CA2165853C - Sound collecting device for acoustic boards - Google Patents
Sound collecting device for acoustic boards Download PDFInfo
- Publication number
- CA2165853C CA2165853C CA 2165853 CA2165853A CA2165853C CA 2165853 C CA2165853 C CA 2165853C CA 2165853 CA2165853 CA 2165853 CA 2165853 A CA2165853 A CA 2165853A CA 2165853 C CA2165853 C CA 2165853C
- Authority
- CA
- Canada
- Prior art keywords
- collecting device
- sound collecting
- perforations
- different sizes
- tubular member
- 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 - Fee Related
Links
- 230000003584 silencer Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
A sound collecting device for acoustic boards including a conical hood formed with a flange at a large end and external threads under said flange, the conical hood having a plurality of perforations with different sizes and an annular groove at an inner surface of a small end thereof, a front silencer being a tubular member having a hemispherical top and an open bottom, the front silencer having a plurality of perforations with different sizes and being formed close to the bottom with an annular projection adapted to engage with the annular groove, and a rear silencer being a tubular member integrally formed with the small end of the conical hood and having a conical recess at an outer end thereof.
Description
TITLE: A SOUND COLLECTING DEVICE FOR ACOUSTIC BOARDS
This invention relates to an improved sound collecting device for acoustic boards.
It has been found that various conventional acoustic boards have been developed to meet the increasing need of isolating the noise from one side to another. However, some are too bulky in volume and difficult to construct while others are too expensive for most people.
Therefore, it is an object of the present invention to provide a sound collecting device which can greatly improve the efficiency of the acoustic board.
It is an object of an aspect of the present invention to provide a sound collecting device for acoustic boards which can effectively isolate the noise from one side to another.
It is an object of an aspect of the present invention to provide a sound collecting device for acoustic boards which is compact in size.
It is an object of an aspect of the present invention 'o provide a sound collecting device for acoustic boards which is easy to assemble.
It is an object of an aspect of the present invention to provide a sound collecting device for acoustic boards which is expensive to manufacture.
An aspect of the invention is as follows:
A sound collecting device for acoustic boards comprising:
a conical hood formed with a flange at a large end thereof and external threads under said flange, said conical hood having a plurality of perforations with different sizes and an annular groove at an inner surface of a small end thereof;
This invention relates to an improved sound collecting device for acoustic boards.
It has been found that various conventional acoustic boards have been developed to meet the increasing need of isolating the noise from one side to another. However, some are too bulky in volume and difficult to construct while others are too expensive for most people.
Therefore, it is an object of the present invention to provide a sound collecting device which can greatly improve the efficiency of the acoustic board.
It is an object of an aspect of the present invention to provide a sound collecting device for acoustic boards which can effectively isolate the noise from one side to another.
It is an object of an aspect of the present invention to provide a sound collecting device for acoustic boards which is compact in size.
It is an object of an aspect of the present invention 'o provide a sound collecting device for acoustic boards which is easy to assemble.
It is an object of an aspect of the present invention to provide a sound collecting device for acoustic boards which is expensive to manufacture.
An aspect of the invention is as follows:
A sound collecting device for acoustic boards comprising:
a conical hood formed with a flange at a large end thereof and external threads under said flange, said conical hood having a plurality of perforations with different sizes and an annular groove at an inner surface of a small end thereof;
a front silencer in the form of a first tubular member having a rounded top and an open bottom, said first tubular member having a plurality of perforations with different sizes formed therein and including an annular projection adjacent said open bottom adapted to engage with said annular groove; and a rear silencer in the form of a second tubular member integrally formed with said small end of said conical hood and having a conical recess at an outer end thereof, said second tubular member having a plurality of perforations formed therein.
Other objects of the invention will in part be obvious and in part hereinafter pointed out.
The invention accordingly consists of features of constructions and method, combination of elements, arrangement of parts and steps of the method which will be exemplified in the constructions and method hereinafter disclosed, the scope of the application of which will be indicated in the claims following.
FIG. 1 is an exploded view of a sound collecting device for acoustic boards according to the present invention.
FIG. 2 is a sectional view of the sound collecting device mounted on an acoustic board;
FIG. 3 is a perspective view of a second preferred embodiment of the sound collecting device;
FIG. 4 is a sectional view of the sound collecting ~~~~~~3 device of FIG. 3 mounted on an acoustic board;
FIG. 5 is a perspective view of a third preferred embodiment of the sound collecting device; and FIG. 6 is a sectional view of the sound collecting device of FIG. 5 mounted on an acoustic board.
For the purpose to promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings. Specific language will be used to describe same. It will, nevertheless, be understood that no limitation of the scope of the invention is thereby intended, such alternations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated herein being contemplated as would normally occur to one skilled in the art to which the invention relates.
With reference to the drawings and in particular to FIGS. 1 and 2 thereof, the sound collecting device for acoustic boards according to the present invention mainly comprises a conical hood l, a front silencer 2A, and a rear silencer 2B.
