CA1143664A - Earplug and earplug set - Google Patents
Earplug and earplug setInfo
- Publication number
- CA1143664A CA1143664A CA000357753A CA357753A CA1143664A CA 1143664 A CA1143664 A CA 1143664A CA 000357753 A CA000357753 A CA 000357753A CA 357753 A CA357753 A CA 357753A CA 1143664 A CA1143664 A CA 1143664A
- Authority
- CA
- Canada
- Prior art keywords
- earplug
- stem
- cord
- front portion
- 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
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
- A61F11/12—External mounting means
-
- 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
Abstract
ABSTRACT OF THE DISCLOSURE
An earplug comprising a stem portion and a front portion mounted on the stem portion. The front ?ortion is conically shaped and disposed such that the inner surface of the front portion is spaced from the stem portion. At least one spacing member may be provided which is adapted to space the interior surface of the front portion from the stem portion.
The earplug may further comprises an axial bore therein adapted to receive a cord such that two of the earplugs may be connected by the cord so as to form a set.
An earplug comprising a stem portion and a front portion mounted on the stem portion. The front ?ortion is conically shaped and disposed such that the inner surface of the front portion is spaced from the stem portion. At least one spacing member may be provided which is adapted to space the interior surface of the front portion from the stem portion.
The earplug may further comprises an axial bore therein adapted to receive a cord such that two of the earplugs may be connected by the cord so as to form a set.
Description
t~
-- 1 ~
~ELATED MATERIALS
Applicant respectfully directs attention to Canadian Industrial Design Registration No. 47534 resulting from Canadian Design Application 07-0~3-80-5 filed concurrently herewith.
BAC1<GROU~D OF T~IE INVENTION
l. Field of the Inventi _ The invention relates to an earplug commonly used by insertion within the human ear to reduce the amount of noise heard.
-- 1 ~
~ELATED MATERIALS
Applicant respectfully directs attention to Canadian Industrial Design Registration No. 47534 resulting from Canadian Design Application 07-0~3-80-5 filed concurrently herewith.
BAC1<GROU~D OF T~IE INVENTION
l. Field of the Inventi _ The invention relates to an earplug commonly used by insertion within the human ear to reduce the amount of noise heard.
2. Description of Prior Art Earplugs are well-known and are used both in industry and by individuals. The purpose of earplugs is to reduce noise exposure while providing a maximum of comfort to the user.
United States Patent 3,301,243 to Glorig discloses an ear protector comprising a generally mushroom-shaped tip or head mounted on a stem. The stem itself is surrounded by a sleeve. A head set is used to bias two of the earplugs into the ears of the user.
United States Patent 3,61~,600 to Douglass allegedly represents an improvement over the Glorig earplug and attempts to provide greater comfort to the user. ~he stem portion of the plug is modified so as to increase its effective cross-sectional area thereby reducing the pressure on the ear in -terms o force per unit area. lhe stem is modified by .
, tapering i-t so as to provide a bulge as the plug is forced against the ear.
German Patent 45~,207 discloses an earplug having a mushroom-shaped tip as well as a stem having an orlfice extending -therethrough.
Swedish patent 399,178 discloses an earplug set connected by a cord. The front portion of the earplug is provided with an orifice in its outer surface.
United States Patent 968,008 to Waller discloses a "noise arrestor" comprising plugs or buttons which are maintained within the ear for purposes of reducing sound transmission. Figure 9 of the patent illustrates a plug having what would appear to be a hemispherical shape. A headband is used to maintain -the plug within the ear.
United S-tatas Patant 2,492,183 to Rosenblatt discloses an acoustic device made of a sof~ rubber having a mushroom-shaped head which is solid in cross-section.
Design Patent 245,202 to Asker again discloses an earplug having a mushroom-shaped head.
Finally, United States Patent 3,415,246 to ~ill (Figures 7-10) illustrates an ear fitting having a generally mushroom-shaped tip or head. The fitting is used for purposes of transmitting sound rather than arresting sound transmission. The fitting is provided with an orifice through which the sound may pass.
,;,, ;, ,,, ,, ,.- ~
~3~
SUMM~RY OF T~E I~VENTI~
It is an object of the in~ention to provide an earplug which is both effective yet comfortable.
It is a fur-ther objec-t of -the invention to provide an earplug which suitably fits a wide range of the population such that essentially only one size of the plug is nec0ssary to fit the vas-t majority oE users.
