US3721993A - Auditory protection on safety helmets - Google Patents

Auditory protection on safety helmets Download PDF

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Publication number
US3721993A
US3721993A US00123712A US3721993DA US3721993A US 3721993 A US3721993 A US 3721993A US 00123712 A US00123712 A US 00123712A US 3721993D A US3721993D A US 3721993DA US 3721993 A US3721993 A US 3721993A
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US
United States
Prior art keywords
arm
attachment
helmet
ear muff
housing
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
US00123712A
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English (en)
Inventor
B Lonnstedt
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Individual
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Individual
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Filing date
Publication date
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Publication of US3721993A publication Critical patent/US3721993A/en
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S2/00—Apparel
    • Y10S2/908—Guard or protector having a hook-loop type fastener
    • Y10S2/909—Head protector, e.g. helmet, goggles

Definitions

  • the present invention relates to an arrangement for preventing auditory damage and keeping out irritating noises. It consists of ear muffs displaceable on clamps pivotably arranged with attachment units on a safety helmet.- The invention is characterized mainly in that each attachment unit on the helmet is provided with, in addition to attaching means for pivotable attachment on the safety helmet, adjusting means acting on the clamp which is attached to the attachment unit on the hehnet and determines the contact pressure. As a result, the ear muffs can be easilylifted off, even with a gloved hand, and swung up to a resting position on the safety helmet.
  • the aim of the present invention is thus to produce an auditory protection arrangement attached to a safety helmet wherein the arrangement iseffective, comfortable to wear and easy to temporarily remove and put on again.
  • Another objective is to provide an arrangement which is shock-proof i.e. prevents contact between between its outerend and the helmet, a housing support and an attachment housing containing the arm and the adjusting means, the housing support lying closest to the helmet. Consequently, the attachment unitis easy to attach to different types ofhelmets and can thus be used to equip existing helmets with good auditory protection.
  • the housing support of a flexible, wear resistant material having low friction and to shape it so that it has, in cross section, increasing thickness-from 'a center hole towards the periphery, and that it terminates at the periphery with a knife-like edge against the safety helmet. 0n the side which runs along the periphery and faces the attachment housing,
  • this housing support is provided with a circumferential groove for securing and tightening against said attachment housing.
  • the adjusting means act on ends of legs of the arm or clamp, these legs being spring shaped.
  • the adjusting means consist of an adjusting screw which is easily .turnable from the outside of the attachment housing and is provided on the inside of said attachment housing with a clamp holder for the leg ends of the clamp, said leg ends being situated in said attachment housing.
  • the clamp holder is moved thereby altering thecontact pressure.
  • the legs supporting the ear muff preferably extend through guide slots on the underside of the attachment hood, these guide slots allowing the clamp to move a certain distance either out from or in towards .the safety helmet.
  • Each guide slot consists of two mutually parallel, laterally displaced slot portions, an outer slot portion opening into the the inside and the outside of the safety helmet and is insulated against high voltages.
  • a third purpose is to provide an arrangement which is hygienically acceptable, even after prolonged usage, and maintains its effectiveness.
  • each helmet attachment unit with, in addition to attaching means for pivotable attachment on the safety helmet, adjusting means for adjusting the contact pressure of th'e'ear muffs, the adjusting means acting on thearm which is attached to the helmets attachment unit and determines the contact pressure.
  • the ear muffs can be easily lifted off, even with a gloved hand, and swung up to a resting position on the safety helmet, forwards or backwards.
  • each wearer can easily adjust the contact pressure individually, either increasing or decreasing it with the desired accuracy, in comparison with the known method of simply reshaping the arm.
  • the attachment unit can be advantageously designed to consist of an inner fastener which, by means of a washer, contacts the inside of the helmet and has one end running through a hole in the side of the helmet, and also engages an outer fastener bearing against the helmet.