The conical hood 1 is formed with a flange 11 at the large end (see FIG. 1) and external threads 12 under the flange 11 so that the conical hood 1 can be firmly mounted on an opening 31 of a front panel 3A of an acoustic board.
Further, the conical hood 1 has a plurality of perforations 13 with different sizes on its wall in order to absorb noises of various frequencies and provided with a rear silencer 2E at the small end. The small end of the conical hood 1 is formed with an annular groove 14 at its inner surface.
The front silencer 2A is a tubular member having a hemispherical top 21 (with respect to FIG. 1) and an open bottom. In addition, the outer surface of the front silencer 2A includes an annular projection 22 adjacent the bottom end of the front silencer, which is adapted to engage with the annular groove 14 of the conical hood 1. The front silencer 2A
has a plurality of perforations 23 with different sizes for absorbing noise of various frequencies.
Other objects of the invention will in part be obvious and in part hereinafter pointed out.
The invention accordingly consists of features of constructions and method, combination of elements, arrangement of parts and steps of the method which will be exemplified in the constructions and method hereinafter disclosed, the scope of the application of which will be indicated in the claims following.
FIG. 1 is an exploded view of a sound collecting device for acoustic boards according to the present invention.
FIG. 2 is a sectional view of the sound collecting device mounted on an acoustic board;
FIG. 3 is a perspective view of a second preferred embodiment of the sound collecting device;
FIG. 4 is a sectional view of the sound collecting ~~~~~~3 device of FIG. 3 mounted on an acoustic board;
FIG. 5 is a perspective view of a third preferred embodiment of the sound collecting device; and FIG. 6 is a sectional view of the sound collecting device of FIG. 5 mounted on an acoustic board.
For the purpose to promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings. Specific language will be used to describe same. It will, nevertheless, be understood that no limitation of the scope of the invention is thereby intended, such alternations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated herein being contemplated as would normally occur to one skilled in the art to which the invention relates.
With reference to the drawings and in particular to FIGS. 1 and 2 thereof, the sound collecting device for acoustic boards according to the present invention mainly comprises a conical hood l, a front silencer 2A, and a rear silencer 2B.
The conical hood 1 is formed with a flange 11 at the large end (see FIG. 1) and external threads 12 under the flange 11 so that the conical hood 1 can be firmly mounted on an opening 31 of a front panel 3A of an acoustic board.
Further, the conical hood 1 has a plurality of perforations 13 with different sizes on its wall in order to absorb noises of various frequencies and provided with a rear silencer 2E at the small end. The small end of the conical hood 1 is formed with an annular groove 14 at its inner surface.
The front silencer 2A is a tubular member having a hemispherical top 21 (with respect to FIG. 1) and an open bottom. In addition, the outer surface of the front silencer 2A includes an annular projection 22 adjacent the bottom end of the front silencer, which is adapted to engage with the annular groove 14 of the conical hood 1. The front silencer 2A
has a plurality of perforations 23 with different sizes for absorbing noise of various frequencies.
The rear silencer 2B is also a tubular member integrally formed with the small end of the conical hood 1 and has a conical recess 25 at its outer end and a plurality of perforations 24 with different sizes.
when in use, the noise is first collected by the conical hood 1 and then passes through the front silencer 2A and the rear silencer 2B. The working principle of the sound collecting device is that the sound will be compressed and expanded when passing through the perforations 13, 23 and 24 thereby largely decreasing the noise in magnitude and therefore effectively isolating the noise from one side to another.
FIGS. 3 and 4 illustrate a second preferred embodiment of the present invention. As shown, the large end of the conical hood 1 is provided with internal threads 15 which is adapted to engage with external threads 41 of a hemispherical cover 4. The hemispherical cover 4 has a plurality of perforations 42 with different sizes for absorbing noises of various frequencies.
FIGS. 5 and 6 illustrate a third preferred embodiment of the present invention. As can be seen, the front silencer 2A is provided With an enlarged ball-shaped portion 2C instead of the hemispherical top 21. The enlarged ball-shaped portion 2C is formed with a plurality of perforations with different sizes for absorbing noises of various frequencies.
The invention is naturally not limited in any sense to the particular features specified in the forgoing or to the details of the particular embodiment which has been chosen in order to illustrate the invention.
Consideration can be given to all kinds of variants of the particular embodiment which has been described by way of example and of its constituent elements without thereby departing from the scope of the invention. This invention accordingly includes all the means constituting technical equivalents of the means described as well as their combinations.
when in use, the noise is first collected by the conical hood 1 and then passes through the front silencer 2A and the rear silencer 2B. The working principle of the sound collecting device is that the sound will be compressed and expanded when passing through the perforations 13, 23 and 24 thereby largely decreasing the noise in magnitude and therefore effectively isolating the noise from one side to another.
