U.S. patent application number 13/124971 was filed with the patent office on 2011-08-25 for electrical hair dryer with noise reducer and noise reducer.
Invention is credited to Oscar Jose Rodrigues.
Application Number | 20110203128 13/124971 |
Document ID | / |
Family ID | 42118861 |
Filed Date | 2011-08-25 |
United States Patent
Application |
20110203128 |
Kind Code |
A1 |
Rodrigues; Oscar Jose |
August 25, 2011 |
Electrical Hair Dryer With Noise Reducer And Noise Reducer
Abstract
Electrical hair dryer with noise reducer and noise reducer, of a
groundbreaking electrical hair dryer (9) model with a noise reducer
element (1) which can be incorporated to a hair dryer (9), or
usually, be used as fitting element, being properly attached to the
equipment (9) back side of the air entrance (18), being the said
hair dryer (9) especially designed to bring more acoustic comfort
for the user, reducing the motor and turbine assembly emitted
noise, being the said noise reducer made of phono absorbent
material and provides physical structure which allows sound waves
breaking, substantially reducing the hair dryer (9) noise
produced.
Inventors: |
Rodrigues; Oscar Jose; (San
Paulo - SP, BR) |
Family ID: |
42118861 |
Appl. No.: |
13/124971 |
Filed: |
October 20, 2009 |
PCT Filed: |
October 20, 2009 |
PCT NO: |
PCT/BR2009/000342 |
371 Date: |
April 19, 2011 |
Current U.S.
Class: |
34/96 |
Current CPC
Class: |
A45D 20/12 20130101 |
Class at
Publication: |
34/96 |
International
Class: |
A45D 20/12 20060101
A45D020/12 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 23, 2008 |
BR |
PI 0804541-0 |
May 29, 2009 |
BR |
MU 8901078-7 |
May 29, 2009 |
BR |
MU 8901079-5 |
Claims
1. "ELECTRICAL HAIR DRYER WITH NOISE REDUCER", of an electrical
hair dryer (SC) which foresees all its conventional components,
characterized by the fact of foreseeing a reducer element (1),
developed in the hair dryer's (SC) back side or in its air
entrance, being that the referred reducer (1), has in its main
construction a tapered and empty structure, preferably build with
phono absorbent material or other material of similar
characteristics, foreseeing two internal portions (2) and (3),
which are a first portion which has an internal tapered area (4)
with a multi faceted surface (5) and an external portion (6),
slightly tapered and inverted.
2. "ELECTRICAL HAIR DRYER WITH NOISE REDUCER", according to the
claim 1 and in a first preferred alternative embodiment,
characterized by the fact of comprising a hair dryer (SC) with an
extension at the back side which forms the noise reducer (1a),
being the referred reducer (1a) tapered in shape and with an
orthogonal external wall (7), which internal surface (8) is multi
faceted, having also concentric longitudinal and equidistant
cutouts (9) applied to the body of the referred extension and/or
tapered element (1a).
3. "ELECTRICAL HAIR DRYER WITH NOISE REDUCER", according to the
claim 1 and in a second preferred alternative embodiment,
characterized by the fact of comprising a hair dryer (SC), which is
also an extension of the back side of the claimed hair dryer's (SC)
body, which includes a tapered element (1b), presenting an external
orthogonal face (11) with small cutouts (12), preferably squared in
shape, aligned with the areas established by the four layered and
longitudinal elements (10), which are internally positioned, side
by side organized, orthogonally, structuring squared zones, which
reduce their own area as they are directed to the device opposite
end with the extension (1b) cutouts (12).
4. "ELECTRICAL HAIR DRYER WITH NOISE REDUCER", according to the
claim 1 and in a third preferred alternative embodiment,
characterized by the fact of comprising a hair dryer (SC) with an
extension at the back side which forms the noise reducer (1c), of
convex shape and preferably sinuous lines, being its external face
profiled and with an axial tapered element (15) positioned inside
its body, fixed by the arms (16).
5. "ELECTRICAL HAIR DRYER WITH NOISE REDUCER", according to the
claim 1, and in a fourth preferred alternative embodiment,
characterized by the fact of comprising a hair dryer (SC) with an
extension at the back side which forms the noise reducer (1d),
being the referred reducer (1d) tapered shaped and with an external
orthogonal wall (7d), which internal surface (8d) is multi faceted,
having also concentric longitudinal and equidistant cutouts (9d),
which are only applied to one portion of the noise reducer (1d)
circumference.
6. "NOISE REDUCER", comprising a tapered and profiled structured
noise reducer element (1), build with phono absorbent material or
other material of similar characteristics, characterized by the
fact of presenting two internal portions (2) and (3), which are, a
first portion which has an internal tapered area (4) with a multi
faceted surface (5), and an external portion (6), slightly tapered
and inverted, besides a ring portion (14) with hair dryer (SC)
attachment mean.
7. "NOISE REDUCER", according to the claim 6 and in a first
preferred alternative embodiment, characterized by the fact of
comprising noise reducer (1a), being the referred reducer (1a)
tapered shaped and with an external orthogonal wall (7), which
internal surface (8) is multi faceted, having also concentric
longitudinal and equidistant cutouts (9) applied to the body of the
referred extension and/or tapered element (1a) and a ring portion
(14a), with hair dryer (SC) attachment mean.
8. "NOISE REDUCER", according to the claim 6 and in a second
preferred alternative embodiment, characterized by the fact of
comprising a tapered element (1b), presenting an external
orthogonal face (11) with small cutouts (12), preferably squared in
shape aligned with the areas established by the four layered and
longitudinal elements (10), which are internally positioned, side
by side organized, orthogonally, structuring squared zones, which
reduce their own area as they are directed to the device opposite
end with the extension (1b) cutouts (12), and a ring portion (14b),
with hair dryer (SC) attachment mean.
9. "NOISE REDUCER", according to the claim 6 and in a third
preferred alternative embodiment, characterized by the fact of
comprising noise reducer (1c) which cutouts (9) are applied only
over one side of its body (1c).
10. "NOISE REDUCER", according to the claim 6, characterized by the
fact of comprising one of the noise reducer elements (1), (1a),
(1b) and (1c) foresees a proper mean to attachment, such as a ring
element (13), made of elastic-material and easily attachable to any
back grounded art hair dryer model or even be attached through any
other attachment and anchorage proper means.
11. "NOISE REDUCER", according to the claim 6, characterized by the
fact of the noise reducer which is indicated by the numeric
reference (1), and is configured as a fitting to be assembled on a
hair dryer device (SC), comprising a main body (17); a main body
(17) having a closed back wall (18), to which it is completely
merged with a surrounding wall (19); the main body (17) surrounding
wall (19), through out its external edge (20) has, internally a
ring recess (21), which receives the ring edge (22) of an adapter
ring (23); the adapter ring (23) is used to allow the noise reducer
(1) attachment to a hair dryer device (SC), which has a central
opening (24) which is surrounded by an equally ring wall (25), from
where locking teeth are projected 26 equally distributed throughout
the ring wall (25); the locking teeth (26) have, each one, a ramp
face (27); the main body's (17) surrounding wall (19) has a side
opening (29), which is provided with a protective screen (30); the
surrounding wall (19) internal face (31) incorporated a corrugated
ribbing pattern (32), which starts in the limits of the ring recess
(21) and goes until the main body (17) back wall (18) inner face
(33); from the same internal face (33) start arc-like plans (34),
being two fairly horizontal, parallel and juxtaposed (34A) and two
fairly vertical and mutually contraposed (34B), the two plans being
formed by an ordinated curves sequence which forms a pattern that
creates longitudinal ribbings (35) in each one of the plan faces
(34); the main body (17) back wall (18) internal face has a surface
pattern formed by multiple pyramidal projections (36), which shows,
each one, four faces (37).
12. "NOISE REDUCER", according to the claim 6, which is indicated
by the numeric reference (1) and is configured a fitting to be
assembled in a hair dryer device (SC), characterized by the fact of
comprising a main body (17'); the main body (17') has a closed back
wall (18'), to which it is completely merged with a surrounding
wall (19'); the main body (17') surrounding wall (19'), through out
its external edge (20') has, internally a ring recess (21'), which
receives the ring edge (22') of an adapter ring (23'); the adapter
ring (23') is used to allow the noise reducer (1) attachment to a
hair dryer device (SC), which has a central opening (24') which is
surrounded by an equally ring wall (25'), from where locking teeth
are projected (26') equally distributed throughout the ring wall
(25'); the locking teeth (26') have, each one, a ramp face (27');
the main body (17') surrounding wall (19') has a multiple tubular
sectors radially organized (38), which, together, define the air
flow entrance into the noise reducer; each tubular sector (38) is
assembled in a correspondent opening (39) produced in the
surrounding wall (19'). This opening makes the end of the
respective tubular sector (38) substantially in the same plane with
the main body (17') surrounding wall (19'); the surrounding wall
(19') internal face (31') incorporates a corrugated ribbing pattern
(32'), which starts in the limits of the ring recess (21') and goes
until the main body (17') back wall (18') inner face (33'); the
main body (17') back wall (18') internal face (33') has a surface
pattern formed by multiple pyramidal projections (36'), which
shows, each one, preferably, four faces (37').
Description
TECHNICAL FIELD
[0001] The present invention application of a groundbreaking
electrical hair dryer model with a noise reducer element which can
be incorporated to a hair dryer and also a fitting noise reducer
element properly attached to the equipment back side or the air
entrance, being the said hair dryer especially designed to bring
more acoustic comfort for the user, reducing the motor and turbine
assembly emitted noise, being the said noise reducer made of phono
absorbent material and provides physical structure which allows
sound waves breaking, substantially reducing the hair dryer noise
produced.
BACKGROUND ART
[0002] As it is of public knowledge, the consuming market is
supplied by an infinity of hair dryers models, where the most of
them emit very high level noises, which come from its turbine,
motor, helix etc.
[0003] It is known that hair drying is not an easy task to be
accomplished alone, because adequately directing the air flow,
beyond keep the arms raised for several minutes, holding the device
and arranging, stretching the hair.
[0004] According to a research based on internet, some companies
performed a series of specialized tests (PRO TESTE Magazine nr. 15,
June 2003) and the result was that all the analyzed hair dryers
showed very high noise levels.
[0005] According to the Brazilian standards (ABNT) and
international health regulations, the noise pollution emitted by
tested hair dryers was over the highest acceptable levels--which is
50 dB max.
[0006] As all the devices presented noise level over 77 dB, it is
possible that some users suffer hearing losses for being frequently
and for a long period exposed to this kind of emitted noise.
BRIEF DESCRIPTION OF THE OBJECT
[0007] Thinking on this inconvenience and interested in bringing
improvement to the consumer market, the inventor, after countless
researches, developed this "ELECTRICAL HAIR DRYER WITH NOISE
REDUCER AND NOISE REDUCER", which must get among its similar and
get distinction in the consumer market for present an electrical
hair dryer featuring a noise reducer device or be used as a fitting
element being attached to the back side or at the hair dryer
inbound air flow, being the referred device, especially developed
to bring the user more acoustic comfort, for reducing the noises
from the motor and turbine set present in hair dryers, thus, the
noise reducer element is structured in phono absorbent material and
presents physical structure which allows noise waves breaking,
substantially reducing noises produced by the hair dryer.
[0008] The claimed hair dryer foresees a noise reducer imbedded in
its structure, in other words, the referred reducer is an extension
of the claimed hair dryer body, for its production comprises all
hair dryers' conventional elements, with an empty tapered element
configured device, preferably, build with phono absorbent material
or other material of similar characteristics, presenting two
internal portions, which are, a first portion which establishes an
internal tapered area with a multi faceted surface and an external
portion slightly tapered and inverted.
[0009] This way, the emitted sound waves crash with the internal
tapered portion of the multi faceted wall and are broken into
smaller waves, which are outbound the device, reducing the noise
level.
[0010] A first embodiment of the referred hair dryer, which is also
an extension of the back side of the claimed hair dryer's body,
include a tapered shape element and has two different elements,
which are an end first portion in which the internal layered face
has a multi faceted surface, and an intermediate portion featuring
concentric and equidistant longitudinal cutouts applied to the
tapered element body.
[0011] This way, the sound waves go into the device breaking
themselves at the fixed multi faceted internal surface of the
referred device, then reverberating towards the fixed cutouts in
the reducer device body.
[0012] There is also a second embodiment of the hair dryer, which
is also an extension of the back side of the claimed hair dryer's
body, that foresees an empty tapered element, which internal
portion presents layered longitudinal elements, organized side by
side, orthogonally, structuring squared zones, which reduce their
own area as they are directed to the device opposite end.