  • This outer fastener pivotably supports,
  • the attachment housing is preferably insulating even for high voltages so that electrical contact is prevented between the inside and the outside of the safety helmet.
  • the sealing ring on the casing of the ear muff and lying against the wearers head is releasably adherred to said casing. This means that the sealing ring, which has become soiled and stiff after prolonged usage, can be quickly and ,easily replaced, thus maintaining the effectiveness of the auditory protection arrangement.
  • FIG. 1 shows a safety helmet with a pivotably attached ear muff; v
  • FIG. 2 is asectional view of the ear muff with a replaceable sealing ring
  • FIG. 3 is an enlarged side view of the helmet attachment unit and FIG. .4 is a rear view of the attachment housing.
  • the safety helmet 1 is provided with an auditory protection arrangement in the form of ear muffs 2 (only one is shown in the figure) which are displaceable on arms or clamps 4 by means of ear muff holders 3.
  • Each clamp 4 consists of 2 mm thick stainless spring wire that is bent into a U-shape with the open ends of the legs 5 secured in an attachment unit 6 which is attached to the helmet 1.
  • each ear muff 2 consists of a dome-shaped plastic casing 7, internally provided with about a 10 mm thickness of foam plastic which contacts the walls of said casing 7.
  • a plane edge 9 runs along the periphery of the casing 7.
  • a sealing ring 10 which consists of foam plastics 11, enclosed in a supple guard 12 of thin plastics which, by means of a layer of tape 13, is removably secured on the plane edge 9.
  • the purpose of the sealing ring 10 is to obtain good sealing between the casing 7 and the persons head. This requires good contact, which, in-
  • sealing ring 10 retains its suppleness. Since the plastics material tends to age, the sealing ring has been made easily removable thus having a renewing effect on the arrangement and making it more acceptable for use.
  • the sealing ring can be made replaceable in other ways, e.g. by using Velcro tape or by having one or more locking rings press the sealing ring 10 tight against the casing 7.
  • the ear muff 2 and the arm 4 can be rotated about the attachment unit 6 on the safety helmet 1 so that said ear muff can be turned up on the helmet e.g. to the position indicated by the broken lines.
  • This is made possible by shaping the attachment unit 6, according to FIG. 3, in the following manner.
  • an inner fastener 14 in this case a screw, which contacts the inside of the helmet via a washer 15 on said helmet and runs through a hole 1.6 in the side of the helmet. The diameter of this hole is slightly greater than the diameter of the threaded part of the inner fastener 14.
  • the distance of the hole 16 from the edge 17 of the helmet is adapted to suit the shape of the helmet Laterally, the hole ought to be placed essentially on a vertical center line through the wearers ear.
  • An outer fastener 18, shaped as a circular cylinder, is provided in one end with a female-threaded hole 19 and in the other end with a slotted hexagonal head 20. This fastener 18 is in secure engagement with the threaded part of the inner fastener 14 and bears against the outside of the helmet.
  • the outer fastener 18 is made of plastics and thus is insulating.
  • a housing support 21 and an attachment housing 22 are pivotably attached on the outer fastener 18, between the helmet 1 and the hexagonal head 20.
  • the housing support 21 is made of flexible wear resistant plastics having low friction. Its purpose is to act as a support for the attachment housing 22 against the helmet 1. On the side 24 facing the housing attachment 22,'the housing support 21 is provided with a circumferential groove 25 along its periphery for securing and tightening against said attachment housing 22.
  • the attachment housing 22 is also made of plastics and is in the shape of a dish which is open to the housing support 21. As is evident from FIGS. 3 and 4, the attachment housing is internally provided with stiffeners and a centrally situated hole 26 through which the outer fastener 18 runs. An additional hole 27 is located on the side of the attachment housing 22 above the hole 26. On the underside of the attachment housing are two guide slots 28 symmetrically situated relative to a plane through the center lines for the holes 26 and 27 1 and being longitudinally parallel to said planes. Each placed in the outer slot portions 29 and from there they are moved to the inner slot portions 31 where they normally rest and are prevented by the transverse slots 32 from moving out towards the outer slot portions 29.
  • Each leg 5 forms into a coiled spring 33 which has its longitudinal axis perpendicular to the leg 5 and rests between stiffeners in the attachment housing 22 on each side of the hole 26 and somewhat below the center of said hole.
  • the outer partof each coiled spring 33 is shaped to have an end 34 which terminates at the hole 27 where it is held towards the attachment housing 22 by adjusting means 35 consisting of an arm holder 36 attached to an adjusting screw 37 which is easily turnable in the hole 27 from the outside.
  • the arm holder 36 is provided with recesses engaging stiffeners in the attachment housing 22 in order to prevent said clamp holder from rotating when the adjusting screw 37 is turned. This clamp holder also has recesses for the ends 34.
  • the arm holder 36 When a right-hand threaded adjusting screw is turned clockwise, the arm holder 36 is moved outwards from the helmet and brings the ends 34 with it. The result is that the coiled springs 33 force the legs inwards,towards the helmet. The force of the spring is determined by the amount of the turning. Turning in the other direction results, of course, in decreased spring force i.e. decreased contact pressure against the head of the wearer.
  • the attachment housing 22 is externally provided at the hole 27 with two arrows indicating different turning directions and is marked with (increased pressure) and (decreased pressure).
  • the legs 5 are swingable outwards position 5' on FIG. 3 from the head and the hel-' met-to an extent determined by the length of the inner slot portions 31.
  • the inward movement towards the head and the helmet is limited by the transverse slots 32. Therefore, the positions of said transverse slots can be adapted, together with the shape of the legs 5 and the prestressing in the coiled springs 33, to conform to the smallest possible contact pressure against the head.
  • the clamp 4 can be pivotably secured in the upper part of the attachment housing 22 and its lower part can be affected by adjusting means which can consist of a spring element, e.g. a coiled spring, situated between the outside of the attachment housing 22 and the clamp 4.
  • the compression of the spring element is controlled by an externally turnable adjusting screw located inside the attachment housing. The compression of this coiled spring increases the contact pressure.
  • other types of spring elements can be used.
  • the internal positioning of these elements and the clamp 4 can be varied, as well as the choice of material and shape of the clamp.
  • the clamp 4 can be made of e.g. strip steel having adapted thickness, width and bend.
  • An auditory protection device to be mounted on a safety helmet or the like, comprising an ear muff, a support arm on which said ear muff is mounted, an attachment unit, means mounting the upper end of the arm on said attachment unit for pivotal movement about a forwardly and rearwardly extending axis relative to said attachment unit, means mounting said attachment unit on said safety helmet or the like for forward and rearward vertical swinging movement of said arm and ear muff between a position in which the ear muff is on the ear and a position in which the ear muff is off the ear, spring means acting on the upper end of the arm to bias the ear muff against the head with a contact pressure, and adjusting means to adjust said contact pressure.
  • the spring means comprises a separate spring element that is so mounted that it is engaged by the upper end portion of V comprises two substantially parallel legs that are joined to each other at their ends close to the ear muff, the upper end of each leg being shaped as a coil spring and thus forming said spring means.
  • attachment unit comprises a support attachable to the safety helmet, said support carrying pivotably an attachment housing in which is mounted said upper end of the arm, the spring means and the adjusting means.
  • a device in which the arm comprises two substantially parallel legs that are joined to each other at their ends close to the ear muff, the
  • each leg being shaped as a coil spring and thus forming said spring means, the legs of the arm being led through the side of the attachment housing facing the ear muff in separate guide slots, which allow the legs to swing out, said guide slots each comprising two mutually parallel, laterally displaced slot portions,
  • the adjusting means comprises an adjusting screw that is mounted in the attachment housing and can be turned from the outside, said screw having on the inside of said attachment housing an arm holder for the free end of the arm, so that said arm holder is displaced by turning the adjusting screw, thereby altering the contact pressure for the ear muff.
  • a device in which between the attachment housing and the helmet is mounted a housing support that engages the housing as well as the helmet.
  • a device in which at least the attachment housing and an end portion of said support are made of electrically insulating material.

