US3239093A - Hearing aid casing of the miniature type - Google Patents
Hearing aid casing of the miniature type Download PDFInfo
- Publication number
- US3239093A US3239093A US146570A US14657061A US3239093A US 3239093 A US3239093 A US 3239093A US 146570 A US146570 A US 146570A US 14657061 A US14657061 A US 14657061A US 3239093 A US3239093 A US 3239093A
- Authority
- US
- United States
- Prior art keywords
- casing
- assembled
- parts
- miniature
- hearing aid
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
- H04R25/652—Ear tips; Ear moulds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
- H04R25/658—Manufacture of housing parts
Definitions
- the present invention relates to hearing aid apparatuses of the miniature type comprising a plurality of electronic miniature components enclosed in a plastic casing.
- miniature hearing aid apparatus as used here and in the following shall be construed to include unitary self contained hearing aid apparatuses of small dimensions as well as hearing aid apparatuses included in other items, such as for example in hearing aid spectacles.
- Still a further purpose of the invention is to provide a hearing aid apparatus of the miniature type in which the casing can be assembled from two parts without the use of tools.
- Still a further purpose of the invention is to provide a miniature hearing aid apparatus in which the casing is assembled by locking engagement between locking members of each of the two parts of the casing which will hold the casing safely assembled, and still enable the casing to be disassembled for the purpose of service and repair without the risk of damaging the casing.
- FIGURE 1 is a perspective view of a casing of a miniature hearing aid apparatus according to the invention
- FIGURE 2 is a perspective view in enlarged scale of one of the two parts of the casing
- FIGURE 3 is a perspective view in similarity with FIGURE 2 showing the other part of the casing
- FIGURE 4 is a perspective view of the part of the casing shown in FIGURE 2, illustrating the arrangement of the electronic components within the casing,
- FIGURE 5 is a section through the casing showing a cross section of the lock means on an enlarged scale
- FIGURE 6 is a cross section through the lock means showing a modified embodiment thereof.
- the hearing aid apparatus as illustrated in FIGURES 15 is of the miniature type comprising a plurality of electronic miniature components which are enclosed in a casing 10.
- the casing 10 is assembled from two half parts 12 and 14 of plastic material which are substantially of similar size and configuration and which are assembled in edge to edge relationship along a line which in FIGURE 1 is referred to as 16.
- the assembly is effectuated by means of'lock projec tions 18 at the edge of the half part 12 being integral with the wall structure of the casing in locking engagement "with lock recesses 2i) at the edge of the other casing part "ice 14.
- a plastic material is selected for the manufacture of the two half portions of the casing which is characterized by being relatively stiff but elastically deformable with its elasticity so adapted to the dimensions of the extension of the projecting lock means 18 and the depth of the lock recesses 20 in a plane through the assembly line 16 so as to enable the two parts of the edge zones at least of the wall structure defining the casing half parts to be elastically deformed to provide for the locking engagement as well as disengagement.
- the invention results in a plurality of advantages with respect to the production of this specific type of hearing aid apparatus as well as advantages for the user.
- the invention provides, however, for lock means integral with the casing wall structure.
- the lock means is provided in the mould for moulding the two half parts of the casing. All time-consuming assembly operations are avoided and the two half parts of the casing can be clicked together by a simple operation which is a matter of one or two seconds. cuits or components inside the casing are found after the assembly it is also a simple operation which is a matter of one or two seconds to separate the parts of the casing without the risk of damaging the parts whereby If defects in the electronic cirin production reject of casings is avoided completely. The same counts for servicing which can be carried out much quicker and easier than previously which of course is of great advantage for the user of the apparatus.
- the apparatus shown in FIGURES 1-4 is a miniature of the apparatus adapted to be carried behind the ear, and the casing is an elongated peanut-like casing having a concave side and a convex side.
- the length of the casing may be about 1 /2 inch and the width of about /2 inch or slightly more.
- the casing half portion 12 is provided with bottom ribs 22 and 24 which operate as stiffening ribs and define a compartment for positioning a sound reproducer 26 inside the casing.