[0013] This hair dryer device end face has squared cutouts
organized toward the squared zones, so that the sound waves are
reduced and understate the noise.
[0014] The present patent also foresees a series of embodiments of
the same device, which are defined as fittings that can be added to
the hair dryer itself.
[0015] The embodiments are described through the Utility Model
patents claims of the same title, "CONSTRUCTIVE ARRANGEMENT ADDED
IN HAIR DRYER NOISE REDUCER", serials MU 8901078-7 and MU
8901079-5, lodged at May 29, 2009.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Complementing the present disclosure in order to achieve a
better understanding of the present invention features and
according to its preferred embodiment, there is a set of drawings
attached to the description, where, in an exemplified way, there
are the following examples:
[0017] FIG. 1 shows a side view in partial cut of the hair dryer
main model with the noise reducer attached;
[0018] FIG. 2 shows a main noise reducer device perspective
view;
[0019] FIG. 3 shows a main noise reducer device longitudinal
view;
[0020] FIG. 4 shows a first embodiment of the noise reducer device
perspective view;
[0021] FIG. 5 shows a first embodiment of the noise reducer device
longitudinal view;
[0022] FIG. 6 shows a second embodiment of the noise reducer device
perspective view;
[0023] FIG. 7 shows a second embodiment of the noise reducer device
longitudinal view;
[0024] FIG. 8 shows a noise reducer device perspective view;
[0025] FIG. 9 shows the noise reducer element attached, by an
elastic ring, to the hair dryer cut view;
[0026] FIG. 10 shows a third embodiment of the noise reducer device
perspective view;
[0027] FIG. 11 shows a third embodiment of the noise reducer device
back perspective view;
[0028] FIG. 12 shows the third embodiment of the noise reducer
element attached, by an elastic ring, to the hair dryer cut
view;
[0029] FIG. 13 shows a fourth embodiment of the noise reducer
device perspective view;
[0030] FIG. 14 shows a fourth embodiment of the noise reducer
device longitudinal view;
[0031] FIG. 15 shows an schematic and an exploded view of a hair
dryer generic model in a relative positioning with an adapter ring
and in the sequence, the referred noise reducer, concerning the
fifth embodiment;
[0032] FIG. 16 shows the fifth embodiment of the noise reducer in a
cut and in a perspective view, which allows its internal portion
detailed view;
[0033] FIG. 17 shows the claimed noise reducer frontal view
according to the fifth embodiment, where it can be seen its various
corrugated internal plans, as well as the three dimensional
projections which come from its back wall, and also its internal
surface corrugated profile;
[0034] FIG. 18 shows a schematic cut of the attachment among the
hair dryer, adapter ring and the noise reducer itself;
[0035] FIG. 19 shows an schematic and an exploded view of a hair
dryer generic model in a relative positioning with an adapter ring
and in the sequence, the referred noise reducer, concerning the
sixth embodiment;
[0036] FIG. 20 shows the sixth embodiment of the noise reducer in a
cut and in a perspective view, which allows its internal portion
detailed view;
[0037] FIG. 21 shows the claimed noise reducer frontal view
according to the object of this Patent, where it can be seen its
tubular sections radially organized which, together, define the air
flow admittance into the noise reducer inner portion, as well as
the three dimensional projections which come from its back, and
also its internal surface corrugated profile; and
[0038] FIG. 22 shows a schematic cut of the attachment among the
hair dryer, adapter ring and the noise reducer itself, still
concerning the sixth embodiment.
DETAILED DESCRIPTION OF THE INVENTION
[0039] Concerning the drawings, the "ELECTRICAL HAIR DRYER WITH
NOISE REDUCER AND NOISE REDUCER" present invention deals with,
especially of an electric hair dryer SC, featuring a noise reducer
1e also foresees the possibility of the referred noise reducer be a
fitting element, attachable at the back side of a conventional hair
dryer by means of an elastic-material sleeve.
[0040] The claimed hair dryer has all its conventional components,
further a noise reducer element 1, developed at the back side or at
the hair dryer SC entrance air flow F, being the referred reducer
1, especially developed to bring the user more acoustic comfort,
reducing the noises from the motor and turbine set, for being the
noise reducer element structured in phono absorbent material and
presents physical structure which allows noise waves OS breaking,
substantially reducing noises produced by the hair dryer SC.
