US3862451A - Hearing protector mounting - Google Patents

Hearing protector mounting Download PDF

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Publication number
US3862451A
US3862451A US404620A US40462073A US3862451A US 3862451 A US3862451 A US 3862451A US 404620 A US404620 A US 404620A US 40462073 A US40462073 A US 40462073A US 3862451 A US3862451 A US 3862451A
Authority
US
United States
Prior art keywords
stud
headband
shell
positioning member
opening
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
US404620A
Other languages
English (en)
Inventor
Roy H Miller
Charles J Boyer
William R Bohner
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.)
C & D ACQUISITION CORP A CORP OF DE
ESB Inc
Dalloz Safety Inc
Credit Lyonnais SA New York
Original Assignee
ESB 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 ESB Inc filed Critical ESB Inc
Priority to US404620A priority Critical patent/US3862451A/en
Priority to GB3194274A priority patent/GB1436646A/en
Priority to AU71753/74A priority patent/AU479431B2/en
Priority to CA205,910A priority patent/CA998000A/en
Priority to DE2436713A priority patent/DE2436713A1/de
Priority to JP49088627A priority patent/JPS5065095A/ja
Priority to SE7410227A priority patent/SE7410227L/xx
Application granted granted Critical
Publication of US3862451A publication Critical patent/US3862451A/en
Assigned to MANUFACTURERS HANOVER COMMERICIAL CORPORATION, A CORP. OF NY. reassignment MANUFACTURERS HANOVER COMMERICIAL CORPORATION, A CORP. OF NY. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: C & D ACQUISITION CORP.
Assigned to C & D ACQUISITION CORP., A CORP. OF DE. reassignment C & D ACQUISITION CORP., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INCO SAFETY PRODUCTS COMPANY
Assigned to BANKERS TRUST COMPANY, A NEW YORK BANKING CORP. reassignment BANKERS TRUST COMPANY, A NEW YORK BANKING CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WGM SAFETY CORP. A CORP. OF DE
Assigned to WGM SAFETY CORP., FORMERLY WGM HOLDINGS reassignment WGM SAFETY CORP., FORMERLY WGM HOLDINGS ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WGM SAFETY CORP., 2ND AVE. AND WASHINGTON STS., READING, PA. 19603, A CORP. OF DE.
Anticipated expiration legal-status Critical
Assigned to CREDIT LYONNAIS, NEW YORK BRANCH reassignment CREDIT LYONNAIS, NEW YORK BRANCH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BANKERS TRUST COMPANY
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

