U.S. patent application number 14/014196 was filed with the patent office on 2014-06-19 for bird-proof exhaust vent cover appartus and methods.
The applicant listed for this patent is Michael Timothy Carter. Invention is credited to Michael Timothy Carter.
Application Number | 20140170962 14/014196 |
Document ID | / |
Family ID | 50931450 |
Filed Date | 2014-06-19 |
United States Patent
Application |
20140170962 |
Kind Code |
A1 |
Carter; Michael Timothy |
June 19, 2014 |
BIRD-PROOF EXHAUST VENT COVER APPARTUS AND METHODS
Abstract
Provided, herein is a bird proof exhaust vent apparatus, the
apparatus comprising a top portion, the top portion comprising a
vent inlet opening disposed for connection to an exhaust vent of a
building structure, the exhaust vent apparatus further comprising a
sidewall portion in connection with the top portion, the sidewall
portion comprising an vertically oriented elongate sidewall portion
forming a conduit and terminating in an outlet opening, wherein the
conduit has a cross-sectional, dimension that is less than the
wingspan of a target bird.
Inventors: |
Carter; Michael Timothy;
(Laurel, MD) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Carter; Michael Timothy |
Laurel |
MD |
US |
|
|
Family ID: |
50931450 |
Appl. No.: |
14/014196 |
Filed: |
August 29, 2013 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
61700970 |
Sep 14, 2012 |
|
|
|
Current U.S.
Class: |
454/367 |
Current CPC
Class: |
F24F 13/082
20130101 |
Class at
Publication: |
454/367 |
International
Class: |
F24F 13/20 20060101
F24F013/20 |
Claims
1. A bird proof exhaust vent apparatus, the apparatus comprising a
top portion, the top portion comprising a vent inlet opening
disposed for connection to an exhaust vest of a building structure,
the exhaust vent apparatus further comprising a sidewall portion in
connection with the top portion, the side wall portion comprising
an vertically oriented elongate sidewall portion forming a conduit
and terminating in an outlet opening, wherein the conduit has a
cross-sectional dimension that is less than the wingspan of a
target bird.
2. The bird proof exhaust vent apparatus of claim 1, wherein the
cross-sectional dimension of the vertically elongate side wail
portion is a cross-sectional width of less than 7 inches.
3. The bird proof exhaust vent apparatus of claim 2, wherein the
vertically elongate sidewall portion is at least 8 inches long.
4. The bird proof exhaust vent apparatus of claim 3, wherein the
vertically elongate sidewall portion includes a permeable
portion.
5. The bird proof exhaust vent apparatus of claim 4, wherein the
vertically elongate sidewall portion includes a permeable portion
that comprises a screen material.
6. The bird proof-exhaust vent apparatus of claim 5, wherein the
screen material comprises. a square mesh material.
7. The bird proof exhaust vent apparatus of claim 1, further
comprising a mounting portion configured for attachment to the
building-structure.
8. The bird proof exhaust vent apparatus of claim 7, wherein the
mounting portion comprises a back portion attached to the sidewall
portion, the back portion comprising mounting means for attachment
to the building structure.
9. The bird proof exhaust vent apparatus of claim 1, wherein the
top portion further comprises louvers for opening and closing of
the inlet vent opening.
10. The bird proof exhaust vent apparatus of claim 9, wherein the
cross-sectional dimension of the vertically elongate sidewall
portion is a cross-sectional width of less than 7 inches.
11. The bird proof exhaust vent apparatus of claim 10, wherein the
vertically elongate sidewall portion is at least 8 inches long.
12. The bird proof exhaust vent apparatus of claim 11, wherein the
vertically elongate sidewall portion includes a permeable
portion.
13. The bird proof exhaust vent apparatus of claim 12, wherein the
vertically elongate sidewall portion includes a permeable portion
that comprises a screen material.
14. The bird proof exhaust vent apparatus of claim 13, wherein the
screen material comprises a square mesh material.
15. The bird proof exhaust vent apparatus of claim 14, further
comprising a mounting portion configured for attachment to the
building structure.
16. The bird proof exhaust vent apparatus of claim 15, wherein the
mounting portion comprises a back portion attached to the sidewall
portion, the back portion comprising mounting means for attachment
to the building structure.
Description
FIELD OF THE INVENTION
[0001] The present disclosure relates to exhaust vents, air inlets
and outlets. In particular, the present disclosure relates to
bird-proof exhaust vent covers.
BACKGROUND
[0002] Exhaust vents, such as exhaust vents for clothes dryers and
bathroom exhaust fans, allow birds to get into the exhaust duct and
build nests. The resulting obstruction causes air flow issues, as
well as safety issues, and results in increased operational and
repair expenses, as well as increased utility bills. Known exhaust
vents sometimes include a mesh screen to keep birds out, but the
screen catches lint, dust, causing the screen itself to become an
undesirable obstacle to air flow. For example, for clothes dryer
vents having a screen, within a few weeks to months the screen
becomes blocked by lint, causing the dry time to be extended (if
the clothes dry at all). The dryer can overheat, again increasing
operational costs, repairs and high utility bills.
BRIEF DESCRIPTION OF DRAWINGS
[0003] FIG. 1 illustrates a front view of an exemplary bird-proof
vent cover apparatus in accordance with an embodiment of the
present invention.
[0004] FIG. 2 illustrates a perspective view of an exemplary
bird-proof vent cover apparatus in accordance with an embodiment of
the present invention.
[0005] FIG. 3 illustrates a rear view of an exemplary bird-proof
vent cover apparatus in accordance with an embodiment of the
present invention.
[0006] FIG. 4 illustrates a rear perspective view of an exemplary
bird-proof vent cover apparatus in accordance with an embodiment of
the present invention.
[0007] FIG. 5 illustrates an exemplary bird-proof vent cover
apparatus mounted on a vertical surface in accordance with an
embodiment of the present invention.
DETAILED DESCRIPTION
[0008] Provided herein is a bird proof exhaust vent apparatus. The
apparatus includes features to make it difficult, if not
impossible, for birds to enter the vent or build nests in the vent
or vent cover. The apparatus, in come embodiments, offers the
further advantage of being low maintenance, requiring little to
none in terms of cleaning and maintenance during its useful life
(decades).
[0009] In an example shown in FIGS. 1-5, an exemplary bird-proof,
maintenance-free cover is shown. In this example, the cover 10 is
designed to install easily over any existing residential exhaust
vent that is mounted on a vertical surface. For example, FIG. 5
shows the cover 10 mounted over an existing clothes dryer vent on
the vertical exterior surface of a residential home having vinyl
siding thereon. However, in another embodiment, the cover 10 can be
a complete vent solution, including a cover 10 having an integral
vent. In a preferred embodiment, the vent 100 includes a closeable
vent louver 110. In the most preferred embodiment, the vent 100
includes a hinged louver 110 for opening and closing the vent
opening, such as by positive air pressure created by an attached
appliance, such as a clothes dryer, exhaust fan, furnace, water
heater, oven, or fireplace, for example.
[0010] The cover 10 includes several key features that prevent
birds from building nests, obstructing, entering, or otherwise
interfering with the vent 100 and vent louver 110, as well as the
vent opening (not illustrated). In the example of FIGS. 1-5, the
cover 10 includes a top portion 20 that is shaped and otherwise
configured so as to prevent birds from sitting on the top portion
20, and also to prevent the construction of nests on the top
portion 20 of the cover 10. In the example of FIGS. 1-5, the top
portion 20 specifically comprises a sloped portion, as illustrated.
In any case, when installed, the top portion 20 lacks any
appreciable surface portion that would be oriented horizontally
upon installation of the cover 10. Preferably, the top portion 20
includes a surface or coating that provides low-friction. For
example, the top portion 20 can include an outer surface portion
that is coated with smooth, hard coating such as, but not limited
to, paint, metal, PTFE (such as TEFLON brand PTFE by DuPont), and
the like.
[0011] As shown in FIG. 1-5, the cover 10 also preferably includes
an elongate sidewall portion 40. The sidewall portion 40 extends
vertically downward from the top portion 20, and forms and connects
a vent opening 70 of the vent cover 10 to an end opening 50 of the
cover 10. In other words, the sidewalk portion 40 forms an elongate
vertically-orientated conduit from outlet opening 50 to rear
opening 70, allowing air from the vent 100 to escape through the
cover 10, with most of the air preferably exiting outlet opening
50. The sidewall portion 40 is illustrated as substantially
rectangular, however, it may be made into any elongate shape and
cross section. The critical feature of sidewall portion 40 is that
it extends vertically downward from vent 100 and top portion 20 far
enough to prevent birds from passing through outlet opening 50 and
reaching the vent 100 or louver 110. The inventive concept
incorporated in this feature is that birds cannot fly vertically
upward in confined vertical spaces. Therefore, the cross-sectional
dimension of elongate portion of sidewall 40 should be less than a
target bird's wing span. For example, for sparrows, the maximum
inner diameter of sidewall portion 40 should be less than about 7
inches. However, even if a greater inner diameter is provided, the
vertical length of sidewall portion is designed and sized, and
optionally shaped (such as in a converging portion of a sidewall
portion 40) to prevent vertical flying, such as to prevent a bird
from entering opening 50 by reaching rear opening 70. Preferably,
the vertical length of sidewall portion spans at least 8 inches
from the bottom of opening 70 to the end of sidewall portion 40 at
outlet opening 50. More preferably, that length is more than 10
inches. More preferably, that length is more than 12 inches.
[0012] Optionally, the sidewall portion 40 of cover 10 further
includes a permeable sidewall portion 30 that is permeable to air
flow. The permeable sidewall portion 30 in the illustrated examples
is a screen, such as a metal wire mesh screen having square
openings of about 0.5 to 1.0 inch. However, the permeable sidewall
portion 30 can be of any material, such as metal, plastic, or other
screen material compatible with exposure to the exhaust air and
with environmental elements such as sun, rain, snow, wind, for
example. Optionally, in the preferred embodiments, the permeable
sidewall portion 30
[0013] includes a screen of significant opening sizes as to allow
for ready exhaust air flow, while also permitting visual monitoring
of the vent 100 and vent louver 110 function by a user from the
ground under cover 10.
[0014] In the example illustrated in FIGS. 1-5, the square wire
mesh of permeable portion 30, and the elongate vertical sidewall
portion 40 together function to keep birds out, since birds can not
fly vertical with their wings closed. The open bottom design of
outlet opening 50 further allows for any lint to drop out so the
vent 100 and louver 110 will not clog. The top portion 20 of the
vent cover is angled so birds can not build nests on top of it. A
further advantage is that the exemplary cover 10 illustrated will
not collect lint, but also will not prevent a vent 100 from
catching lint if the vent 100 design is made to catch lint.
[0015] Lastly, the cover 10 is adaptable to installation over
existing, previously installed vents 100. As shown in FIGS. 1-5,
the cover 10 includes one or more mounting portions 60 that can be
attached to a building 200 by any known fastener system.
[0016] While the inventive concepts herein are illustrated in one
embodiment, other embodiments are conceived and adequately
described and enabled herein so as to entitle the inventor to a
claim scope broader than the embodiment illustrated. Nothing herein
is intended to narrow that scope.
* * * * *