FIGS. 3 and 4 illustrate a second preferred embodiment of the present invention. As shown, the large end of the conical hood 1 is provided with internal threads 15 which is adapted to engage with external threads 41 of a hemispherical cover 4. The hemispherical cover 4 has a plurality of perforations 42 with different sizes for absorbing noises of various frequencies.
FIGS. 5 and 6 illustrate a third preferred embodiment of the present invention. As can be seen, the front silencer 2A is provided With an enlarged ball-shaped portion 2C instead of the hemispherical top 21. The enlarged ball-shaped portion 2C is formed with a plurality of perforations with different sizes for absorbing noises of various frequencies.
The invention is naturally not limited in any sense to the particular features specified in the forgoing or to the details of the particular embodiment which has been chosen in order to illustrate the invention.
Consideration can be given to all kinds of variants of the particular embodiment which has been described by way of example and of its constituent elements without thereby departing from the scope of the invention. This invention accordingly includes all the means constituting technical equivalents of the means described as well as their combinations.
Claims (4)
1. A sound collecting device for acoustic boards comprising:
a conical hood formed with a flange at a large end thereof and external threads under said flange, said conical hood having a plurality of perforations with different sizes and an annular groove at an inner surface of a small end thereof;
a front silencer in the form of a first tubular member having a rounded top and an open bottom, said first tubular member having a plurality of perforations with different sizes formed therein and including an annular projection adjacent said open bottom adapted to engage with said annular groove;
and a rear silencer in the form of a second tubular member integrally formed with said small end of said conical hood and having a conical recess at an outer end thereof, said second tubular member having a plurality of perforations formed therein.
a conical hood formed with a flange at a large end thereof and external threads under said flange, said conical hood having a plurality of perforations with different sizes and an annular groove at an inner surface of a small end thereof;
a front silencer in the form of a first tubular member having a rounded top and an open bottom, said first tubular member having a plurality of perforations with different sizes formed therein and including an annular projection adjacent said open bottom adapted to engage with said annular groove;
and a rear silencer in the form of a second tubular member integrally formed with said small end of said conical hood and having a conical recess at an outer end thereof, said second tubular member having a plurality of perforations formed therein.
2. The sound collecting device as claimed in Claim l, further comprising a hemispherical cover threadedly engaged with said large end of said conical hood and formed with a plurality of perforations with different sizes.
3. The sound collecting device as claimed in Claim 1 or 2 wherein said rounded top is hemispherical.
4. The sound collecting device as claimed in claim 1 or 2 wherein said rounded top is ball-shaped, said rounded top being formed with a plurality of perforations with different sizes for absorbing noises of various frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2165853 CA2165853C (en) | 1995-12-21 | 1995-12-21 | Sound collecting device for acoustic boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2165853 CA2165853C (en) | 1995-12-21 | 1995-12-21 | Sound collecting device for acoustic boards |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2165853A1 CA2165853A1 (en) | 1997-06-22 |
| CA2165853C true CA2165853C (en) | 2001-05-08 |
Family
ID=4157208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2165853 Expired - Fee Related CA2165853C (en) | 1995-12-21 | 1995-12-21 | Sound collecting device for acoustic boards |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2165853C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2459693B (en) * | 2008-05-01 | 2010-03-24 | Samw Hong Jen Wang | Acoustic absorbing device |
| US10808399B2 (en) * | 2017-10-12 | 2020-10-20 | Honeywell International Inc. | Enhanced acoustic cell and enhanced acoustic panel, and methods of producing the same |
-
1995
- 1995-12-21 CA CA 2165853 patent/CA2165853C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2165853A1 (en) | 1997-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5491310A (en) | Acoustic board | |
| US5185504A (en) | Acoustic board | |
| US6352134B1 (en) | Acoustic board | |
| USD398044S (en) | Air cleaner | |
| US5082084A (en) | Extensible sound case | |
| US5004070A (en) | Acoustic board | |
| IL112386A0 (en) | Device for the suppression of snoring | |
| CA2165853C (en) | Sound collecting device for acoustic boards | |
| CA2441420A1 (en) | Double-dome speaker | |
| AU2001281644A1 (en) | Mounting device for a filter and sound damper unit on the compressor input of a turbocharger | |
| USD408560S (en) | Pillar | |
| USD480386S1 (en) | Sound bug reproducing device | |
| USD381776S (en) | Avian nest box | |
| JPH0653756U (en) | Air intake duct noise absorber | |
| JPS6161597B2 (en) | ||
| USD390212S (en) | Icon for a computer screen | |
| USD395696S (en) | Downspout noise eliminator | |
| DE19601227A1 (en) | Noise absorption device for sound proofing panels | |
| USD353249S (en) | Combined environmental trash separator and compactor | |
| USD392964S (en) | Icon for a computer screen | |
| KR970025270A (en) | Microphone anti-noise device for voice input | |
| JPS63196513U (en) | ||
| JPS5967796A (en) | Microphone | |
| JPS6041469Y2 (en) | Silent ventilation system | |
| EP1148760A3 (en) | Electroacoustic transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |