715A (en) * 1999-11-05 2000-08-22 Aearo Company Multi-color variably attenuating earplug
USD435036S (en) * 1999-11-17 2000-12-12 Koss Corporation Stereophone ear plug
US6695093B1 (en) 2000-01-13 2004-02-24 Aearo Company Earplug
US6484726B1 (en) 2000-06-30 2002-11-26 3M Innovative Properties Company Articulating earplug
US6408981B1 (en) * 2000-09-27 2002-06-25 Saint-Gobain Performance Plastics Corporation Extruded monolithic foam earplug
US6453476B1 (en) 2000-09-27 2002-09-24 Team Wendy, Llc Protective helmet
EP1192920A1 (en) 2000-09-29 2002-04-03 The Procter & Gamble Company Comfortable foam-based ear plugs
US20020124851A1 (en) * 2000-11-28 2002-09-12 Richard Knauer Hearing protective device and method of making same
AU2002324660A1 (en) * 2001-08-10 2003-02-24 Bacou-Dalloz Usa Safety, Inc. Earplug with stiffener
TW200305346A (en) * 2002-04-12 2003-10-16 Nap Entpr Co Ltd Ear pad, and earphone with the pad
US20040045558A1 (en) * 2002-09-06 2004-03-11 Duncan Taylor Earplug and method of manufacturing an earplug
US7078443B2 (en) * 2003-10-22 2006-07-18 Intellectual Property Holdings, Llc Viscoelastic foam layer and composition
US8389588B2 (en) 2003-12-04 2013-03-05 Kensey Nash Corporation Bi-phasic compressed porous reinforcement materials suitable for implant
US7723395B2 (en) * 2004-04-29 2010-05-25 Kensey Nash Corporation Compressed porous materials suitable for implant
US8133500B2 (en) * 2003-12-04 2012-03-13 Kensey Nash Bvf Technology, Llc Compressed high density fibrous polymers suitable for implant
DE102004033719A1 (en) * 2004-07-13 2006-02-16 Uvex Arbeitsschutz Gmbh Earplug is made of a biopolymer (especially of a paper foam) rather than of polyurethane foam so as to allow for eco-friendly disposal
US20060037143A1 (en) * 2004-08-18 2006-02-23 Ronald Green Meditation support
US20080207790A1 (en) * 2004-10-15 2008-08-28 Knauer Richard E Earplug
US7475686B2 (en) * 2004-10-15 2009-01-13 Cabot Safety Intermediate Corporation Earplug
US20060241197A1 (en) * 2005-04-25 2006-10-26 Velsicol Chemical Corporation Plasticizer compositions for flexible closed cell foams
US7510046B2 (en) 2005-10-10 2009-03-31 Cabot Safety Intermediate Corporation Low attenuating push-in earplug with integral handle
US8596279B2 (en) 2005-11-09 2013-12-03 3M Innovative Properties Company Offset stem for earplug and earplug formed therewith
US8844777B2 (en) * 2005-11-14 2014-09-30 Loretta Ivison Pin moor
US20070125812A1 (en) * 2005-11-14 2007-06-07 Loretta Ivison Pin moor
US20070234629A1 (en) * 2006-02-06 2007-10-11 Brooks Joseph D Self-securing spring bobber
US7837005B2 (en) * 2006-03-21 2010-11-23 Etymotic Research, Inc. Mushroom-shaped push-in foam eartip for use with high-fidelity insert earphones
US7841446B2 (en) * 2007-04-30 2010-11-30 Kimberly-Clark Worldwide, Inc. Bandless hearing protector and method
US7708110B2 (en) * 2007-04-30 2010-05-04 Kimberly-Clark Worldwide, Inc. Bandless hearing protector and method
US7648005B2 (en) * 2007-04-30 2010-01-19 Kimberly-Clark Worldwide, Inc. Clip-style hearing protector
US7984716B2 (en) * 2007-06-22 2011-07-26 Kimberly-Clark Worldwide Inc. Self-conforming sound attenuation earplug
US20100100043A1 (en) * 2007-10-05 2010-04-22 Racenet Danyel J Flexible Access Device For Use In Surgical Procedure
US20090277462A1 (en) * 2008-05-09 2009-11-12 3M Innovative Properties Company Foam earplug in deformable sheath
US8113207B2 (en) * 2008-08-22 2012-02-14 Kimberly-Clark Worldwide, Inc. Self-conforming sound attenuation earplug
US20100195860A1 (en) * 2009-02-05 2010-08-05 Cher Becker Soft shell in-ear earphones with miniature speaker inserts
WO2010135688A1 (en) * 2009-05-22 2010-11-25 Sperian Hearing Protection, Llc Improved eartip
US8671949B2 (en) 2009-06-23 2014-03-18 3M Innovative Properties Company Headgear-earwear assembly and a method of assembling same
US8590539B2 (en) 2009-06-23 2013-11-26 3M Innovative Properties Company Headgear-earwear assembly and a method of assembling same
EP2461777A1 (en) * 2009-08-04 2012-06-13 Hearing Components, Inc. Foam compositions with enhanced sound attenuation
US8758436B2 (en) * 2009-09-17 2014-06-24 Lawrence G. Clayton Ear insert for relief of TMJ discomfort and headaches
US9198800B2 (en) 2009-10-30 2015-12-01 Etymotic Research, Inc. Electronic earplug for providing communication and protection
US20140352590A1 (en) * 2010-12-29 2014-12-04 Loretta Ivison Pin moor
US8413663B2 (en) 2011-02-04 2013-04-09 Moldex Metric, Inc. Push-in type of earplug with improved insertion stem
WO2015077108A1 (en) * 2013-11-20 2015-05-28 TMJ Health LLC Ear insert for relief of tmj discomfort and headaches
US20150182382A1 (en) * 2013-12-27 2015-07-02 Custom Protect Ear, Inc. Pre-lubricated earplugs and the method of production thereof
JP1568084S (en) * 2015-12-24 2017-01-30
USD789911S1 (en) * 2016-03-14 2017-06-20 Chris J. Katopis Earbud
USD804455S1 (en) * 2016-03-25 2017-12-05 1More Inc. Earphone
US20200276054A1 (en) * 2018-08-21 2020-09-03 Howard S. Leight Compressible Fit Earplug With Planar Insert
US20200121507A1 (en) 2018-10-18 2020-04-23 Moldex-Metric, Inc. Foam earplug with transdermal material
USD1055030S1 (en) * 2022-08-03 2024-12-24 Panasonic Intellectual Property Management Co., Ltd. Earphone