The objects are fulfilled by means of the earplug of the invention which comprises a stem portion and a front portion mounted on the stem portion. The front portion is conically-shaped and arranged such that the inner ~urface of the front portion is spaced from the stem portion. At least one spacing member may be provided which is adapted to space the interior surface oE the front portion from the stem portion.
The fron-t portion of the plug is appropriately shaped so as to comfortably fit within the ear of the user and is in effect an ear contact portion which flares outwardly from one end of the stem towards the other end thereof.
In a preferred embodiment of the invention the front or ear contact portion has a ~ubstantially continuous surface. By this it is meant that there are substantially no orifices or the like provided along the outer surface of the front portion.
The stem portion itself is preferably in the form of a cylindrical shaft having first and second ends.
The front por-tion is pre-Eerably mounted on the first and while-the second end may comprise a bore adapted to receive a cord -therein.
The purpose of the cord is to connect two of the earplugs so as to form a set. The cord itself may preferably be inserted direc-tly into the bore arranged within the stem.
~ plurality of spacing members are provided each of which is preferably in the form of a radially-extending flange arranged be-tween the stem and the 10inner surface of the front portion. The spacing members may be equidistantly arranged around the shaft.
The spacing members contribute to the ability of the earplug to be used i.n a wide range of ear canal sizes. The supports work in medium, large and extra large ear canals to preven-t collapse of the mushroom or conical shaped front por-tion thus providing an effec-tive seal and improved sound attenuation. By virtue of the fact that the fron-t portion is flared outwardly as a resul-t of the support members, a large 20contact area is provided within the ear canal thus providing ex-traordinary comfort to the user.
The cord, string, or other connec-ting means used to connect the two plugs to form a set preferably comprises a shea-th or the like around each of its end portions such that the sheathed cord fits easily but securely within the axial bore provided in the stem of the plug.
' ' ' ' According to a particularly ad~antageous embodiment of the invention the earplug is formed of unitary construction, i.e., one piece construction, and doeq not requira the assembly of additional elements onto the shea-th or plug itse:Lf.
BRIEF DESCRIPTION OF TEIE DR~WINGS
Figure l illustrates a rear perspective view of an earplug of the invention;
Figure 2 illustra-tas a fron~ perspective view of an earplug of the invention;
Figure 3 is a rear view of -the earplug of the invention;
Figure 4 is a rear perspective view simi.lar to Figure l illustrating the insertion of a cord into the earplug stem;
Figure 5 is a cross-sectional view of -the inventive earplug showing the cord with its sheath prior to insertion in~o the plug; and Figure 6 illustrates an earplug set.
DESCRIPTIO~ OF PREFERRED EMBODIME~TS
Figure l illustrates an earplug 10 having a shaft portion 12 and an ear contact or front portion 14. As illustrated, the front portion has a substantially conical or mushroom shape. The term conical as used throughout the application and claims is not to be taken in its strictest literal sense and includes both conical and paraboloid shapes as well as any other shapes which are similar to -those illustrated.
i ~ ~3~
~2300 - 6 -As may be fur-ther seen in Figure 1, a plurality of spacing members 16 may be provided which serve to space the Eront portion of the plug Erom the stem so as to provide a more comfortable and efEicient seal with the interior of the ear and improved sound attenuation when inserted therein.
Figure 2 further illustrates the preferably continuous outer surface of the front portion. By this it is mean-t that there are substantially no orifices providea along the outer surface of the front portion.
Figure 3 once again illustrates the plug and axially bore 18. The purpose of the axial bore is to receive a cord or other connec-ting member therein so that the plug may be connected to another plug to form a set. ~Figure 6).
As may be clearly seen from Figure 3, the spacer members l~ are preferably equidistantly spaced from one another and extend radially in the form of flanges between the stem and the interior surface of the front portion of the earplug.
Figure 4 illustrates the plug having a cord 20 inserted therein. The cord may be made of any conventional materials such as string, plastic cord, filament, and the like.
As may be seen from Figure 5, the cord 20 is provided with a plastic sheath 22 whereby -the plastic sheath may be easily yet securely inserted within the axial bore 18 provided in shaft 12 of the earplug.
The plug may be made of any suitable material but is preferably made out of 4S durometer silicon rubber so as to provide an efficient and comfortable fit within the user's ear.
While one advan-tage of the invention is that a single size earplug will fit -the majority of the population, it is quite obviously possible to provide other sizes for people having extra small or extra large ear canals.
Although the invention has been described with respect to specific means and materials, it is to be understood that the invention is not limited to-those means and materials specifically disclosed but extends to cover all embodiments covered by the claims.