[0041] The referred noise reducer element 1 main construction has a
tapered and empty structure, preferably build with phono absorbent
material or other material of similar characteristics, presenting
two internal portions 2 and 3, which are, a first portion which has
an internal tapered area 4 with a multi faceted surface 5 and an
external portion 6, slightly tapered and inverted.
[0042] This way, the emitted sound waves OS collide with the wall
of the multifaceted area 5 of the internal tapered portion 4 and
are broken into smaller waves OS, which are outbound the device 1,
reducing the noise level.
[0043] A first embodiment of the referred hair dryer SC concerns to
a hair dryer SC with an extension at the back side which forms the
noise reducer 1a, being the referred reducer 1a tapered in shape
and with an orthogonal external wall 7, which internal surface 8 is
multi faceted, having also concentric longitudinal and equidistant
cutouts 9, which can be applied all around the noise reducer 1a
circumference, in an alternative embodiment 1d, the hair dryer SC
has an extension at the back which forms the noise reducer 1d,
being the referred reducer 1d tapered shaped and with an external
orthogonal wall 7d, which internal surface 8d is multi faceted,
having also concentric longitudinal and equidistant cutouts 9d,
which are only applied to one portion of the noise reducer 1d
circumference.
[0044] The partial cutouts developed at the noise reducer 1d are
developed to keep themselves, in case the equipment is
professionally used, turned to the practitioner who is using it, in
other words, be the user right or left handed, he can turns the
device positioning the cutouts towards himself, providing more
safety to the customer's hair.
[0045] This way, the sound waves OS go into the device 1d breaking
themselves at the fixed multi faceted internal surface of the
referred extension 1d, then, reverberating towards the fixed
cutouts 9d in the reducer device body 1d.
[0046] There is also a second embodiment of the referred hair
dryer, which is also an extension of the back side of the claimed
hair dryer's SC body, which includes a tapered element 1b,
presenting an external orthogonal face 11 with small cutouts 12,
preferably squared in shape, aligned with the areas established by
the four layered and longitudinal elements 10, which are internally
positioned, side by side organized, orthogonally, structuring
squared zones, which reduce their own area as they are directed to
the device opposite end with the extension 1b cutouts 12.
[0047] A third embodiment of the referred hair dryer SC concerns to
a hair dryer SC with an extension at the back side which forms the
noise reducer 1c, being the reducer 1c convex in its shape, of
preferably sinuous lines, being its external face profiled and with
an axial tapered element 15 positioned inside its body, fixed by
the arms 16.
[0048] Also, each one of the noise reducer 1, 1a, 1b, 1c and 1d
models foresaw in the hair dryers SC of the present claimed
invention, can be commercialized individually, in other words, they
can be part of a hair dryer SC set of accessories, for this, the
referred single devices foresee external ring portions 14, 14a, 14b
and 14c, developed to hold ring elements 13, these rings are made
of elastic-material and are easily attached to any back grounded
art hair dryer model or even be attached through any other
attachment and anchorage proper means.
[0049] Although the clear and incontestable improvement presented
by the subject treated at the PI0804541-0 Patent, this applicant
continues with its researches and also developed, other two noise
reducer different models claimed at the referred PI 0804541-0,
lodged as Utility Models, where the first one is a noise reducer
which also has a simple and functional building, without any
efficiency loss of the originally developed noise reducer.
[0050] This first of the referred noise reducer two models, are
different of its similar already seen at the Patent PI0804541-0 for
having an adapter ring, which allows its attachment to various hair
dryers types or models.
[0051] Another novel aspect in the described noise reducer is in
the surfaces or internal corrugated plans concept which along with
the back projections basically resembling a pyramid, act in a more
efficient way at the absorption of the noise produced by the hair
dryer, effect that is also improved by the radial inbound air flow,
no more axial, as previously foreseen.
[0052] Still concerning the adapter ring, even though be firmly
mounted at the hair dryer body, it allows the attached noise
reducer to be turned, assuring that the noise reducer air entrance
could be especially positioned in such a way to prevent from
accidental hair suction.
[0053] The noise reducer referred model, as shown in FIG. 15, is
generally indicated by the numeric reference 1, and it is defined
by a main body 17, preferably made of elastomer by injection.
[0054] The main body 17 is configured as a slightly tapered part,
having a closed back wall 18, to which it is completely merged with
a surrounding wall 19.
[0055] The main body 17 surrounding wall 19, through out its
external edge 20 has, internally a ring recess 21, which allows the
referred main body 17 to be attached to the ring edge 22 of an
adapter ring 23.
[0056] The adapter ring 23 is used to allow the noise reducer 1
attachment to a hair dryer device SC.
[0057] The adapter ring 23 can have a wide range of means which
allows its attachment to the hair dryer device SC body. These means
can vary in function of each hair dryer SC model drawings and
design particularities. This way, the adapter ring model 23
presented here must be seen as one among various forms of
substantiation of such component, concerning its attachment means
to the hair dryer SC.
[0058] The adapter ring 23 has a central opening 24 which is
surrounded by an equally ring wall 25, from where locking teeth are
projected 26 equally distributed throughout the ring wall 25.
[0059] The locking teeth 26 are designed to have, each one, a
ramp-like face 27 aimed to allow their locking at the internal area
of the back opening 28, foresaw in the hair dryer SC and through
which the air flow F goes into the device.
[0060] The main body's 17 surrounding wall 19 has a side opening
29, which is provided with a protective screen 30 to prevent
foreigner objects from entering the hair dryer SC main body 17.
[0061] The referred side opening 29 is designed to offer a free
passing area which does not allow inbound air flow to the hair
dryer SC reduction or blocking F. This design also takes in account
the screen 30.
[0062] The surrounding wall 19 internal face 31 incorporated a
corrugated ribbing pattern 32, which starts in the limits of the
ring recess 21 and goes until the main body 17 back wall 18 inner
face 33.
[0063] From the same internal face 33 start arc-like plans 34,
being two fairly horizontal, parallel and juxtaposed 34A and two
fairly vertical and mutually contraposed 34B, the two referred
types being formed by an ordinated curves sequence which forms a
pattern that creates longitudinal ribbings 35 in each one of the
plan faces 34.
[0064] The noise reducer 1 is designed to be mounted at the back of
the hair dryer device SC, in such a way that the collected air F is
obliged to pass through the reducer 1 through its side opening
29.
[0065] By entering the noise reducer 1, the air F follows a way
between the arc-like plans 34 before it takes an axial way, towards
the hair dryer SC entrance, as indicated by the arrows F, at FIG.
16.
[0066] The main body 17 back wall 18 internal face has a surface
pattern formed by multiple pyramidal projections 36, which shows,
each one, preferably, four faces 37.
[0067] Inversely, the sound waves OS, caused by the hair dryer SC
running, which tends to propagate them to its back portion, meets
the noise reducer 1, where they are absorbed and fragmented even by
the ribbings patterns 32 as by the arc-like plans format 34 and
also by the pyramidal projections 36.
[0068] The main body 17 assembly in relation to the adapter ring 23
is accomplished in such a way that the adapter ring, even being
fixed to the hair dryer SC body and still holding the axially the
referred main body 17, allows the relative rotational movement of
the main body 17 around the ring edge 22 of the ring 23.
[0069] This rotational movement R is especially interesting in
allowing that the main body 17 could be turned in a way to direct
its opening side 29 to a position relatively far from the drying
hair.
[0070] This feature is especially useful when the hair dryer SC
(along with the noise reducer 1) is professionally used.
[0071] The main body 17 rotational capacity R in relation to the
adapter ring 23 is schematically shown in FIG. 18, where the double
arrow R alludes such rotational capacity R around the reducer 1
axis.
[0072] Besides the noise reducer main model described as PI
0804541-0, the subsequent second model previously referred to,
which was lodged as Utility Model, also differs from its similar
foresaw at Patent application PI0804541-0 for having a adapter
ring, which allows its attachment to various types of hair dryer
models.
[0073] Another novel aspect in the described noise reducer is in
foreseeing radially tubular sectors concept which, together, define
the air flow entrance in the noise reducer, which is in a
positioning condition that difficulties, inversely, the propagation
of the sound which comes from the hair dryer device running.
[0074] In the said noise reducer, the reducer inbound air flow
becomes radial, no more axial, as previously foreseen.
[0075] Still concerning the adapter ring, even though be firmly
mounted at the hair dryer body, it allows the attached noise
reducer to be turned, assuring that the noise reducer air entrance
could be especially positioned in such a way to prevent from
accidental hair suction.
[0076] The referred noise reducer is generally indicated by the
numeric reference 1, and it is defined by a main body 17,
preferably made of elastomer by injection.
[0077] The main body 17 is configured as a slightly tapered part,
having a closed back wall 18, to which it is completely merged with
a surrounding wall 19.
[0078] The main body 17' surrounding wall 19', through out its
external edge 20' has, internally a ring recess 21', which allows
the referred main body 17' to be attached to the ring edge 22' of
an adapter ring 23'.
[0079] The adapter ring 23' is used to allow the noise reducer 1
attachment to a hair dryer device SC.
[0080] The adapter ring 23' can have a wide range of means which
allows its attachment to the hair dryer device SC body. These means
can vary in function of each hair dryer SC model drawings and
design particularities. This way, the adapter ring model 23'
presented here must be seen as one among various forms of
substantiation of such component, concerning its attachment means
to the hair dryer SC.
[0081] The adapter ring 23' has a central opening 24' which is
surrounded by an equally ring wall 25', from where locking teeth
are projected 26' equally distributed throughout the ring wall
25'.
[0082] The locking teeth 26' are designed to have, each one, a
ramp-like face 27' aimed to allow their locking at the internal
area of the back opening 28' foresaw in the hair dryer SC and
through which the air flow goes into the device.
[0083] The main body 17' surrounding wall 19' has a multiple
tubular sectors radially organized 38 which, together, define the
air flow entrance into the noise reducer.
[0084] Each tubular sector 38 is assembled in a correspondent
opening 39 (especially shown in FIG. 20), in which the surrounding
wall 19' is produced. This opening 39 makes the end of the
respective tubular sector 38 substantially in the same plane with
the main body 17' surrounding wall 19'. Thus, each tubular sector
38 has an extension to the main body 17' interior, such as can be
especially understood through the FIG. 20 view, which is a cutout
taken in such a way to show a full cut of one of the several
tubular sectors 38 and its respective opening 39.
[0085] All the tubular sectors 38 are designed to offer a free
passing area which does not allow inbound air flow to the hair
dryer SC reduction or blocking.
[0086] The surrounding wall 19' internal face 31' incorporates, at
least, one sector of its area, a corrugated ribbing pattern 32',
which starts in the limits of the ring recess 21 and goes until the
main body 17 back wall 18 inner face 33.
[0087] The noise reducer 1 is designed to be mounted at the back of
the hair dryer device SC, in such a way that the collected air is
obliged to pass through the reducer 38 through the tubular sectors
38.
[0088] By entering the noise reducer 1, the air follows a way
initially radial then it takes the axial direction to get into the
hair dryer SC, as indicated by the arrows F at FIG. 20.
[0089] The main body 17' back wall 18' internal face 33' has a
surface pattern formed by multiple pyramidal projections 36', which
shows, each one, preferably, four faces 37'.
[0090] Inversely, the sound waves OS, caused by the hair dryer SC
running, which tends to propagate themselves to its back portion,
meets the noise reducer 1, where they are absorbed and fragmented
even by the ribbings patterns 32' as by the pyramidal projections
36'.
[0091] The main body 17' assembly in relation to the adapter ring
23' is accomplished in such a way that the adapter ring, even being
fixed to the hair dryer SC body and still holding the axially the
referred main body 17', allows the relative movement of the main
body 17' around the ring edge 22' of the ring 23'.
[0092] This rotational movement R is especially interesting in
allowing that the main body 17' could be turned in a way to direct
its tubular sectors 29 to a position relatively far from the drying
hair.
[0093] This feature is especially useful when the hair dryer SC
(along with the noise reducer 1) is professionally used.
[0094] The main body 17' rotational capacity R in relation to the
adapter ring 23' is schematically shown in FIG. 18. Where the
double arrow R alludes such rotational capacity R around the
reducer 1 axis.
[0095] Thus, this document represent and add subject to the three
documents previously lodged, being PI 0804541-0 and the two Utility
Models identified with the lodge serials numbers MU 8901078-7 and
MU 8901079-5, where both documents are subsequent variations,
properly innovated by the referred hair dryer noise reducer.
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