US3805298A - Ear protector - Google Patents

Ear protector Download PDF

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Publication number
US3805298A
US3805298A US00290695A US29069572A US3805298A US 3805298 A US3805298 A US 3805298A US 00290695 A US00290695 A US 00290695A US 29069572 A US29069572 A US 29069572A US 3805298 A US3805298 A US 3805298A
Authority
US
United States
Prior art keywords
ear
hem
slot
members
packing
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
US00290695A
Other languages
English (en)
Inventor
Y Aho
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3805298A publication Critical patent/US3805298A/en
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

  • An ear protector comprising a pair of cup-like ear members and means connecting said ear members for maintaining the ear protector on the ear position, said ear members having an inner cushion-like packing, a film of plastic material for maintaining said packing in the members, and a slot along an outer circle of the ear pieces into which the hem is fitted, said slot having a depth twice its breadth, whereby when the hem is fitted into the slot the inner circle of the hem is stretched substantially to the maximum degree when it is compelled to come away from the slot.
  • This invention relates to an ear protector having a means for fastening the packing of the ear protector to the ear pieces comprising a hem belonging to the packing made of a plastic membrane and on the circle of the cup-like ear pieces there is provided a slot cooperating with the hem.
  • a soft ring-shaped cushionlike packing between the ear pieces of the ear protector and the skin is generally made of a plastic memberane of about 0.2-0.4 millimeters thick by seaming different pieces and which is filled with plastic foam or liquid.
  • the packing is fastened by means such as glue to its base, a ring-shaped bottom part of the ear pieces, but to make easier for the removal of broken and dirty packings it has become common practice to supply the packing with an outside hem, which is stretched out on the edge of the ear piece and keeps the packing in its place.
  • Ear protectors are often used under such circumstances that sudden loosening forces are directed against the packing so that the hem slips from the edge of the ear piece and the whole packing gets loose. If the user of the ear protector works out of doors in winter time and has mittens on his hands, it is very awkward to thrust the packing in its place again.
  • An object of this invention is to provide an ear protector having at reasonable expenses an essentially more secure fastening method for the packing than prior art means.
  • the main characteristic of the invention is that the depth of the slot on the circle of the ear piece is at least twice its breadth, in consequence of which the hem fitted in the slot gets into such a position that the inner circle of the hem has to stretch out as much as possible, when it is compelled to remove it from the slot.
  • the single accompanying drawing is a partial cutthat it comes down to the bottom of the slot 2 and so that a sudden force is necessary to extend the hem so much that it can be moved out from the slot 2.
  • the hem membrane is made of any soft material which will adhere to the walls of the slot 2 and which promotes its staying in place and preferably being of plastic material.
  • a thinning furrow 4a is made in the hem 4 so that it may be doubled or folded back upon itself.
  • a non-elastic thread 5 from under which the upper fold 4b of the twofold hem has to slip before the packing gets loose. The force necessary for this is already so great that the packing does not loosen even by drawing unless the thread breaks off or the hem 4 tears at the thinning furrow 4a.
  • An ear protector comprising a pair of cup-like ear members and means connecting said ear members for maintaining the ear protector on the ear position, said ear members having an inner cushionlike packing, a hem of plastic material for maintaining said packing in the members, said hem having a peripheral portion which is folded back upon itself to form a double width thereof and being substantially V-shaped in form, a cone-shaped slot along an outer circle of the ear pieces, said slot having a depth at least twice its breadth, the breadth of said slot being only slightly larger than the width of said V-shaped hem portion whereby when the hem is fitted into the slot the inner circle of the hem at the folded portion is stretched substantially to the maximum degree when it is compelled to come away from the slot.
  • the ear protector of cclaim 1 further including a non-elastic thread disposed around the V-shaped portion of the hem in the throat thereof.

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)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Closures For Containers (AREA)
  • Buffer Packaging (AREA)
US00290695A 1971-09-27 1972-09-20 Ear protector Expired - Lifetime US3805298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI712686A FI46023C (fi) 1971-09-27 1971-09-27 Kuulosuojaimen tiivisteen kiinnitystapa.

Publications (1)

Publication Number Publication Date
US3805298A true US3805298A (en) 1974-04-23

Family

ID=8507445

Family Applications (1)

Application Number Title Priority Date Filing Date
US00290695A Expired - Lifetime US3805298A (en) 1971-09-27 1972-09-20 Ear protector

Country Status (4)

Country Link
US (1) US3805298A (Direct)
DE (1) DE2239323A1 (Direct)
FI (1) FI46023C (Direct)
GB (1) GB1357076A (Direct)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830138A (en) * 1986-10-06 1989-05-16 Finnveden Holding Ab Pressure ring for ear cover
US5023955A (en) * 1989-04-13 1991-06-18 Gentex Corporation Impact-absorbing sound-attenuating earcup
US5500958A (en) * 1994-01-19 1996-03-26 Cabot Safety Corporation Seal plate attachment for earmuffs
US20180139525A1 (en) * 2015-07-07 2018-05-17 Shenzhen Royole Technologies Co., Ltd. Ear muff
USD883949S1 (en) * 2019-11-13 2020-05-12 Shenzhen Qianhai Patuoxun Network And Technology Co., Ltd Headphone

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US536388A (en) * 1895-03-26 Thirds to j
US2593892A (en) * 1950-04-05 1952-04-22 Elmore A Kindel Earpiece
US2883672A (en) * 1957-09-06 1959-04-28 Mine Safety Appliances Co Device for protecting ears from noise
US3122613A (en) * 1958-08-22 1964-02-25 Electric Storage Battery Co Ear protector
US3477067A (en) * 1966-05-05 1969-11-11 Gentex Corp Ear cup with spring supported resilient seal
US3583123A (en) * 1968-09-25 1971-06-08 Robertson Co H H Foamed-in-place double-skin building construction panel
US3593341A (en) * 1970-01-02 1971-07-20 Gentex Corp Sound-attenuating earcups

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US536388A (en) * 1895-03-26 Thirds to j
US2593892A (en) * 1950-04-05 1952-04-22 Elmore A Kindel Earpiece
US2883672A (en) * 1957-09-06 1959-04-28 Mine Safety Appliances Co Device for protecting ears from noise
US3122613A (en) * 1958-08-22 1964-02-25 Electric Storage Battery Co Ear protector
US3477067A (en) * 1966-05-05 1969-11-11 Gentex Corp Ear cup with spring supported resilient seal
US3583123A (en) * 1968-09-25 1971-06-08 Robertson Co H H Foamed-in-place double-skin building construction panel
US3593341A (en) * 1970-01-02 1971-07-20 Gentex Corp Sound-attenuating earcups

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830138A (en) * 1986-10-06 1989-05-16 Finnveden Holding Ab Pressure ring for ear cover
US5023955A (en) * 1989-04-13 1991-06-18 Gentex Corporation Impact-absorbing sound-attenuating earcup
US5500958A (en) * 1994-01-19 1996-03-26 Cabot Safety Corporation Seal plate attachment for earmuffs
US20180139525A1 (en) * 2015-07-07 2018-05-17 Shenzhen Royole Technologies Co., Ltd. Ear muff
USD883949S1 (en) * 2019-11-13 2020-05-12 Shenzhen Qianhai Patuoxun Network And Technology Co., Ltd Headphone

Also Published As

Publication number Publication date
DE2239323A1 (de) 1973-04-05
GB1357076A (en) 1974-06-19
FI46023B (Direct) 1972-08-31
FI46023C (fi) 1972-12-11

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