US3908200A - Ear protecting device - Google Patents

Ear protecting device Download PDF

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Publication number
US3908200A
US3908200A US469381A US46938174A US3908200A US 3908200 A US3908200 A US 3908200A US 469381 A US469381 A US 469381A US 46938174 A US46938174 A US 46938174A US 3908200 A US3908200 A US 3908200A
Authority
US
United States
Prior art keywords
pad
shell
sealing pad
flange
head
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 - Lifetime
Application number
US469381A
Other languages
English (en)
Inventor
Tord Rune Lundin
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.)
Honeywell Safety Products Sweden AB
Original Assignee
Gullfiber AB
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 Gullfiber AB filed Critical Gullfiber AB
Application granted granted Critical
Publication of US3908200A publication Critical patent/US3908200A/en
Assigned to BILSOM AB reassignment BILSOM AB ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GEDEVO AB
Assigned to GEDEVO AKTIEBOLAG reassignment GEDEVO AKTIEBOLAG CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE: AUGUST 20, 1986 AND MAY 12, 1987 RESPECTIVELY SWEDEN Assignors: GEDEVELOP AKTIEBOLAG (CHANGED TO), GULLFIBER AKTIEBOLAG (CHANGED TO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • ABSTRACT The invention relates to an ear protecting device of the kind comprising two shells intended to be placed over the ears to be protected and interconnected by a resilient holder means or yoke to which the shells are secured in a manner permitting adjusting their position to the individual shape of the head of the user.
  • Each shell contains an absorber for standing sound waves and an annular soft sealing pad bearing against thehead of the user around the ear.
  • the annular pad of the invention is provided at at least one of its circumferences with a flange limiting deformation in radial direction.
  • flange may be provided at the outer or the inner circumference of the pad or, if desired, at both the inner and the outer circumference.
  • the flange is formed with an outer portion projecting towards, and producing a recess in, the pad.
  • the annular pad is composed of a substantially even bottom portion of some relatively stiff material and a covering portion connected to said bottom portion and made of some relatively more flexible material, said bottom and covering portions encasing a yielding, but not easily compressible medium such as a liquid.
  • thisinvention relates to'a'n ear protectirig device of the type which comprises two shells to be placed aboveone ear each of the user-and interconnectedby'holder me'mbersj'each 'shell having an absorber for standing sound waves"and an annular 'soft sealing pad bearing against the head of the user about the ear.
  • the annular pad is formable and has'for' this MAIN OBJECTS AND ADVANTAGES OF THE INVENTION
  • a sealing pad of this kind must on one hand possess great softness to afford good bearing, and thereby sealing, against various head shapes. On the other hand the pad must have great rigidity to provide efficient damping of low frequencies.
  • one main object of the invention is to provide an ear protecting device the sealing pad of which on one hand has great .softness to avoid direct leakage between the same and the user's head and on the other hand a great acoustic rigidity to provide for effective damping.
  • flange which is devised to limit deformation in radial direction of the pad.
  • the flange has an outer portion projecting towards and into the pad.
  • the flange may be provided at the outer or the inner circumference of the pad. It is also conceivable to provide both the inner and the outer circumference 'of the pad with a bracing flange.
  • FIG. 1 is a. sectional viewof the one shell of an ear protecting device designed according to the invention.
  • FIG. 2 is apartial view on an enlaged scale of the shell shown in FIG. 1.
  • reference numeral 10 denotes a shell made suitable of plastic material and given oval shape.
  • the ear protecting device comprises two such shells which by means of a resilient yoke 12 are retained in position over the two cars of the user.
  • the yoke 12 is connected to each shell by means of a fastening device 14 which in known manner permits adjustment of the yoke relatively to the shell for adaption to varying head shapes.
  • an absorber which has for its purpose to prevent standing sound waves to come into existence within the shell and which may consist of a layer 16 of glass-wool covered by a layer 18 of soft cellular plastic. 7
  • a disc 20 serves as carrier for a pad 24 which has the shape of an oval ring and which is intended to bear against the head of the user around the ear.
  • the interior of the pad is preferably closed and contains a yieldable but not easily compressible medium such as a liquid e.g., water mixed with glycerine.
  • the pad may have a generally even bottom portion 26 of a relatively rigid plastic material which is united by welding with a U-shaped covering 28 of highly flexible or easily deformable material. This covering may be composed of double thin sheets of PVC.
  • the pad 24 is easily formable to the contour of the head while its covering 20 is elastic to limited degree only.
  • the pad 24 has a limited liberty of motion in radial direction which in the shown embodiment is due to a flange 30 which at the outer periphery of the pad extends upwards from the edge portion 32 of the shell over a portion of the pad in its height extension transversely to the disc 20. Further the flange 30 projects with a portion 34 into the pad so that this latter has a corresponding recess straight opposite to the portion 34.
  • the flange 30 imparts to the pad the acoustic rigidity which ensures a substantial improvement of the sound damping capacity as analyzed above.
  • the flange portion 34 permits to mount the pad on the shell without requiring to be fastened rigidly onto the same.
  • the relatively rigid bottom disc 26 projects so much as to be located below the flange portion 34.
  • the pad has capacity of adapting itself in a sealing manner with its plane outer surface 36 to the shape of the head of the user or possible legs of spectacles and the like.
  • the support 30 or 34, respectively, stiffening the pad in lateral direction may be located at the inner periphery of the pad. It is also possible to provide such supports on both sides of said pad.
  • a hearing protection device of the type having a shell containing a sound absorbing means and having a resilient annular sealing pad means located on the shell circumference for placement over the ear and against the head of a user the improvement in the annular sealing pad'resulting in increased damping of sound comprising restraining flange means located on the annular sealing pad, and in contact relationship with the shell, the flange means limiting the deformation of the annular sealing pad .in a radial direction sufficiently to provide acoustic rigidity for damping of sound while retaining flexibility. of the sealing pad edge portion opposite its base to enable leakage proof bearing against the head of the user.
  • a hearing protection device as claimed in claim 1 wherein the restraining flange means is located at both the inside and outside periphery of the sealingpad.
  • the annulaar sealing pad comprises an oval ring-like pad of yieldable but not easily compressible material secured to a rigid annular disc by means of a flexible U-shaped cover, the disc portion being positioned adjacent the shell circumferential edge, the flange means being secured to the shell circumferential edge, the flange means having a portion projecting into and deforming the ring-like pad and extending over the disc to removably retain the sealing pad joined to the shell.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Headphones And Earphones (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US469381A 1973-05-16 1974-05-13 Ear protecting device Expired - Lifetime US3908200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7306940A SE372704B (OSRAM) 1973-05-16 1973-05-16

Publications (1)

Publication Number Publication Date
US3908200A true US3908200A (en) 1975-09-30

Family

ID=20317496

Family Applications (1)

Application Number Title Priority Date Filing Date
US469381A Expired - Lifetime US3908200A (en) 1973-05-16 1974-05-13 Ear protecting device

Country Status (6)

Country Link
US (1) US3908200A (OSRAM)
CA (1) CA1024451A (OSRAM)
DE (1) DE2422820C2 (OSRAM)
GB (1) GB1452352A (OSRAM)
HK (1) HK37279A (OSRAM)
SE (1) SE372704B (OSRAM)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366766A1 (fr) * 1976-09-30 1978-04-28 Gullfiber Ab Ecouteurs et procede pour leur montage
US4465159A (en) * 1983-03-11 1984-08-14 Cabot Corporation Nonlinear ear protecting device
US4542803A (en) * 1984-05-31 1985-09-24 Houng Huang C Detachable inflight headset for civil aircraft
US4572323A (en) * 1983-03-28 1986-02-25 Racal Safety Limited Hearing protectors
EP0199689A3 (en) * 1985-03-25 1987-03-11 Bilsom Ab Earmuff
US4747145A (en) * 1986-11-24 1988-05-24 Telex Communications, Inc. Earcup suspension for headphone
US4754484A (en) * 1986-08-21 1988-06-28 Acs Communications, Inc. Convertible handset/headset for telephone
US4856118A (en) * 1987-02-11 1989-08-15 Bose Corporation Headphone cushioning
US5138722A (en) * 1991-07-02 1992-08-18 David Clark Company Inc. Headset ear seal
US5243709A (en) * 1991-09-04 1993-09-14 Natus Medical, Inc. Acoustically sealing earmuff for an infant
US5500958A (en) * 1994-01-19 1996-03-26 Cabot Safety Corporation Seal plate attachment for earmuffs
US5590213A (en) * 1995-02-15 1996-12-31 David Clark Company Inc. Headset with adjustable headpad
WO1997048296A1 (en) * 1996-06-21 1997-12-24 Cabot Safety Intermediate Corporation Acoustical earmuff with incorporated snap-in foam cushion
USD391575S (en) 1995-04-21 1998-03-03 David Clark Company Inc. Headset earcup
USD398309S (en) 1996-04-18 1998-09-15 David Clark Company Inc. Headset
US6163615A (en) * 1997-08-06 2000-12-19 University Research & Engineers & Associates, Inc. Circumaural ear cup audio seal for use in connection with a headset, ear defender, helmet and the like
US20060166244A1 (en) * 2005-01-14 2006-07-27 The University Of Missouri System DNA markers for increased milk production in cattle
US7162039B1 (en) 1996-02-23 2007-01-09 Matthew G. Callahan Noise barrier apparatus having acoustic wave damping cushions
US20080128198A1 (en) * 2006-12-04 2008-06-05 Yu Du Sound-attenuating earmuff having isolated double-shell structure
US20080263749A1 (en) * 2007-04-30 2008-10-30 Kimberly-Clark Worldwide, Inc. Bandless hearing protection muffs
AU2005253912B2 (en) * 2004-06-16 2009-04-23 Honeywell Safety Products Usa, Inc. Cap for use as hearing protection and method for producing the same
US20090205900A1 (en) * 2008-02-20 2009-08-20 Ricky Wayne Purcell Hearing protection cap
US20110126846A1 (en) * 2009-11-12 2011-06-02 Hill Ralph P Original ear popper stopper pressurized headset
USD658156S1 (en) * 2010-12-02 2012-04-24 Moblissity LLC Collapsible headphone
US8651229B2 (en) * 2012-06-05 2014-02-18 Honeywell International Inc. Hearing protection
USD709479S1 (en) * 2013-01-04 2014-07-22 Barak MELAMED Headphones earpiece
USD722589S1 (en) * 2013-07-31 2015-02-17 Koninklijke Philips N.V. Headphone
USD735419S1 (en) * 2013-10-31 2015-07-28 Moldex-Metric, Inc. Outer shell member for an earmuff
USD794603S1 (en) * 2016-02-23 2017-08-15 Ossic Corporation Earphone
USD814439S1 (en) * 2016-12-01 2018-04-03 Zound Industries International Ab Foldable headphone
US20180177641A1 (en) * 2008-01-11 2018-06-28 Smuffs Llc Sound muffling headwear
USD830993S1 (en) * 2016-06-02 2018-10-16 Zound Industries International Ab Foldable headphone
USD905001S1 (en) * 2018-01-05 2020-12-15 Zound Industries International Ab Headphone
USD905658S1 (en) * 2014-02-10 2020-12-22 New Audio, LLC Adjustment portion of a headphone device
US11700474B2 (en) 2021-06-24 2023-07-11 New Audio LLC Multi-microphone headset
USD1000416S1 (en) 2021-06-24 2023-10-03 New Audio LLC Wireless headphones

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148887A (en) * 1991-04-01 1992-09-22 Gentex Corporation Earcup assembly incorporating mechanical active noise reduction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US572108A (en) * 1896-12-01 De witt c
US2593892A (en) * 1950-04-05 1952-04-22 Elmore A Kindel Earpiece
US2784407A (en) * 1955-10-31 1957-03-12 Ladd John Sonic protector for ears
US3051961A (en) * 1960-05-11 1962-09-04 Clark Co Inc David Ear protctor and seal therefor
US3073410A (en) * 1959-12-30 1963-01-15 Electric Storage Battery Co Headset
US3306991A (en) * 1963-06-04 1967-02-28 Homer J Wood Protective hearing aid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203197A (fr) * 1958-07-25 1960-01-15 Optique Scient L Dispositif auriculaire pour la protection contre les bruits
GB860030A (en) * 1958-10-06 1961-02-01 Mine Safety Appliances Co Ear protecting device
AT284333B (de) * 1968-09-23 1970-09-10 Wilfrid Weltin Gehörschutz

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US572108A (en) * 1896-12-01 De witt c
US2593892A (en) * 1950-04-05 1952-04-22 Elmore A Kindel Earpiece
US2784407A (en) * 1955-10-31 1957-03-12 Ladd John Sonic protector for ears
US3073410A (en) * 1959-12-30 1963-01-15 Electric Storage Battery Co Headset
US3051961A (en) * 1960-05-11 1962-09-04 Clark Co Inc David Ear protctor and seal therefor
US3306991A (en) * 1963-06-04 1967-02-28 Homer J Wood Protective hearing aid

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366766A1 (fr) * 1976-09-30 1978-04-28 Gullfiber Ab Ecouteurs et procede pour leur montage
US4133053A (en) * 1976-09-30 1979-01-09 Gullifiber Ab Ear-pads and assembly procedure
US4465159A (en) * 1983-03-11 1984-08-14 Cabot Corporation Nonlinear ear protecting device
US4572323A (en) * 1983-03-28 1986-02-25 Racal Safety Limited Hearing protectors
US4542803A (en) * 1984-05-31 1985-09-24 Houng Huang C Detachable inflight headset for civil aircraft
EP0199689A3 (en) * 1985-03-25 1987-03-11 Bilsom Ab Earmuff
US4674134A (en) * 1985-03-25 1987-06-23 Bilsom Ab Earmuff having sealing ring including liquid and foam plastic layers
US4754484A (en) * 1986-08-21 1988-06-28 Acs Communications, Inc. Convertible handset/headset for telephone
US4747145A (en) * 1986-11-24 1988-05-24 Telex Communications, Inc. Earcup suspension for headphone
US4856118A (en) * 1987-02-11 1989-08-15 Bose Corporation Headphone cushioning
US5138722A (en) * 1991-07-02 1992-08-18 David Clark Company Inc. Headset ear seal
US5243709A (en) * 1991-09-04 1993-09-14 Natus Medical, Inc. Acoustically sealing earmuff for an infant
US5500958A (en) * 1994-01-19 1996-03-26 Cabot Safety Corporation Seal plate attachment for earmuffs
US5590213A (en) * 1995-02-15 1996-12-31 David Clark Company Inc. Headset with adjustable headpad
USD391575S (en) 1995-04-21 1998-03-03 David Clark Company Inc. Headset earcup
US7162039B1 (en) 1996-02-23 2007-01-09 Matthew G. Callahan Noise barrier apparatus having acoustic wave damping cushions
USD398309S (en) 1996-04-18 1998-09-15 David Clark Company Inc. Headset
WO1997048296A1 (en) * 1996-06-21 1997-12-24 Cabot Safety Intermediate Corporation Acoustical earmuff with incorporated snap-in foam cushion
US6163615A (en) * 1997-08-06 2000-12-19 University Research & Engineers & Associates, Inc. Circumaural ear cup audio seal for use in connection with a headset, ear defender, helmet and the like
AU2005253912B2 (en) * 2004-06-16 2009-04-23 Honeywell Safety Products Usa, Inc. Cap for use as hearing protection and method for producing the same
US20060166244A1 (en) * 2005-01-14 2006-07-27 The University Of Missouri System DNA markers for increased milk production in cattle
US20080128198A1 (en) * 2006-12-04 2008-06-05 Yu Du Sound-attenuating earmuff having isolated double-shell structure
US7703572B2 (en) 2006-12-04 2010-04-27 Adaptive Technologies, Inc. Sound-attenuating earmuff having isolated double-shell structure
US20080263749A1 (en) * 2007-04-30 2008-10-30 Kimberly-Clark Worldwide, Inc. Bandless hearing protection muffs
US20180177641A1 (en) * 2008-01-11 2018-06-28 Smuffs Llc Sound muffling headwear
US20090205900A1 (en) * 2008-02-20 2009-08-20 Ricky Wayne Purcell Hearing protection cap
US7717226B2 (en) * 2008-02-20 2010-05-18 Kimberly-Clark Worldwide, Inc. Hearing protection cap
US20110126846A1 (en) * 2009-11-12 2011-06-02 Hill Ralph P Original ear popper stopper pressurized headset
USD658156S1 (en) * 2010-12-02 2012-04-24 Moblissity LLC Collapsible headphone
US8651229B2 (en) * 2012-06-05 2014-02-18 Honeywell International Inc. Hearing protection
USD709479S1 (en) * 2013-01-04 2014-07-22 Barak MELAMED Headphones earpiece
USD722589S1 (en) * 2013-07-31 2015-02-17 Koninklijke Philips N.V. Headphone
USD735419S1 (en) * 2013-10-31 2015-07-28 Moldex-Metric, Inc. Outer shell member for an earmuff
USD905658S1 (en) * 2014-02-10 2020-12-22 New Audio, LLC Adjustment portion of a headphone device
USD794603S1 (en) * 2016-02-23 2017-08-15 Ossic Corporation Earphone
USD830993S1 (en) * 2016-06-02 2018-10-16 Zound Industries International Ab Foldable headphone
USD814439S1 (en) * 2016-12-01 2018-04-03 Zound Industries International Ab Foldable headphone
USD905001S1 (en) * 2018-01-05 2020-12-15 Zound Industries International Ab Headphone
US11700474B2 (en) 2021-06-24 2023-07-11 New Audio LLC Multi-microphone headset
USD1000416S1 (en) 2021-06-24 2023-10-03 New Audio LLC Wireless headphones
US12348926B2 (en) 2021-06-24 2025-07-01 New Audio LLC Multi-microphone headset

Also Published As

Publication number Publication date
GB1452352A (en) 1976-10-13
DE2422820C2 (de) 1982-10-21
SE372704B (OSRAM) 1975-01-13
CA1024451A (en) 1978-01-17
DE2422820A1 (de) 1974-12-05
HK37279A (en) 1979-06-22

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AS Assignment

Owner name: GEDEVO AKTIEBOLAG

Free format text: CHANGE OF NAME;ASSIGNORS:GULLFIBER AKTIEBOLAG (CHANGED TO);GEDEVELOP AKTIEBOLAG (CHANGED TO);REEL/FRAME:005027/0515;SIGNING DATES FROM 19860220 TO 19880819

Owner name: BILSOM AB, SWEDEN

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Effective date: 19890110