  • the headband is stiff enough to maintain the required pressure. Users find that it is desirable to have freedom in the angular location of the headband along an axis roughly parallel to the axis of the ear canal so that the band may be located say under the chin or alternately at the top of the head or at the nape of the neck.
  • the hearing protector is worn with a protective hat, the first or last positions are nearly mandatory.
  • a safety headband and mounting for the flexible and adjustable attachment of a hearing protector earcup thereto comprises a resiliant arcuate head encompassing member. Openings are located near each end thereof.
  • the earcup for attaching to the headband includes a stud protruding more or less perpendicularly from the external surface of the earcup opposite to the ear opening thereof and at the approximate center of the earcup.
  • a first positioning piece, in shape approximately a portion of a sphere with an axial hole therethrough is located on the stud. The base of the positioning piece faces and abutts the earcup.
  • a second positioning piece of a shape similar to the first is likewise located on the stud in facing relationship to the first positioning piece and having its base facing away from the base of the first positioning piece.
  • a nut, threaaded on the stud serves to maintain the positions of the two positioning pieces with respect to the stud and the earcup.
  • the stud is also located in the opening in the headband with the first positioning piece on one side and the second positioning piece on the other.
  • the opening in the end of the headband is greater than the diameter of the stud but less than the diameter of either of the two positioning pieces. The loose fit of the positioning pieces in the opening provides a desired freedom of position between earpiece and headband.
  • the openings in the two ends of. the headband comprise a series of interconnected holes, the diameter of the several holes being less than the diameter of the base of either positioning piece and the opening between holes being greater than the diameter of the stud.
  • the multiple openings provide adjustment between the earcup and the top of the headband.
  • the safety headband and mounting of the invention can be made from non-metallic parts so as to be non-conductive.
  • the action of the spherical segments in the holes at the ends of the headband provide a complete freedom of angular movement within any chosen design limits and the location of the headband with respect to the wearers head is completely unrestricted.
  • the mounting of the invention requires a minimum of parts.
  • the first positioning piece may form a part of the earcup and the second may be formed as a part of the nut.
  • a further and purposeful feature of the mounting means of the invention is that by providing a suitable bearing ridge on the surface of the earcup, abnormal strains on the mounting studs due to handling of the ear protector can be alleviated.
  • FIG. 1 depicts in isometric form the complete headband and mounting of the invention
  • FIG. 2 depicts the cross section 22 of FIG. 1;
  • FIG. 3 depicts a second embodiment of the headband made with the invention.
  • FIG. 4 depicts an embodiment of the invention to provide protection against over stressing of the earcup mounting stud.
  • FIG. 1 serves to show the assembly of a headband l0 and two hearing protector earcups l2 embodying the present invention.
  • l0 depicts the headband at a point defining the hole 14 therethrough.
  • the earcup 12 comprises a shell as shown.
  • a resilient torroidal member 16 attached to the open end 32 thereof forms a headseal for the earcup.
  • a pressure transmitting fluid 18 fills the torroidal member 16 and serves to make the seal conform to any irregularities in the surface of the head of the wearer.
  • a foam lining 20 serves to reduce certain echos, etc., within the ear containing portion of the shell 12.
  • a threaded stud 30 passes through the shell approximately perpendicular to the surface ofthe open end of the shell 32 and at the approximate center of the shell.
  • a first positioning member 34 having an axial hole therethrough and having a convexedly curved surface is located on the stud 30 so that its base faces the shell and the curved surface faces away from the shell.
  • the shape of the curved surface of the positioning member is approximately that of a portion of a sphere as shown.
  • a second positioning member 36 of approximately the same shape as the first member 34 is also located on stud 30 in facing relationship to member 34 so that its curved surface faces the shell 12 and its base faces away from shell 12.
  • a nut 38 serves to clamp the two positioning members 34 and 36 together. It is to be noted that the hole 14 is larger than the stud 30 but smaller than the largest diameter of the positioning members 34 and 36.
  • the protectors may take any angular position in the plane of the drawings as shown by double ended arrow 40 and in any other plane within the limits noted above. Because the positioning members are spherical in shape, there is no possibility of the headband jambing thereon as might happen if the member were conical, etc. Also, the headband may take any angular position about the axis of the stud 30 as indicated by the double ended arrow 42 (FIG. 1).
  • FIG. 1 there is no provision for altering the distance from the axis of the users ears (approximately that of the studs 30) to the top of the bow of the headband l0. Adjustment may be provided by adding additional holes in the ends of headband 10. However, if this is done, the increments of adjustment must of necessity be fairly large. Also, in making the head height adjustment in such a design it would be necessary to completely remove the nut with the possibility of its loss.
  • a series of interconnected holes 46 are shown in the headband 44 of FIG. 3, a series of interconnected holes 46 are shown. The interconnected holes provide a single opening having sides of a roughly depressed scallop shape and roughly semicircular ends.
  • the distance 48 across the narrow sections of this opening should be greater than the diameter of the stud 30 and that the distance of greatest clear diameter 49 should be less than the greatest diameter of the positioning members.
  • the opening in the headband comprises at least one area having a minimum diameter greater than the diameter of the stud and less than an intermediate diameter, the intermediate diameter being smaller than the greatest diameter of the positioning members, the opening including at least two areas having a minimum diameter greater than the intermediate diameter and smaller than the largest diameter of the two positioning pieces.
  • FIG. 4 With the design of FIG. 2 the entire torque of a twist of the shell about an axis perpendicular to the plane of the paper will be placed upon the stud.
  • the stress on the stud can be considerably reduced by the construction shown in FIG. 4.
  • a portion 50 of the shell in the vicinity of the stud 52 is raised in comparison to the design of FIG. 2.
  • the shelf, or ring so formed on the shell is dimensioned so that the edge 54 of of the headband 56 engages the shell 50 when the shell 50 is twisted relative to the headband 56.
  • the stress on stud 52 is now mostly tension rather than twist as found in the design of FIG. 2 and the forces which the stud 52 will withstand are correspondingly greater.
  • FIG. 4 This construction is shown in FIG. 4.
  • the positioning member 58 is shown as a part of shell 50 and positioning member 60 is shown as a part of nut 62.
  • the hearing protector comprising at least one earcup the earcup comprising a shell with an ear opening and having a threaded mounting stud extending approximately perpendicularly from the side of the shell away from the ear opening near the center of the shell. and a resilient headband the improvement which comprises:
  • a second positioning member similar in shape to the first positioning member located on the stud the convexedly curved surface of the second positioning member facing toward the convexedly curved surface of the first positioning member;
  • the headband being located between said first and second positioning members and defining near its end an opening, the opening being large enough to permit passage of the stud but not sufficient to permit passage of the first or second positioning members;
  • a nut defining a threaded opening mating with the thread of the stud, the nut located on the stud away from the convexedly curved surface of the second positioning member.
  • a hearing protector as defined in claim 1 including a means forming a part of the shell for limiting angular motion of the shell with respect to the headband about all areas, except about the axis of the stud.

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)
  • Helmets And Other Head Coverings (AREA)
US404620A 1973-10-09 1973-10-09 Hearing protector mounting Expired - Lifetime US3862451A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US404620A US3862451A (en) 1973-10-09 1973-10-09 Hearing protector mounting
GB3194274A GB1436646A (en) 1973-10-09 1974-07-18 Hearing protectors
AU71753/74A AU479431B2 (en) 1973-10-09 1974-07-29 Hearing protectors
CA205,910A CA998000A (en) 1973-10-09 1974-07-30 Hearing protector mounting
DE2436713A DE2436713A1 (de) 1973-10-09 1974-07-30 Vorrichtung zur befestigung von kopfhoerer- oder schallschutzmuscheln
JP49088627A JPS5065095A (enrdf_load_stackoverflow) 1973-10-09 1974-08-01
SE7410227A SE7410227L (enrdf_load_stackoverflow) 1973-10-09 1974-08-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404620A US3862451A (en) 1973-10-09 1973-10-09 Hearing protector mounting

Publications (1)

Publication Number Publication Date
US3862451A true US3862451A (en) 1975-01-28

Family

ID=23600355

Family Applications (1)

Application Number Title Priority Date Filing Date
US404620A Expired - Lifetime US3862451A (en) 1973-10-09 1973-10-09 Hearing protector mounting

Country Status (6)

Country Link
US (1) US3862451A (enrdf_load_stackoverflow)
JP (1) JPS5065095A (enrdf_load_stackoverflow)
CA (1) CA998000A (enrdf_load_stackoverflow)
DE (1) DE2436713A1 (enrdf_load_stackoverflow)
GB (1) GB1436646A (enrdf_load_stackoverflow)
SE (1) SE7410227L (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD298670S (en) 1986-01-10 1988-11-22 Leif Palmaer Hearing protector
US4856118A (en) * 1987-02-11 1989-08-15 Bose Corporation Headphone cushioning
US5009228A (en) * 1988-09-19 1991-04-23 Clark Frank L Device for relieving ear pain
US5138722A (en) * 1991-07-02 1992-08-18 David Clark Company Inc. Headset ear seal
US5590213A (en) * 1995-02-15 1996-12-31 David Clark Company Inc. Headset with adjustable headpad
US5647377A (en) * 1996-03-19 1997-07-15 Shinabarger; Joe E. Noise suppressor apparatus
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
US5911314A (en) * 1998-03-31 1999-06-15 David Clark Company Inc. Headset ear seal
US6611963B2 (en) * 2001-10-26 2003-09-02 Bacon Usa Safety, Inc. Wire band earmuff
US12232931B2 (en) 2020-11-30 2025-02-25 Milwaukee Electric Tool Corporation Earmuffs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63103623U (enrdf_load_stackoverflow) * 1986-12-26 1988-07-05
DE102022125999A1 (de) * 2022-10-07 2024-04-18 Loskill/Naderi GbR (vertretungsberechtigte Gesellschafter: Dr. Joachim Loskill, 53111 Bonn; Bastian Naderi, 51143 Köln) Massage- und Triggervorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1452851A (en) * 1922-09-30 1923-04-24 Radiotive Corp Head receiver for telephones
US2420245A (en) * 1945-10-26 1947-05-06 Hurst Samuel Plastic ear muff
US2717792A (en) * 1952-01-30 1955-09-13 Beech Aircraft Corp Seal for aircraft control member
US3401390A (en) * 1965-05-28 1968-09-10 Whittaker Corp Adjustable positioning and support device for antenna reflector panels
US3505684A (en) * 1969-03-03 1970-04-14 American Optical Corp Attachment mounting means for hearing protector ear cups
US3579640A (en) * 1970-02-11 1971-05-25 American Optical Corp Hearing protector headsets

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1452851A (en) * 1922-09-30 1923-04-24 Radiotive Corp Head receiver for telephones
US2420245A (en) * 1945-10-26 1947-05-06 Hurst Samuel Plastic ear muff
US2717792A (en) * 1952-01-30 1955-09-13 Beech Aircraft Corp Seal for aircraft control member
US3401390A (en) * 1965-05-28 1968-09-10 Whittaker Corp Adjustable positioning and support device for antenna reflector panels
US3505684A (en) * 1969-03-03 1970-04-14 American Optical Corp Attachment mounting means for hearing protector ear cups
US3579640A (en) * 1970-02-11 1971-05-25 American Optical Corp Hearing protector headsets

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD298670S (en) 1986-01-10 1988-11-22 Leif Palmaer Hearing protector
US4856118A (en) * 1987-02-11 1989-08-15 Bose Corporation Headphone cushioning
US5009228A (en) * 1988-09-19 1991-04-23 Clark Frank L Device for relieving ear pain
US5138722A (en) * 1991-07-02 1992-08-18 David Clark Company Inc. Headset ear seal
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
US5647377A (en) * 1996-03-19 1997-07-15 Shinabarger; Joe E. Noise suppressor apparatus
USD398309S (en) 1996-04-18 1998-09-15 David Clark Company Inc. Headset
US5911314A (en) * 1998-03-31 1999-06-15 David Clark Company Inc. Headset ear seal
US6611963B2 (en) * 2001-10-26 2003-09-02 Bacon Usa Safety, Inc. Wire band earmuff
US12232931B2 (en) 2020-11-30 2025-02-25 Milwaukee Electric Tool Corporation Earmuffs

Also Published As

Publication number Publication date
SE7410227L (enrdf_load_stackoverflow) 1975-04-10
GB1436646A (en) 1976-05-19
JPS5065095A (enrdf_load_stackoverflow) 1975-06-02
AU7175374A (en) 1976-01-29
CA998000A (en) 1976-10-05
DE2436713A1 (de) 1975-04-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: C & D ACQUISITION CORP., 280 PARK AVE., NEW YORK,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INCO SAFETY PRODUCTS COMPANY;REEL/FRAME:003955/0259

Effective date: 19810730

Owner name: MANUFACTURERS HANOVER COMMERICIAL CORPORATION, 121

Free format text: SECURITY INTEREST;ASSIGNOR:C & D ACQUISITION CORP.;REEL/FRAME:003955/0272

Effective date: 19810730

Owner name: C & D ACQUISITION CORP., A CORP. OF DE., NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INCO SAFETY PRODUCTS COMPANY;REEL/FRAME:003955/0259

Effective date: 19810730

Owner name: MANUFACTURERS HANOVER COMMERICIAL CORPORATION, A C

Free format text: SECURITY INTEREST;ASSIGNOR:C & D ACQUISITION CORP.;REEL/FRAME:003955/0272

Effective date: 19810730

AS Assignment

Owner name: BANKERS TRUST COMPANY, A NEW YORK BANKING CORP.

Free format text: SECURITY INTEREST;ASSIGNOR:WGM SAFETY CORP. A CORP. OF DE;REEL/FRAME:005252/0210

Effective date: 19891024

Owner name: WGM SAFETY CORP., FORMERLY WGM HOLDINGS, PENNSYLVA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WGM SAFETY CORP., 2ND AVE. AND WASHINGTON STS., READING,PA. 19603, A CORP. OF DE.;REEL/FRAME:005249/0658

Effective date: 19891024

AS Assignment

Owner name: CREDIT LYONNAIS, NEW YORK BRANCH, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BANKERS TRUST COMPANY;REEL/FRAME:006713/0904

Effective date: 19930915