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)
  • Helmets And Other Head Coverings (AREA)
US00123712A 1970-03-19 1971-03-12 Auditory protection on safety helmets Expired - Lifetime US3721993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE03786/70A SE352527B (fr) 1970-03-19 1970-03-19

Publications (1)

Publication Number Publication Date
US3721993A true US3721993A (en) 1973-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00123712A Expired - Lifetime US3721993A (en) 1970-03-19 1971-03-12 Auditory protection on safety helmets

Country Status (5)

Country Link
US (1) US3721993A (fr)
DE (1) DE2113471B2 (fr)
FR (1) FR2084833A5 (fr)
GB (1) GB1340552A (fr)
SE (1) SE352527B (fr)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027341A (en) * 1975-02-14 1977-06-07 Exel Oy Juncture arrangement between the bow of a hearing protection means and a protective helmet
US4186447A (en) * 1977-07-01 1980-02-05 Palmaer Tore Georg Ear protector attachment for a helmet
US4316290A (en) * 1980-07-18 1982-02-23 Norton Company Ear muff accessory for safety hard hat
US4347631A (en) * 1980-07-18 1982-09-07 Norton Company Ear muff accessory for safety hard hat
US4375702A (en) * 1980-06-23 1983-03-08 Gullfiber Ab Device for mounting an earmuff on a helmet
US20030088905A1 (en) * 2000-12-29 2003-05-15 Dean Bavetta Ear protection device
US20030097706A1 (en) * 2000-04-05 2003-05-29 Legette Brian Edward Apparatus and method for making an ear warmer and an ear warmer frame
US20040187192A1 (en) * 2002-01-28 2004-09-30 Matthew Isom Apparatus and method for making an ear warmer and an ear warmer frame
US20050034217A1 (en) * 2003-08-12 2005-02-17 Healy Teresa S. Ear warmer having a membrane forming a receptacle
US20050034218A1 (en) * 2003-08-12 2005-02-17 Le Gette Brian E. Ear warmer having a curved ear portion
US20050036643A1 (en) * 2003-08-12 2005-02-17 Le Gette Brian E. Ear warmer with a speaker system
US20050034216A1 (en) * 2003-08-12 2005-02-17 Le Gette Brian E. Ear warmer having an external frame
US20080307562A1 (en) * 2007-01-22 2008-12-18 180S, Inc. Ear Protection Device
US20090013448A1 (en) * 2007-07-11 2009-01-15 Lonnie Drosihn Accessory with Light Source
US20090260135A1 (en) * 2006-08-30 2009-10-22 Andreas Stihl Ag & Co. Kg Protective Headgear Combination
USD741550S1 (en) 2014-05-02 2015-10-20 3M Innovative Properties Company Ear muff attachment arm
US20160324248A1 (en) * 2014-01-14 2016-11-10 Artisent, Llc Pivot-Arm Assembly for a Helmet Mounted Headset
USD894494S1 (en) 2006-02-09 2020-08-25 Gentex Corporation Helmet
USD904337S1 (en) * 2016-03-02 2020-12-08 Dolby Laboratories Licensing Corporation Headphones
US10959477B2 (en) 2014-05-02 2021-03-30 3M Innovative Properties Company Ear muff attachment having dual axis of rotation
USD921607S1 (en) * 2016-03-02 2021-06-08 Dolby Laboratories Licensing Corporation Headphones
USD934198S1 (en) * 2019-12-03 2021-10-26 Dolby Laboratories Licensing Corporation Headphones
US11246367B2 (en) 2005-06-17 2022-02-15 Gentex Corporation Mounting system for accessories on a safety helmet
USD944761S1 (en) * 2020-01-02 2022-03-01 Harman International Industries, Incorporated Headphone
US11357280B2 (en) * 2019-02-27 2022-06-14 Macario Sanchez Safety helmet and accessory system that prevents hearing loss at worksites
EP4082374A1 (fr) * 2021-04-26 2022-11-02 Wilcox Industries Corp. Adaptateur circumaural réglable monté sur casque
US11582548B2 (en) 2017-11-21 2023-02-14 3M Innovative Properties Company Cushion for a hearing protector or audio headset
US11672296B2 (en) 2005-06-17 2023-06-13 Gentex Corporation Hinged attachment of headgear to a helmet
USD1004570S1 (en) * 2023-07-18 2023-11-14 Yangpeng Fu Headphone
USD1033449S1 (en) 2021-11-23 2024-07-02 Dyson Technology Limited Display screen or portion thereof with transitional graphical user interface
USD1033616S1 (en) 2021-11-23 2024-07-02 Dyson Technology Limited Air purifier
USD1033478S1 (en) 2021-11-23 2024-07-02 Dyson Technology Limited Display screen or portion thereof with transitional graphical user interface
USD1033479S1 (en) 2021-11-23 2024-07-02 Dyson Technology Limited Display screen or portion thereof with transitional graphical user interface
USD1034515S1 (en) 2021-11-23 2024-07-09 Dyson Technology Limited Headphone
USD1037285S1 (en) 2021-11-23 2024-07-30 Dyson Technology Limited Display panel or portion thereof with a transitional graphical user interface
USD1038066S1 (en) * 2021-11-23 2024-08-06 Dyson Technology Limited Air purifier headphones
USD1038067S1 (en) * 2021-11-23 2024-08-06 Dyson Technology Limited Air purifier headphones
USD1042980S1 (en) 2023-01-16 2024-09-17 Gentex Corporation Mounting rail
USD1042396S1 (en) * 2021-11-23 2024-09-17 Dyson Technology Limited Air purifier headphones