- the sound reproducer has an outlet which through a plastic pipe is connected to a nipple 28 which is secured in a hole in the narrow end of the casing and which is designed for connection with an ear piece (not shown).
- Adjacent the other end of the casing inwardly extending pairs of ribs 40 and 42 respectively are provided on either side of an aperture 38 which communicates with a compartment adapted to receive a dry cell or the like for energizing the electronic apparatus.
- the pair of ribs 40 defines adjacent the right hand end of the casing a compartment which is adapted to receive the microphone which has a fin or rib engaging between the pair of ribs 40 so as to be positioned by engagement therewith.
- An air intake 44 is provided at the right hand end of the casing to enable the sound waves to reach the microphone.
- the other pair of ribs 42 is designed to position a switch 46 by engagement of a member associated therewith.
- a manual control member 48 for the switch extends through. a slot 50 in the casing wall.
- a pair of ribs 52 defines together with the rib 36 a compartment in the middle portion of the casing in which the electronic amplification part is positioned.
- This part includes a complete amplifier constructed by means of miniature components including transistors, resistors, condensers, etc.
- a removable cover (not shown) is provided to close the aperture 38 to the dry cell compartment.
- ribs and partitions 22a, 34a and 36a are provided corresponding to the ribs and partitions 22, 34 and 36 in the casing portion 12.
- two partitions 40a and 42:: are provided on each side of the battery compartment.
- the lock projections on the casing portion 12 are in the form of ribs integral with the wall structure which defines the casing. Said lock ribs extend along a substantial part of the assembly edge of the casing portion 12.
- One rib section 18a extends from adjacent the narrow end of the casing to the aperture 30. Between this aperture and the aperture 38 a second rib portion 18b extends.
- a third rib portion 180 extends from the other side of the aperture 38 to the rib or partition 52 which limits the right and side of the amplifier compartment. On the other side of this compartment a further rib portion 18d extends to adjacent the narrow end of the casing.
- the casing portion 14 has outwardly facing lock notch sections 2911-2042, the length of which corresponds to the length of the lock rib sections.
- the projecting lock means or lock ribs are provided with inwardly facing inclined surfaces 18' and the lock recesses or grooves are provide-d with corresponding outwardly facing inclined surfaces 20, see FIGURE 5.
- the inclined surfaces 18' and 20' form an acute angle with a line perpendicular to the plane through the assembly line of the two casing halves. This angle is the same on the projection or rib where it is in engagement with the recess 0r groove. In order to secure easy clicking of the two casing portions together without the risk of damaging the edges of the lock projections the angle must not be too large and is preferably below 20.
- the angle of the inclination is different at edge portions which are substantially linear or only slightly curved and at portions where the wall is bent sharply or having a small radius of curvature.
- the angle of inclination may adjacent the middle of the casing be between 7 and 10 and at the corners where the radius of curvature is smaller the angle may be between 3 and 5 which I have found results in an easy locking engagement with a very firm grip.
- the height of the lock ribs 18 perpendicular to a plane through the assembly line may be between and inch.
- the top edge of the rib will project about .006 inch inwardly relatively to the foot of the rib where it joins the assembly edge.
- top side or edge of the locking recess or groove will point about .006 inch outwardly relatively to the bottom of the recess. This means that the necessary deformation to provide for the locking engagement is of the magnitude .0112 inch which surprisingly I have found is sufficient to secure a very safe locking engagement.
- the dimension of the lock rib perpendicular to the plane of assembly is slightly higher than the dimension of the lock groove so that when the parts are assembled a narrow slot 21 is left between the assembled edges of the casing parts in the interior of the casing.
- the difference in height, i.e., the dimension of the slot 21 may be of a magnitude between .005.006 inch.
- plastic material selected for the manufacture of the casing parts must be characterized by a substantial stiffness and adequate elasticity.
- a suitable plastic material having these physical properties a styrene-acrylonitrile copolymer is mentioned as an example of commercially available plastic material which is suitable for the purpose, but it will be understood that any other suitable plastic materials having substantially similar physical properties can be used.