United States Patent 3,301,243 to Glorig discloses an ear protector comprising a generally mushroom-shaped tip or head mounted on a stem. The stem itself is surrounded by a sleeve. A head set is used to bias two of the earplugs into the ears of the user.
United States Patent 3,61~,600 to Douglass allegedly represents an improvement over the Glorig earplug and attempts to provide greater comfort to the user. ~he stem portion of the plug is modified so as to increase its effective cross-sectional area thereby reducing the pressure on the ear in -terms o force per unit area. lhe stem is modified by .
, tapering i-t so as to provide a bulge as the plug is forced against the ear.
German Patent 45~,207 discloses an earplug having a mushroom-shaped tip as well as a stem having an orlfice extending -therethrough.
Swedish patent 399,178 discloses an earplug set connected by a cord. The front portion of the earplug is provided with an orifice in its outer surface.
United States Patent 968,008 to Waller discloses a "noise arrestor" comprising plugs or buttons which are maintained within the ear for purposes of reducing sound transmission. Figure 9 of the patent illustrates a plug having what would appear to be a hemispherical shape. A headband is used to maintain -the plug within the ear.
United S-tatas Patant 2,492,183 to Rosenblatt discloses an acoustic device made of a sof~ rubber having a mushroom-shaped head which is solid in cross-section.
Design Patent 245,202 to Asker again discloses an earplug having a mushroom-shaped head.
Finally, United States Patent 3,415,246 to ~ill (Figures 7-10) illustrates an ear fitting having a generally mushroom-shaped tip or head. The fitting is used for purposes of transmitting sound rather than arresting sound transmission. The fitting is provided with an orifice through which the sound may pass.
,;,, ;, ,,, ,, ,.- ~
~3~
SUMM~RY OF T~E I~VENTI~
It is an object of the in~ention to provide an earplug which is both effective yet comfortable.
It is a fur-ther objec-t of -the invention to provide an earplug which suitably fits a wide range of the population such that essentially only one size of the plug is nec0ssary to fit the vas-t majority oE users.
The objects are fulfilled by means of the earplug of the invention which comprises a stem portion and a front portion mounted on the stem portion. The front portion is conically-shaped and arranged such that the inner ~urface of the front portion is spaced from the stem portion. At least one spacing member may be provided which is adapted to space the interior surface oE the front portion from the stem portion.
The fron-t portion of the plug is appropriately shaped so as to comfortably fit within the ear of the user and is in effect an ear contact portion which flares outwardly from one end of the stem towards the other end thereof.
In a preferred embodiment of the invention the front or ear contact portion has a ~ubstantially continuous surface. By this it is meant that there are substantially no orifices or the like provided along the outer surface of the front portion.
The stem portion itself is preferably in the form of a cylindrical shaft having first and second ends.
The front por-tion is pre-Eerably mounted on the first and while-the second end may comprise a bore adapted to receive a cord -therein.
The purpose of the cord is to connect two of the earplugs so as to form a set. The cord itself may preferably be inserted direc-tly into the bore arranged within the stem.
~ plurality of spacing members are provided each of which is preferably in the form of a radially-extending flange arranged be-tween the stem and the 10inner surface of the front portion. The spacing members may be equidistantly arranged around the shaft.
The spacing members contribute to the ability of the earplug to be used i.n a wide range of ear canal sizes. The supports work in medium, large and extra large ear canals to preven-t collapse of the mushroom or conical shaped front por-tion thus providing an effec-tive seal and improved sound attenuation. By virtue of the fact that the fron-t portion is flared outwardly as a resul-t of the support members, a large 20contact area is provided within the ear canal thus providing ex-traordinary comfort to the user.
The cord, string, or other connec-ting means used to connect the two plugs to form a set preferably comprises a shea-th or the like around each of its end portions such that the sheathed cord fits easily but securely within the axial bore provided in the stem of the plug.
' ' ' ' According to a particularly ad~antageous embodiment of the invention the earplug is formed of unitary construction, i.e., one piece construction, and doeq not requira the assembly of additional elements onto the shea-th or plug itse:Lf.
BRIEF DESCRIPTION OF TEIE DR~WINGS
Figure l illustrates a rear perspective view of an earplug of the invention;
Figure 2 illustra-tas a fron~ perspective view of an earplug of the invention;
Figure 3 is a rear view of -the earplug of the invention;
Figure 4 is a rear perspective view simi.lar to Figure l illustrating the insertion of a cord into the earplug stem;
Figure 5 is a cross-sectional view of -the inventive earplug showing the cord with its sheath prior to insertion in~o the plug; and Figure 6 illustrates an earplug set.