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE423310B (sv) * 1979-05-28 1982-05-03 Bo Gunnar Lonnstedt Festdon for montering av tillbehor, speciellt horselskydd pa skyddshjelm
DE102014002404B4 (de) * 2014-02-11 2016-11-17 Ute Kiehn Montageplatte für einen Gehörschutz mit Hut

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US479185A (en) * 1892-07-19 Ear-muff
US1225422A (en) * 1917-02-07 1917-05-08 Michael Feher Ear-protecting device.
US2622159A (en) * 1950-03-11 1952-12-16 Sydney K Herman Ear pad for earpieces
US3193841A (en) * 1964-02-03 1965-07-13 Frank P Haluska Ear muff mounting structure for headgear
US3263032A (en) * 1963-03-02 1966-07-26 Scanlon Edward Charles Adjustable hinge for ear phone attached to a head support
US3400406A (en) * 1966-05-17 1968-09-10 Leonard Peter Frieder Positioning means for sound attenuating ear cups on safety helmets

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US479185A (en) * 1892-07-19 Ear-muff
US1225422A (en) * 1917-02-07 1917-05-08 Michael Feher Ear-protecting device.
US2622159A (en) * 1950-03-11 1952-12-16 Sydney K Herman Ear pad for earpieces
US3263032A (en) * 1963-03-02 1966-07-26 Scanlon Edward Charles Adjustable hinge for ear phone attached to a head support
US3193841A (en) * 1964-02-03 1965-07-13 Frank P Haluska Ear muff mounting structure for headgear
US3400406A (en) * 1966-05-17 1968-09-10 Leonard Peter Frieder Positioning means for sound attenuating ear cups on safety helmets

Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027341A (en) * 1975-02-14 1977-06-07 Exel Oy Juncture arrangement between the bow of a hearing protection means and a protective helmet
US4186447A (en) * 1977-07-01 1980-02-05 Palmaer Tore Georg Ear protector attachment for a helmet
US4375702A (en) * 1980-06-23 1983-03-08 Gullfiber Ab Device for mounting an earmuff on a helmet
US4316290A (en) * 1980-07-18 1982-02-23 Norton Company Ear muff accessory for safety hard hat
US4347631A (en) * 1980-07-18 1982-09-07 Norton Company Ear muff accessory for safety hard hat
US20030097706A1 (en) * 2000-04-05 2003-05-29 Legette Brian Edward Apparatus and method for making an ear warmer and an ear warmer frame
US6920645B2 (en) 2000-04-05 2005-07-26 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US20070220657A1 (en) * 2000-04-05 2007-09-27 180S, Inc. Apparatus And Method For Making An Ear Warmer And An Ear Warmer Frame
US7617543B2 (en) 2000-04-05 2009-11-17 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US20100175165A1 (en) * 2000-04-05 2010-07-15 180S, Inc. Ear Warmer With Adjustability
US8438666B2 (en) 2000-04-05 2013-05-14 180S, Inc. Ear warmer with adjustability
US7614091B2 (en) 2000-04-05 2009-11-10 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US20050246815A1 (en) * 2000-04-05 2005-11-10 Legette Brian E Apparatus and method for making an ear warmer and an ear warmer frame
US20030088905A1 (en) * 2000-12-29 2003-05-15 Dean Bavetta Ear protection device
US6880174B2 (en) 2000-12-29 2005-04-19 180S, Inc. Ear protection device
US7210173B2 (en) 2000-12-29 2007-05-01 180S, Inc. Ear protection device
US9241517B2 (en) 2000-12-29 2016-01-26 180S, Inc. Ear protection device
US20070199133A1 (en) * 2000-12-29 2007-08-30 180S, Inc. Ear Protection Device
US6978483B2 (en) 2002-01-28 2005-12-27 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US20060206983A1 (en) * 2002-01-28 2006-09-21 Matthew Isom Apparatus and method for making an ear warmer and an ear warmer frame
US7996923B2 (en) 2002-01-28 2011-08-16 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US8713714B2 (en) 2002-01-28 2014-05-06 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US20040187192A1 (en) * 2002-01-28 2004-09-30 Matthew Isom Apparatus and method for making an ear warmer and an ear warmer frame
US7212645B2 (en) 2003-08-12 2007-05-01 180S, Inc. Ear warmer with a speaker system
US20050034216A1 (en) * 2003-08-12 2005-02-17 Le Gette Brian E. Ear warmer having an external frame
US9259355B2 (en) 2003-08-12 2016-02-16 180S, Inc. Ear warmer with fabric member
US9132038B2 (en) 2003-08-12 2015-09-15 180S, Inc. Ear warmer having a curved ear portion
US20080307563A1 (en) * 2003-08-12 2008-12-18 Le Gette Brian E Ear warmer with fabric member
US20070160249A1 (en) * 2003-08-12 2007-07-12 180S, Inc. Ear Warmer With A Speaker System
US7650649B2 (en) 2003-08-12 2010-01-26 180S, Inc. Ear warmer having an external frame
US7222373B2 (en) 2003-08-12 2007-05-29 180S, Inc. Ear warmer having a membrane forming a receptacle
US7962970B2 (en) 2003-08-12 2011-06-21 180S, Inc. Ear warmer having a curved ear portion
US20050034217A1 (en) * 2003-08-12 2005-02-17 Healy Teresa S. Ear warmer having a membrane forming a receptacle
US9066829B2 (en) 2003-08-12 2015-06-30 180S, Inc. Ear warmer with fabric member
US8325961B2 (en) 2003-08-12 2012-12-04 180S, Inc. Ear warmer with a speaker system
US20050036643A1 (en) * 2003-08-12 2005-02-17 Le Gette Brian E. Ear warmer with a speaker system
US10111781B2 (en) 2003-08-12 2018-10-30 180S, Inc. Ear warmer with a substantially continuous surface
US20050034218A1 (en) * 2003-08-12 2005-02-17 Le Gette Brian E. Ear warmer having a curved ear portion
US8861768B2 (en) 2003-08-12 2014-10-14 180S, Inc. Ear warmer with a speaker system
US11246367B2 (en) 2005-06-17 2022-02-15 Gentex Corporation Mounting system for accessories on a safety helmet
US11337478B2 (en) 2005-06-17 2022-05-24 Gentex Corporation Mounting rail for attaching accessories to a safety helmet
US11672296B2 (en) 2005-06-17 2023-06-13 Gentex Corporation Hinged attachment of headgear to a helmet
USD895212S1 (en) 2006-02-09 2020-09-01 Gentex Corporation Helmet
USD894494S1 (en) 2006-02-09 2020-08-25 Gentex Corporation Helmet
USD901082S1 (en) 2006-02-09 2020-11-03 Gentex Corporation Helmet
USD895211S1 (en) 2006-02-09 2020-09-01 Gentex Corporation Helmet
US20090260135A1 (en) * 2006-08-30 2009-10-22 Andreas Stihl Ag & Co. Kg Protective Headgear Combination
US8166575B2 (en) * 2006-08-30 2012-05-01 Andreas Stihl Ag & Co. Kg Protective headgear with a visor and ear muff
US20080307562A1 (en) * 2007-01-22 2008-12-18 180S, Inc. Ear Protection Device
US8443466B2 (en) 2007-01-22 2013-05-21 180S, Inc. Ear protection device
US20090013448A1 (en) * 2007-07-11 2009-01-15 Lonnie Drosihn Accessory with Light Source
US20160324248A1 (en) * 2014-01-14 2016-11-10 Artisent, Llc Pivot-Arm Assembly for a Helmet Mounted Headset
US10617168B2 (en) * 2014-01-14 2020-04-14 Gentex Corporation Pivot-arm assembly for a helmet mounted headset
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USD1033478S1 (en) 2021-11-23 2024-07-02 Dyson Technology Limited Display screen or portion thereof with transitional graphical user interface
USD1033479S1 (en) 2021-11-23 2024-07-02 Dyson Technology Limited Display screen or portion thereof with transitional graphical user interface
USD1034515S1 (en) 2021-11-23 2024-07-09 Dyson Technology Limited Headphone
USD1037285S1 (en) 2021-11-23 2024-07-30 Dyson Technology Limited Display panel or portion thereof with a transitional graphical user interface
USD1038066S1 (en) * 2021-11-23 2024-08-06 Dyson Technology Limited Air purifier headphones
USD1038067S1 (en) * 2021-11-23 2024-08-06 Dyson Technology Limited Air purifier headphones
USD1042396S1 (en) * 2021-11-23 2024-09-17 Dyson Technology Limited Air purifier headphones
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Also Published As

Publication number Publication date
SE352527B (fr) 1973-01-08
DE2113471A1 (de) 1971-10-07
FR2084833A5 (fr) 1971-12-17
GB1340552A (en) 1973-12-12
DE2113471B2 (de) 1978-07-27

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