- the wall thickness must be selected in view of the plastic material used so as to enable the locking engagement by clicking the parts together without the danger of damaging the lock means. I found it convenient to select the wall thickness so that the pressure necessary to obtain the locking engagement is smaller when the casing is empty, i.e., without components positioned therein and in addition to dimension the components and/or their positioning members engaging with the inwardly extending ribs in such a manner that the elastic deformation of that one of the casing parts in which the components are mounted is limited by the stiffness of the components at one or more points along the length of the casing.
- volume control member and the switch be selected of such dimensions that the elastic deformation of the easing portion 12 in transverse direction where these two components are located is limited to the necessary deformation of about .006 inch or even less. Thereby when the two casing parts are assembled these components will contribute to the safe locking engagement.
- the dry cell compartment which is accessible through the aperture 38 no other components than the dry cell are located so that when the dry cell is removed the interior walls are accessible with exposed surfaces. Therefore, for the purpose of disassembling the casing structure the dry cell compartment can conveniently be used, for example by inserting a plier therein and spreading it out to engage it with the exposed interior walls whereby a dissembling of the casing can be etfectuated without the risk of damaging the casing.
- FIGURE 6 illustrates lock means in the form of lock projections 54 and 56 of the same configuration located adjacent the exterior and the interior side respectively of the two casing parts.
- Such lock projections may be in the form of elongated ribs extending along a part of the length of the edges, or such lock projections may be distributed at suitable intervals along the edges. Also other modifications will be possible within the scope of the invention.
- the invention provides a plastic casing for a miniature hearing aid apparatus comprising two hollow shells of a relatively stiff elastic plastic material.
- the open sides of both shells are surrounded by a peripheral edge which may have one or more recesses such as exemplified by the recesses 30 and 38. When the shells are assembled these recesses define apertures communicating with the interior of the casing.
- the assembly means is in the form of ribs integral with the shells extending along portions of the edges of said
- the ribs or rib portions of one shell form a smooth surface with the exterior surface of the respective shell and are designed as locking ribs on the inwardly facing side.
- the rib portions on the other shell the outwardly facing surfaces of which are designed as locking ribs for engagement with the inwardly facing surfaces of the ribs on the first part are also forming a smooth surface with the interior of the second shell in order to get the shell out of. the mould.
- a miniature hearing aid apparatus in which miniature elements are arranged within a plastic casing, said casing comprising:
- edge portions being partially at least approximately linear and partially relatively strongly curved to form relatively sharper bends, and mutually interengageable locking means at said edge portions for holding the two parts together in the assembled condition of the casing and essentially consisting of only complementary under-cut means operable to elastically engage one with the other with said two shell parts assembled into said casing,
- said complementary under-cut means being provided with cooperating inclined surfaces which abut against each other with said casing assembled
- said inclined surfaces forming an acute angle, which is less than 20 and larger than 3, with respect to a line perpendicular to the separating plane between said shell parts,
- said angle being smaller within the regions of said bends than in the approximately linear regions of said edge portions.
- a miniature hearing aid apparatus in which miniature elements are arranged within a plastic casing, said casing comprising:
- edge portions being partially at least approximately linear and partially relatively strongly curved to form relatively sharper bends, and mutually interengageable locking means at said edge portions for holding the two parts together in the assembled condition of the casing and essentially consisting of only complementary under-cut means operable to elastically engage one with the other with said two shell parts assembled into said casing,
- said complementary under-cut means being provided with cooperating inclined surfaces which abut against each other with said casing assembled
- said inclined surfaces forming an acute angle, which is less than 20 and larger than 3, with respect to a line perpendicular to the separating plane between said shell parts,
- said angle being smaller within the regions of said bends than in the approximately linear regions of said edge portions
- said angle being of the order 7-10 within said approximately linear regions and being of the order of 35 within the regions of said bends.
- a miniature hearing aid apparatus in which miniature elements are arranged within a plastic casing, said casing comprising:
- edge portions facing each other and adapted to be assembled into said casing, said edge portions being partially at least approximately linear and partially relatively strongly curved to form relatively sharper bends,
- said inclined surfaces forming an acute angle, which is less than 20 and larger than 3", with respect to a line perpendicular to the separating plane between said shell parts,
- said angle being smaller within the regions of said bends than in the approximately linear regions of said edge portions
- said angle being of the order 7-l0 within said approximately linear regions and being of the order of 35 within the regions of said bends
- the under-cut means provided with said outwardly inclined surfaces being somewhat higher than the depth of the complementary under-cut means provided with said inwardly inclined surfaces to provide a gap between the two parts.
- a miniature hearing aid apparatus in which miniature elements are arranged within a plastic casing, said casing comprising:
- edge portions being partially at least approximately linear and partially relatively strongly curved to form relatively sharper bends
- said complementary under-cut means being provided with substantially rectilinear cooperating inclined surfaces which abut against each other with said casing assembled, the inclined surfaces at the outer under-cut means sloping inwardly of said casing in the direction of the free extremity thereof, and the inclined surfaces at the inner under-cut means sloping outwardly of said casing in the direction of the free extremity thereof,
- said inclined surfaces forming an acute angle, which is less than 20 and larger than 3, with respect to a line perpendicular to the separating plane between said shell parts,
- said angle being smaller within the regions of said bends than in the approximately linear regions of said edge portions
- said angle being of the order 710 within said approximately linear regions and being of the order of 35 within the regions of said bends
- the under-cut means provided with said outwardly inclined surfaces being somewhat higher than the depth of the complementary under-cut means provided with said inwardly inclined surfaces to provide a gap between the two parts
- said shell parts being made of styrene-acrylonitrile copolymer.
- a miniature hearing aid apparatus in which miniature elements are arranged within a plastic casing, said casing comprising:
- said complementary under-cut means being provided with cooperating inclined surfaces which abut against each other with said casing assembled
- said inclined surfaces forming an acute angle, which is less than 20 and larger than 3", with respect to a line perpendicular to the separating plane between said shell parts,
- said angle being of the order of 7-10 within said approximately linear regions and being of the order of 3-5 within the regions of said bends.
- a'miniature hearing aid apparatus in which miniature elements are arranged within a plastic casing, said casing comprising:
- said complementary under-cut means being provided with substantially rectilinear cooperating inclined sunrfaces which abut against each other with said casing assembled, the inclined surfaces at the outer under-cut means sloping inwardly of said casing in the direction of the free extremity thereof, and the inclined surfaces at the inner under-cut means sloping outwardly of said casing in the direction of the free extremity thereof,
- said inclined surfaces forming an acute angle, which is less than 20 and larger than 3, with respect to a line perpendicular to the separating plane between said shell parts,
- said angle being of the order 710 within said approximately linear regions and being of the order of 3-5 within the regions of said heads.
- the under-cut means provided with said outwardly inclined surfaces being somewhat higher than the depth of the complementary under-cut means provided with said inwardly inclined surfaces to provide a gap between the two parts.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Toys (AREA)
- Casings For Electric Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36411/60A GB992570A (en) | 1960-10-24 | 1960-10-24 | Improvements in or relating to hearing aids |
Publications (1)
Publication Number | Publication Date |
---|---|
US3239093A true US3239093A (en) | 1966-03-08 |
Family
ID=10387895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US146570A Expired - Lifetime US3239093A (en) | 1960-10-24 | 1961-10-20 | Hearing aid casing of the miniature type |
Country Status (4)
Country | Link |
---|---|
US (1) | US3239093A (zh) |
CH (1) | CH394303A (zh) |
GB (1) | GB992570A (zh) |
NL (1) | NL270384A (zh) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3407958A (en) * | 1965-07-14 | 1968-10-29 | Philips Corp | Joints between a cap and a housing of a bipartite envelope |
US3517802A (en) * | 1968-07-16 | 1970-06-30 | Patrick Petrie | Watch band calendar and dispenser |
US4445008A (en) * | 1981-10-19 | 1984-04-24 | Bell Telephone Laboratories, Incorporated | Snap-together housing |
US4870688A (en) * | 1986-05-27 | 1989-09-26 | Barry Voroba | Mass production auditory canal hearing aid |
US4905830A (en) * | 1989-08-03 | 1990-03-06 | Lin Yen Hui | Packing case also usable for clothes-hanging and drawing purposes |
US4965831A (en) * | 1987-09-29 | 1990-10-23 | Siemens Aktiengesellschaft | Hearing aid housing with retaining frame |
US5747733A (en) * | 1997-03-03 | 1998-05-05 | Woods; Randall T. | Wiring duct entrance fitting enclosure |
US6324291B1 (en) * | 1998-06-10 | 2001-11-27 | Siemens Audiologische Technik Gmbh | Head-worn hearing aid with suppression of oscillations affecting the amplifier and transmission stage |
US6522764B1 (en) * | 1998-10-07 | 2003-02-18 | Oticon A/S | Hearing aid |
US6735319B1 (en) * | 1999-06-16 | 2004-05-11 | Phonak Ag | Behind-the-ear hearing aid |
US20050117763A1 (en) * | 2002-07-10 | 2005-06-02 | Svendsen Klaus L. | Hearing aid or similar audio device and method for producing a hearing aid |
WO2005055655A1 (en) * | 2003-12-05 | 2005-06-16 | Oticon A/S | Communication device with microphone |
US20050190939A1 (en) * | 1997-07-18 | 2005-09-01 | Gn Resound North America Corporation | Method of manufacturing hearing aid ear tube |
US20080212817A1 (en) * | 2007-03-01 | 2008-09-04 | Dietmar Lommel | Hearing device with basic structure |
US20170086001A1 (en) * | 2015-09-21 | 2017-03-23 | Oticon A/S | Hearing device |
US9838770B2 (en) | 2011-03-15 | 2017-12-05 | Apple Inc. | Seamless earbud structures and methods for making the same |
USD959412S1 (en) * | 2020-12-04 | 2022-08-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Earphone |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE8802158L (sv) * | 1988-06-09 | 1989-12-10 | Hans Rune Rosander | Mikrofon |
Citations (9)
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US2597087A (en) * | 1951-04-09 | 1952-05-20 | Us Rubber Co | Synthetic resin coated paper |
US2674547A (en) * | 1951-03-10 | 1954-04-06 | Us Rubber Co | Coated article and process of making same |
US2720332A (en) * | 1952-04-04 | 1955-10-11 | Danielson Mfg Company | Plastic hollow housing construction |
US2959645A (en) * | 1956-05-22 | 1960-11-08 | Ladd John | Hearing aid |
US2998896A (en) * | 1958-01-13 | 1961-09-05 | Peoria Plastic Company | Container |
DE1114848B (de) * | 1960-08-27 | 1961-10-12 | Micro Technic Hueber & Co | Gehaeuse fuer hinter dem Ohr zu tragende Schwerhoerigen-Hoergeraete |
US3031537A (en) * | 1960-06-02 | 1962-04-24 | Maico Electronics Inc | Acoustical device |
US3035127A (en) * | 1955-04-15 | 1962-05-15 | Charles W Strzalkowski | Hearing aids |
US3095995A (en) * | 1961-02-06 | 1963-07-02 | Clark Mfg Co J L | Container with plug type closure |
-
0
- NL NL270384D patent/NL270384A/xx unknown
-
1960
- 1960-10-24 GB GB36411/60A patent/GB992570A/en not_active Expired
-
1961
- 1961-10-18 CH CH1203561A patent/CH394303A/de unknown
- 1961-10-20 US US146570A patent/US3239093A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2674547A (en) * | 1951-03-10 | 1954-04-06 | Us Rubber Co | Coated article and process of making same |
US2597087A (en) * | 1951-04-09 | 1952-05-20 | Us Rubber Co | Synthetic resin coated paper |
US2720332A (en) * | 1952-04-04 | 1955-10-11 | Danielson Mfg Company | Plastic hollow housing construction |
US3035127A (en) * | 1955-04-15 | 1962-05-15 | Charles W Strzalkowski | Hearing aids |
US2959645A (en) * | 1956-05-22 | 1960-11-08 | Ladd John | Hearing aid |
US2998896A (en) * | 1958-01-13 | 1961-09-05 | Peoria Plastic Company | Container |
US3031537A (en) * | 1960-06-02 | 1962-04-24 | Maico Electronics Inc | Acoustical device |
DE1114848B (de) * | 1960-08-27 | 1961-10-12 | Micro Technic Hueber & Co | Gehaeuse fuer hinter dem Ohr zu tragende Schwerhoerigen-Hoergeraete |
US3095995A (en) * | 1961-02-06 | 1963-07-02 | Clark Mfg Co J L | Container with plug type closure |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3407958A (en) * | 1965-07-14 | 1968-10-29 | Philips Corp | Joints between a cap and a housing of a bipartite envelope |
US3517802A (en) * | 1968-07-16 | 1970-06-30 | Patrick Petrie | Watch band calendar and dispenser |
US4445008A (en) * | 1981-10-19 | 1984-04-24 | Bell Telephone Laboratories, Incorporated | Snap-together housing |
JP2655604B2 (ja) | 1986-05-27 | 1997-09-24 | ボーシュ・アンド・ロム・ヒアリング・システムズ・ディヴィジョン・インコーポレーテッド | 大量生産耳道補聴器 |
US4870688A (en) * | 1986-05-27 | 1989-09-26 | Barry Voroba | Mass production auditory canal hearing aid |
US4965831A (en) * | 1987-09-29 | 1990-10-23 | Siemens Aktiengesellschaft | Hearing aid housing with retaining frame |
US4905830A (en) * | 1989-08-03 | 1990-03-06 | Lin Yen Hui | Packing case also usable for clothes-hanging and drawing purposes |
US5747733A (en) * | 1997-03-03 | 1998-05-05 | Woods; Randall T. | Wiring duct entrance fitting enclosure |
US20050190939A1 (en) * | 1997-07-18 | 2005-09-01 | Gn Resound North America Corporation | Method of manufacturing hearing aid ear tube |
US7027608B2 (en) * | 1997-07-18 | 2006-04-11 | Gn Resound North America | Behind the ear hearing aid system |
US6324291B1 (en) * | 1998-06-10 | 2001-11-27 | Siemens Audiologische Technik Gmbh | Head-worn hearing aid with suppression of oscillations affecting the amplifier and transmission stage |
US6522764B1 (en) * | 1998-10-07 | 2003-02-18 | Oticon A/S | Hearing aid |
US6735319B1 (en) * | 1999-06-16 | 2004-05-11 | Phonak Ag | Behind-the-ear hearing aid |
US7260233B2 (en) * | 2002-07-10 | 2007-08-21 | Oticon A/S | Hearing aid or similar audio device and method for producing a hearing aid |
US20050117763A1 (en) * | 2002-07-10 | 2005-06-02 | Svendsen Klaus L. | Hearing aid or similar audio device and method for producing a hearing aid |
WO2005055655A1 (en) * | 2003-12-05 | 2005-06-16 | Oticon A/S | Communication device with microphone |
US20070030991A1 (en) * | 2003-12-05 | 2007-02-08 | Oticon A/S | Communication device with microphone |
US7561710B2 (en) * | 2003-12-05 | 2009-07-14 | Oticon A/S | Communication device with microphone |
US20080212817A1 (en) * | 2007-03-01 | 2008-09-04 | Dietmar Lommel | Hearing device with basic structure |
US9467788B2 (en) * | 2007-03-01 | 2016-10-11 | Sivantos Gmbh | Hearing device with a frame holding hearing device components and a shell encasing the frame |
US9838770B2 (en) | 2011-03-15 | 2017-12-05 | Apple Inc. | Seamless earbud structures and methods for making the same |
US10595112B2 (en) | 2011-03-15 | 2020-03-17 | Apple Inc. | Seamless earbud structures and methods for making the same |
US20170086001A1 (en) * | 2015-09-21 | 2017-03-23 | Oticon A/S | Hearing device |
US10165377B2 (en) * | 2015-09-21 | 2018-12-25 | Oticon A/S | Hearing device |
USD959412S1 (en) * | 2020-12-04 | 2022-08-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Earphone |
Also Published As
Publication number | Publication date |
---|---|
NL270384A (zh) | |
GB992570A (en) | 1965-05-19 |
CH394303A (de) | 1965-06-30 |
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