DESCRIPTIO~ OF PREFERRED EMBODIME~TS
Figure l illustrates an earplug 10 having a shaft portion 12 and an ear contact or front portion 14. As illustrated, the front portion has a substantially conical or mushroom shape. The term conical as used throughout the application and claims is not to be taken in its strictest literal sense and includes both conical and paraboloid shapes as well as any other shapes which are similar to -those illustrated.
i ~ ~3~
~2300 - 6 -As may be fur-ther seen in Figure 1, a plurality of spacing members 16 may be provided which serve to space the Eront portion of the plug Erom the stem so as to provide a more comfortable and efEicient seal with the interior of the ear and improved sound attenuation when inserted therein.
Figure 2 further illustrates the preferably continuous outer surface of the front portion. By this it is mean-t that there are substantially no orifices providea along the outer surface of the front portion.
Figure 3 once again illustrates the plug and axially bore 18. The purpose of the axial bore is to receive a cord or other connec-ting member therein so that the plug may be connected to another plug to form a set. ~Figure 6).
As may be clearly seen from Figure 3, the spacer members l~ are preferably equidistantly spaced from one another and extend radially in the form of flanges between the stem and the interior surface of the front portion of the earplug.
Figure 4 illustrates the plug having a cord 20 inserted therein. The cord may be made of any conventional materials such as string, plastic cord, filament, and the like.
As may be seen from Figure 5, the cord 20 is provided with a plastic sheath 22 whereby -the plastic sheath may be easily yet securely inserted within the axial bore 18 provided in shaft 12 of the earplug.
The plug may be made of any suitable material but is preferably made out of 4S durometer silicon rubber so as to provide an efficient and comfortable fit within the user's ear.
While one advan-tage of the invention is that a single size earplug will fit -the majority of the population, it is quite obviously possible to provide other sizes for people having extra small or extra large ear canals.
Although the invention has been described with respect to specific means and materials, it is to be understood that the invention is not limited to-those means and materials specifically disclosed but extends to cover all embodiments covered by the claims.
Claims (20)
1. An earplug comprising:
a) a stem portion b) a front portion, mounted on said stem portion, said front portion being conically shaped and disposed such that the inner surface of said front portion is spaced from said stem portion; and c) at least one spacing member adapted to space the interior surface of the front portion from said stem portion.
a) a stem portion b) a front portion, mounted on said stem portion, said front portion being conically shaped and disposed such that the inner surface of said front portion is spaced from said stem portion; and c) at least one spacing member adapted to space the interior surface of the front portion from said stem portion.
2. The earplug as defined by claim 1 wherein said front portion has a continuous outer surface.
3. The earplug as defined by claim 2 wherein said stem portion is in the form of a shaft having a first and second end, said front portion being mounted on said first end and said second end comprising a bore adapted to receive a cord therein.
4. The earplug as defined by claim 2 comprising a plurality of said spacing members.
5. The earplug as defined by claim 4 wherein said spacing members comprise radially extending flanges.
6. The earplug as defined by claim 5 wherein said spacing members are spaced equidistantly around said shaft.
7. An earplug set comprising two of said earplugs of claim 1 connected by a cord.
8. The earplug set as defined by claim 7 wherein each of said stem portions of said earplugs comprises a bore adapted to receive on end of said cord.
9. The earplug set as defined by claim 9 wherein said cord comprises an annular sheath surrounding each end thereof.
10. The earplug set as defined by claim 9 wherein the inner surface of said conical portion is spaced from said stem portion by at least one radially extending flange.
11. An earplug comprising an ear contact portion and a stem, said ear contact portion mounted on one end of said stem and flaring outwardly from said one end of said stem towards the other end of said stem, and at least one spacing member adapted to space said ear contact portion from said stem.
12. The earplug as defined by claim 11 comprising a plurality of said spacing members arranged between said stem and the interior surface of said ear contact portion.
13. The earplug as defined by claim 12 wherein said ear contact surface is substantially continuous.
14. The earplug as defined by claim 13 wherein said stem comprises an axial bore adapted to receive a cord therein.
15. A unitary construction earplug comprising:
a) a stem portion;
b) a front portion mounted on said stem portion, said front portion being conically shaped and disposed such that the inner surface of said front portion is spaced from said stem portion; and c) at least one spacing member adapted to space the interior surface of said front portion from said stem.
a) a stem portion;
b) a front portion mounted on said stem portion, said front portion being conically shaped and disposed such that the inner surface of said front portion is spaced from said stem portion; and c) at least one spacing member adapted to space the interior surface of said front portion from said stem.
16. The earplug as defined by claim 15 wherein said stem portion comprises an axial bore adapted to receive one end of a cord therein.
17. The earplug as defined by claim 16 in combination with said cord.
18. An earplug set comprising two of the earplugs defined by claim 17 attached to one another by means of said cord.
19. The earplug set as defined by claim 18 wherein each of said earplugs comprises a plurality of said spacing members.
20. The earplug set as defined by claim 17 wherein said at least one spacing member comprises a radially extending flange.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/064,861 US4314553A (en) | 1979-08-08 | 1979-08-08 | Earplug and earplug set |
| US64,861 | 1979-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1143664A true CA1143664A (en) | 1983-03-29 |
Family
ID=22058690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000357753A Expired CA1143664A (en) | 1979-08-08 | 1980-08-07 | Earplug and earplug set |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4314553A (en) |
| CA (1) | CA1143664A (en) |
Families Citing this family (65)
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|---|---|---|---|---|
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| JP7273798B2 (en) | 2017-09-01 | 2023-05-15 | スリーエム イノベイティブ プロパティズ カンパニー | Push-fit earplug with tip cavity |
| EP3676858B1 (en) | 2017-09-01 | 2023-08-23 | 3M Innovative Properties Company | Cold-drawn polyolefin copolymer cord for earplug |
| RU2746154C1 (en) * | 2017-09-01 | 2021-04-07 | 3М Инновейтив Пропертиз Компани | Hearing protection assembly with ear plugs and its manufacturing method |
| USD872061S1 (en) * | 2018-05-21 | 2020-01-07 | Shenzhen Tuopu Global Technology Co., Ltd | Earphone |
| GB2588316B (en) * | 2018-05-23 | 2022-12-07 | Chronotech Pty Ltd | Earplugs |
| USD911134S1 (en) * | 2019-04-30 | 2021-02-23 | Mark Andrew Carlson | Object retrieval device |
| USD1009978S1 (en) * | 2019-05-31 | 2024-01-02 | Dennis Cochran | Attachable eyeglass earplugs |
| USD966494S1 (en) | 2019-08-21 | 2022-10-11 | Chronotech (Pty) Ltd | Earplug set |
| USD906297S1 (en) | 2019-09-13 | 2020-12-29 | Apple Inc. | Pair of earphones |
| USD909347S1 (en) * | 2019-09-20 | 2021-02-02 | Apple Inc. | Earphone |
| USD966230S1 (en) * | 2022-01-14 | 2022-10-11 | Ting Ye | Wireless earphone |
| USD975676S1 (en) * | 2022-03-08 | 2023-01-17 | Baolian Guo | Wireless earphone |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA692013A (en) * | 1964-08-04 | Davidson Emil | Stopper for a decanter | |
| DE456207C (en) * | 1928-08-04 | Leo Deutsch | Locking device for the ear canal with a headband | |
| US968008A (en) * | 1909-03-23 | 1910-08-23 | Charles W Waller | Noise-arrester. |
| US2492183A (en) * | 1946-01-23 | 1949-12-27 | Maurice C Rosenblatt | Acoustic device |
| FR74535E (en) * | 1958-11-20 | 1960-12-19 | Ear obturator | |
| US3259128A (en) * | 1964-06-11 | 1966-07-05 | Howard S Leight | Ear protector from noise and dirt |
| US3301253A (en) * | 1965-01-21 | 1967-01-31 | Glorig Aram | Ear protector |
| US3415246A (en) * | 1967-09-25 | 1968-12-10 | Sigma Sales Corp | Ear fittings |
| US3618600A (en) * | 1969-04-01 | 1971-11-09 | Harry E Douglass | Ear stopple |
| US3871372A (en) * | 1974-02-19 | 1975-03-18 | Jim Bivins | Combination ear plug and ear plug retainer |
| US3935401A (en) * | 1974-08-29 | 1976-01-27 | Shore Sidney X | Earpiece for acoustic headset |
| US4167185A (en) * | 1977-04-18 | 1979-09-11 | A-T-O Inc. | Face mask seal |
-
1979
- 1979-08-08 US US06/064,861 patent/US4314553A/en not_active Expired - Lifetime
-
1980
- 1980-08-07 CA CA000357753A patent/CA1143664A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4314553A (en) | 1982-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |