AU2021103560A4 - Ventilation Method for Vegetable Plastic Film Greenhouse and Vent - Google Patents
Ventilation Method for Vegetable Plastic Film Greenhouse and Vent Download PDFInfo
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- AU2021103560A4 AU2021103560A4 AU2021103560A AU2021103560A AU2021103560A4 AU 2021103560 A4 AU2021103560 A4 AU 2021103560A4 AU 2021103560 A AU2021103560 A AU 2021103560A AU 2021103560 A AU2021103560 A AU 2021103560A AU 2021103560 A4 AU2021103560 A4 AU 2021103560A4
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- vent
- greenhouse
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- film
- strips
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
- A01G9/242—Arrangement of opening or closing systems for windows and ventilation panels for greenhouses with flexible coverings
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Soil Sciences (AREA)
- Greenhouses (AREA)
Abstract
A ventilation method for a vegetable plastic film greenhouse and a vent are
provided. The ventilation method comprises making side vents at the two sides of a
greenhouse, wherein the side vents are made as follows: determining the positions of
the side vents on the films at the two sides, applying a cover film on an upper side of
the side vents by an electric heating apparatus, then putting a transparent wide
adhesive tape respectively on a top end and a bottom end of a pre-opened side vent,
making an opening, by a blade, on the film from the top end of the side vent downwards
to the bottom end thereof to form a plurality of strips, and alternately bundling the strips
spaced apart from each other by a bundling rope to form a cross type side vent; and
the front vent and the upper vent are made in basically the same manner. For a
ventilation purpose, the cover film on each vent is rolled up and fixed with a tension
rope to expose the vent. When ventilation is not needed or it rains, the cover film is
put down, and then the edge of the cover film is closely attached to the greenhouse
film, so as to achieve the purpose of sealing and heat preservation.
1/3
FIGURES OF THE SPECIFICATION
Step 1
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Step2
D
FIG.I1
Description
1/3
Step 1
m 2Z345 7 'I
Step2
FIG.I1
Ventilation Method for Vegetable Plastic Film Greenhouse and Vent
The present invention relate to a ventilation method for a vegetable
plastic film greenhouse, which is mainly applied to the design and ventilation
of a front vent and an upper vent of a solar greenhouse and the design and
ventilation of vents at the two sides of a large arch greenhouse.
The ventilation method used in many vegetable greenhouses is to cover
the greenhouse with two or three films, and enable the adjacent parts of the
films to be overlapped. For a ventilation purpose, the overlapping parts are
usually set aside. When ventilation is not needed, the films are overlapped
again. The greenhouse body is covered with two or three films that are often
opened and overlapped; as a result, the thin films wrinkle and cannot be
flattened, and water drops are easily formed on the thin films, which affects
the light transmission of the greenhouse. Moreover, the incomplete sealing of
the greenhouse film not only affects the heat preservation effect, but also
causes the greenhouse film to be torn in a gale, causing damage to the
greenhouse film.
To open and close the vents of a solar greenhouse and a large arch
greenhouse in a more reasonable way, enhance the wind resistance of a
greenhouse film, and avoid the effect on the light transmittance of the
greenhouse film due to the folds of the greenhouse film, based on a cost
effective principle, we invented a method which is simple and easy to operate
and can directly open the vents on greenhouse film.
Aiming at the shortcomings of the current design of greenhouse vents,
the present invention provides a method for making a vent with simple
structure and reasonable design, and the method is mainly applied to the
design of vents in large arch greenhouses and solar greenhouses.
A technical solution adopted by the method for solving the technical
problems is as follows:
a ventilation method for a vegetable plastic film greenhouse, wherein an
upper vent, a front vent and a side vent are respectively arranged at the top,
the front side and the two sides of a greenhouse,
provision of the side vent: determining the positions of the side vents on
the films at the two sides, applying a cover film with a width of 1.2 m and a
length consistent with that of an arch greenhouse on an upper side of the side
vents by an electric heating apparatus (electric iron), putting a transparent
wide adhesive tape respectively on a top end and a bottom end of a pre
opened side vent to keep the side vents on a horizontal line, making an
opening, by a blade, on the film from the top end of the side vent downwards
to the bottom end thereof to form a plurality of strips with a width of 12 cm-13
cm and a length of 80-100 cm and longitudinally parallel to each other, and
alternately bundling the strips spaced apart from each other by a bundling
rope to form a cross type side vent;
provision of the front vent: after locating the top of the front vent on a
greenhouse film, applying a cover film with a width of 0.7 m-1.2 m and a
length consistent with that of the greenhouse film on an upper end of the front
vent by the electric heating apparatus (electric iron), putting a transparent wide adhesive tape respectively on a top end and a bottom end of a pre opened front vent to determine the top and bottom ends of the vent, then making an opening, by a blade, on the greenhouse film from the top end of the front vent downwards to the bottom end thereof to form a plurality of strips with a width of 12 cm-13 cm and a length of 90 cm-100 cm and longitudinally parallel to each other, and bundling the strips alternately by a bundling rope to form a front vent through a gap between the strips; provision of the upper vent: at 20 cm-30 cm south of the highest point of the greenhouse (at the ridge), applying a cover film with a width of 0.7 m-1.2 m and a length consistent with that of the greenhouse film on an upper end of the greenhouse film by the electric heating apparatus (electric iron), putting a transparent wide adhesive tape respectively on a top end and a bottom end of a pre-opened upper vent to determine the top and bottom ends of the vent, then making an opening, by a blade, on the greenhouse film from the top end of the upper vent downwards to the bottom end thereof to form a plurality of strips with a width of 10 cm and a length of 0.5 m and longitudinally parallel to each other, and bundling the strips alternately by a bundling rope to form an upper vent through a gap between the strips; for a ventilation purpose, the cover film on each vent is rolled up and fixed with a tension rope to expose the vent; when ventilation is not needed or it rains, the cover film is put down, and then the edge of the cover film is closely attached to the greenhouse film, so as to achieve the purpose of sealing and heat preservation.
Further, each greenhouse below a vent shall be internally provided with
an insect-proof screen with a width of about 1.5 m and covering the vent to
prevent pests from entering the greenhouse.
Specifically, the provision of the upper vent includes the following steps:
step 1: determining the top and bottom of the upper vent with a transparent
adhesive tape, then drawing, by a scale and a black marker, an interval of
strips on the transparent adhesive tape, and dividing, by a knife, the
greenhouse film into parallel strips from bottom to top; and step 2: dividing
every four strips into one group, a total of N groups, where N is a natural
number greater than or equal to 1; and bundling a first strip and a third strip, a
second strip and a fourth strip respectively in each group.
Specifically, the provision of the front vent or the side vent includes the
following steps: step 1: determining the top and bottom of the front vent or the
side vent with a transparent adhesive tape, then drawing, by a scale and a
black marker, an interval of strips on the transparent adhesive tape, and
dividing, by a knife, the greenhouse film into a plurality of parallel strips from
bottom to top;
step 2: dividing every six strips into one group, a total of N groups, where
N is a natural number greater than or equal to 1, and bundling a first strip and
a fourth strip, a second strip and a fifth strip, a third strip and a sixth strip
respectively in each group, so as to form a frame of a vent; and
step 3: besides, bundling the upper and lower intersections of the second
strip and the fourth strip in each group, and bundling the upper and lower
intersections of the third strip and the fifth strip, wherein the gaps formed between the intersections of various strips are vents. Such a bundling method may increase the ventilation area of the vent.
Further, the electric heating apparatus is an electric iron.
A vent for a vegetable plastic film greenhouse includes a large
greenhouse frame, a greenhouse film and a tension rope, wherein the
greenhouse film is provided with adhesive tapes parallel to each other at the
top and bottom and bonded to the upper surface of the greenhouse film, the
greenhouse film between two adhesive tapes is provided with a number of
strips along the longitudinal direction from bottom to top, and a vent formed by
interlacing the strips, and a cover film capable of completely covering the vent
is fixed to the upper end of the vent by thermal welding.
Further, each greenhouse below a vent shall be internally provided with
an insect-proof screen a width of about 1.5 m and covering the vent to prevent
pests from entering the greenhouse.
Further, the bundling structure of the strips is as follows: dividing every
four strips into one group, a total of N groups, where N is a natural number
greater than or equal to 1, and bundling a first strip and a third strip, a second
strip and a fourth strip respectively in each group.
Further, the bundling structure of the strips is as follows: dividing every
six strips into one group, a total of N groups, where N is a natural number
greater than or equal to 1, and bundling a first strip and a fourth strip, a
second strip and a fifth strip, and a third strip and a sixth strip respectively in
each group; besides, bundling the upper and lower intersections of the
second strip and the fourth strip, as well as the upper and lower intersections of the third strip and the fifth strip, wherein the gaps formed between the intersections of various strips are vents.
The advantageous effects of the present invention are as follows:
this will not only prevent the greenhouse film from being damaged in bad
weather, but also provide a good ventilation effect.
The working principle of the ventilation method is the same as that of the
large arch greenhouse; that is, for a ventilation purpose, the cover film on
each vent is rolled up and fixed with a tension rope to expose the vent; when
ventilation is not needed or it rains, the cover film is put down, and then the
edge of the cover film is closely attached to the greenhouse film, so as to
achieve the purpose of sealing.
In contrast to the vents designed by the existing greenhouse ventilation
technology, the ventilation method has the characteristics of reasonable
design, simple structure, no power, self-adjustment, convenient use, long
service life of the greenhouse film, and the like.
In contrast to the current ventilation method, the greenhouse film is used
as a whole according to the method; in this way, the film is flat and not easy to
wrinkle, water is not easy to condense into droplets on the surface of the
greenhouse film, and the greenhouse film has good light transmittance and
heat preservation. In a gale, the cover film on the vent is put down and will not
be torn. In rainy days, the cover film on the vent is put down to prevent
rainwater from pouring into the greenhouse. Meanwhile, the manufacture cost
of the vent is reduced.
The method for making a vent will be further explained with reference to
the accompanying drawings.
FIG. 1 is a schematic diagram of the manufacturing process of the upper
vent.
FIG. 2 is a schematic diagram of the manufacturing process of two side
vents and front vents.
FIG. 3 is a schematic view of a vent.
In the figure, A: cover film; B: adhesive tape; C: strip; D: bundling rope; E:
vent; F: greenhouse film.
The methods for making various vents will be described in detail below
with reference to the accompanying drawings of the specification.
1. Design and ventilation of vents at the two sides of large arch
greenhouse and front vents of solar greenhouse
Before the greenhouse film is applied, firstly, the width of the greenhouse
film is determined according to an arch span. If the film is not wide enough,
several films may be made together by an electric iron, so that the whole
greenhouse film is made a whole; in this way, the greenhouse film is flat and
not easy to wrinkle, water is not easy to condense into water droplets on the
surface of the greenhouse film, and the greenhouse film has good light
transmittance and heat preservation. The vent is located on the greenhouse
film F, and then a 1.2 m wide vent cover film with the same length as the arch
greenhouse is applied to the upper end of the vent by an electric iron. The tension rope is pressed after applying the greenhouse film to make the greenhouse film flat.
A transparent wide adhesive tape is put on the top and bottom of the pre
opened vent to keep the vent on a horizontal line. A blade is used for making
an opening on the greenhouse film from the top end of the vent downwards to
the bottom end thereof to form a plurality of strips with a width of 12-13 cm
and a length of 80-100 cm and longitudinally parallel to each other, and the
strips are alternately bundled by a bundling rope to form a cross type vent.
For a ventilation purpose, the cover film A on the vent is rolled up and
fixed with a tension rope to expose the vent E. When ventilation is not needed
or it rains, the cover film is put down, and then the edge of the cover film is
closely attached to the greenhouse film, so as to achieve the purpose of
sealing and heat preservation. This will not only prevent the greenhouse film
from being damaged in bad weather, but also provide a good ventilation effect.
After the vent is opened, the position of the vent below the greenhouse
film shall be provided with an insect-proof screen with a width of about 1.5 m
to prevent pests from entering the greenhouse.
As shown in FIG. 2, the method for making a vent at two sides of the
large arch greenhouse and the front vents of the solar greenhouse is
completed in three steps:
step 1: firstly, determining the top and bottom of the vent with a
transparent adhesive tape B, then drawing, by a scale and a black marker, an
interval of strips on the transparent adhesive tape, and dividing, by a knife, the
greenhouse film into parallel strips C from bottom to top; step 2: dividing every six strips into one group, and bundling every two films with a bundling rope D; taking six films as an example, bundling a first strip and a fourth strip, a second strip and a fifth strip, a third strip and a sixth strip respectively with a bundling rope D, thus initially forming a frame of a vent.
To increase the ventilation area of the vent, step 3 is added.
step 3: bundling the upper and lower intersections of the second strip and
the fourth strip by a bundling rope D, and bundling the upper and lower
intersections of the third strip and the fifth strip, wherein the gaps formed
between the intersections of various strips are vents E.
This method is very simple and convenient to process and make a vent,
as shown in the drawing attached to the specification.
2. Design and ventilation of vents on solar greenhouse
The front vent and the upper vent of the solar greenhouse are designed
in a similar way to the method for making a vent at the two sides of the large
arch greenhouse mentioned above.
Before the greenhouse film is applied, firstly, the width of the greenhouse
film is determined according to the span of the solar greenhouse. If the film is
not wide enough, several films may be made together by an electric iron, so
that the whole greenhouse film is made a whole. It is required to determine
the top positions of the upper vent and the front vent on the greenhouse film
(the upper vent is generally provided 20-30 cm south of the highest point of
the greenhouse (at the ridge), and the lower vent is generally provided for
ventilation operation). The cover films with a width of 0.7 m and 1.2 m and a
length consistent with that of the greenhouse film are applied to the upper ends of the upper vent and the front vent respectively by the electric iron. The tension rope is pressed after applying the greenhouse film to make the greenhouse film flat.
Design of front vent on greenhouse: The method for making a front vent
is the same as that of large arch greenhouse; that is, putting on a transparent
wide adhesive tape at the position of making a vent, determining the top and
bottom of the vent, making an opening, by a blade, on the greenhouse film
from the top of the front vent downward to the bottom thereof to form strips
longitudinally parallel to each other and with a width of 12-13 cm and a length
of 90-100 cm, and bundling the strips alternately by a bundling rope, wherein
the gaps between the strips are the vents.
Design of upper vent on greenhouse: determining the width of a vent at
the top of the greenhouse, making strips longitudinally parallel to each other
and with a width of 10 cm and a length of about 0.5 m from bottom to top, and
bundling the strips alternately by a bundling rope, wherein the gaps between
the strips are the vents.
The front and upper vents of solar greenhouse shall be provided with
insect-proof screens to prevent pests from entering the greenhouse.
For the vents on the solar greenhouse are located on the roof, a separate
air inlet and outlet may be made without the cooperation of other vents. The
solar greenhouse should be insulated at night in winter, and protected from
rain in summer. The upper vent should not be open too much, and the width
of the vent is half that of the front vent, which can achieve the purpose of
effective ventilation. For this reason, the methods for making an upper vent and a front vent of the solar greenhouse are different due to the different lengths of vent strips.
Method for making vents on solar greenhouse
As shown in FIG. 1, the upper vent is made in two steps:
step 1: determining the top and bottom of the vent with a transparent
adhesive tape B, then drawing, a scale and a black marker, an interval of
strips on the transparent adhesive tape, and averagely dividing, by a knife, the
greenhouse film into parallel strips C from bottom to top, as shown in FIG. 2;
step 2: bundling every four films with a bundling rope D, that is, bundling
a first strip and a third strip, a second strip and a fourth strip, a fifth strip and a
seventh strip, a sixth strip and an eighth strip to form a cross type vent E as
shown in FIG. 2.
The preferred embodiments described herein are only for illustration
purpose, and are not intended to limit the present invention. Various
modifications and improvements on the present invention made by those of
ordinary skill in the art without departing from the design spirit of the present
invention shall fall within the scope of protection as claimed in claims of the
present invention.
Claims (9)
1. A ventilation method for a vegetable plastic film greenhouse,
characterized in that an upper vent, a front vent and a side vent are
respectively arranged at the top, the front side and the two sides of a
greenhouse,
provision of the side vent: determining the positions of the side vents at
the films at the two sides, applying a cover film with a width of 1.2 m and a
length consistent with that of an arch greenhouse on an upper side of the side
vents by an electric heating apparatus, putting a transparent wide adhesive
tape respectively on a top end and a bottom end of a pre-opened side vent,
making an opening, by a blade, on the film from the top end of the side vent
downwards to the bottom end thereof to form a plurality of strips with a width
of 12 cm-13 cm and a length of 80-100 cm and longitudinally parallel to each
other, and alternately bundling the strips spaced apart from each other by a
bundling rope to form a cross type side vent;
provision of the front vent: after locating the top of the front vent on a
greenhouse film, applying a cover film with a width of 0.7 m-1.2 m and a
length consistent with that of the greenhouse film on an upper end of the front
vent by the electric heating apparatus, putting a transparent wide adhesive
tape respectively on a top end and a bottom end of a pre-opened front vent to
determine the top and bottom ends of the vent, then making an opening, by a
blade, on the greenhouse film from the top end of the front vent downwards to
the bottom end thereof to form a plurality of strips with a width of 12 cm-13
cm and a length of 90 cm-100 cm and longitudinally parallel to each other,
and bundling the strips alternately by a bundling rope to form a front vent; provision of the upper vent: at 20 cm-30 cm south of the highest point of the greenhouse, applying a cover film with a width of 0.7 m-1.2 m and a length consistent with that of the greenhouse film on an upper end of the greenhouse film by the electric heating apparatus, putting a transparent wide adhesive tape respectively on a top end and a bottom end of a pre-opened upper vent to determine the top and bottom ends of the vent, then making an opening, by a blade, on the greenhouse film from the top end of the upper vent downwards to the bottom end thereof to form a plurality of strips with a width of 10 cm and a length of 0.5 m and longitudinally parallel to each other, and bundling the strips alternately by a bundling rope to form an upper vent; for a ventilation purpose, the cover film on each vent is rolled up and fixed with a tension rope to expose the vent; when ventilation is not needed or it rains, the cover film is put down, and then the edge of the cover film is closely attached to the greenhouse film.
2. The ventilation method for a vegetable plastic film greenhouse
according to claim 1, characterized in that each greenhouse below a vent
shall be internally provided with an insect-proof screen covering the vent.
3. The ventilation method for a vegetable plastic film greenhouse
according to claim 1, characterized in that the provision of the upper vent
comprises the following steps: step 1: determining the top and bottom of the
upper vent with a transparent adhesive tape, then drawing, by a scale and a
black marker, an interval of strips on the transparent adhesive tape, and
dividing, by a knife, the greenhouse film into parallel strips from bottom to top;
and step 2: dividing every four strips into one group, a total of N groups,
where N is a natural number greater than or equal to 1, and bundling a first strip and a third strip, a second strip and a fourth strip respectively in each group.
4. The ventilation method for a vegetable plastic film greenhouse
according to claim 1, characterized in that the provision of the front vent or the
side vent comprises the following steps: step 1: determining the top and
bottom of the front vent or the side vent with a transparent adhesive tape,
then drawing, by a scale and a black marker, an interval of strips on the
transparent adhesive tape, and dividing, by a knife, the greenhouse film into a
plurality of parallel strips from bottom to top;
step 2: dividing every six strips into one group, a total of N groups, where
N is a natural number greater than or equal to 1, and bundling a first strip and
a fourth strip, a second strip and a fifth strip, a third strip and a sixth strip
respectively in each group, so as to form a frame of a vent; and
step 3: besides, bundling the upper and lower intersections of the second
strip and the fourth strip in each group, and bundling the upper and lower
intersections of the third strip and the fifth strip, wherein the gaps formed
between the intersections of various strips are vents.
5. The ventilation method for a vegetable plastic film greenhouse
according to claim 1, characterized in that the electric heating apparatus is an
electric iron.
6. A vent of a vegetable plastic film greenhouse, comprising a large
greenhouse frame, a greenhouse film and a tension rope, and characterized
in that the greenhouse film is provided with adhesive tapes parallel to each
other at the top and bottom and bonded to the upper surface of the
greenhouse film, the greenhouse film between two adhesive tapes is provided with a number of strips along the longitudinal direction from bottom to top, and a vent formed by interlacing the strips, and a cover film capable of completely covering the vent is fixed to the upper end of the vent by thermal welding.
7. The vent of a vegetable plastic film greenhouse according to claim 6,
characterized in that the greenhouse below the vent is provided with an
insect-proof screen covering the vent.
8. The vent of a vegetable plastic film greenhouse according to claim 6,
characterized in that the bundling structure of the strips is as follows: dividing
every four strips into one group, a total of N groups, where N is a natural
number greater than or equal to 1, and bundling a first strip and a third strip, a
second strip and a fourth strip respectively in each group.
9. The vent of a vegetable plastic film greenhouse according to claim 6,
characterized in that the bundling structure of the strips is as follows: dividing
every six strips into one group, a total of N groups, where N is a natural
number greater than or equal to 1, and bundling a first strip and a fourth strip,
a second strip and a fifth strip, a third strip and a sixth strip respectively in
each group; besides, bundling the upper and lower intersections of the
second strip and the fourth strip, as well as the upper and lower intersections
of the third strip and the fifth strip, wherein the gaps formed between the
intersections of various strips are vents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021103560A AU2021103560A4 (en) | 2021-06-23 | 2021-06-23 | Ventilation Method for Vegetable Plastic Film Greenhouse and Vent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021103560A AU2021103560A4 (en) | 2021-06-23 | 2021-06-23 | Ventilation Method for Vegetable Plastic Film Greenhouse and Vent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021103560A4 true AU2021103560A4 (en) | 2021-08-26 |
Family
ID=77369595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021103560A Active AU2021103560A4 (en) | 2021-06-23 | 2021-06-23 | Ventilation Method for Vegetable Plastic Film Greenhouse and Vent |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021103560A4 (en) |
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2021
- 2021-06-23 AU AU2021103560A patent/AU2021103560A4/en active Active
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