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2262568A (en) * 1939-10-21 1941-11-11 Kenneth L Wade Ear protector
US2538339A (en) * 1949-09-15 1951-01-16 Mary J Thomas Earplug
GB733542A (en) * 1953-10-16 1955-07-13 Gustav Vilhelm Israel Hultgren Improvements relating to ear protectors
US2717596A (en) * 1954-04-26 1955-09-13 John S Knight Cushion mounting for mass impedance resonance filter
US2824558A (en) * 1956-05-24 1958-02-25 Mine Safety Appliances Co Ear plug
US3097059A (en) * 1960-06-23 1963-07-09 Carl G Hoffman Method for forming ear plugs for supporting hearing and receivers
FR1395197A (en) * 1964-04-22 1965-04-09 Protective accessory for otorhinological applications
DE1766350C3 (en) * 1968-05-08 1979-03-22 Klosterfrau Berlin Chemische, Pharmazeutische, Kosmetische Und Diaetetische Erzeugnisse Gmbh, 1000 Berlin Universal noise protection plug

Also Published As

Publication number Publication date
DE2251774C3 (en) 1980-08-28
BE790456A (en) 1973-02-15
NL7214437A (en) 1973-05-01
GB1403097A (en) 1975-08-13
FR2158978A5 (en) 1973-06-15
DE2251774A1 (en) 1973-05-03
HK23080A (en) 1980-05-09
NL169678C (en) 1982-08-16
SE418572B (en) 1981-06-15
SU648055A3 (en) 1979-02-15
USRE29487E (en) 1977-12-06
IT975269B (en) 1974-07-20
JPS4850588A (en) 1973-07-17
DE2251774B2 (en) 1978-10-05
JPS5549859B2 (en) 1980-12-15
US3811437A (en) 1974-05-21
NL169678B (en) 1982-03-16
SE7601690L (en) 1976-02-16
SE399640B (en) 1978-02-27
CH558171A (en) 1975-01-31
CA1022470B (en) 1977-12-13

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