NZ749968A - A trap and a method for using a trap - Google Patents
A trap and a method for using a trapInfo
- Publication number
- NZ749968A NZ749968A NZ749968A NZ74996817A NZ749968A NZ 749968 A NZ749968 A NZ 749968A NZ 749968 A NZ749968 A NZ 749968A NZ 74996817 A NZ74996817 A NZ 74996817A NZ 749968 A NZ749968 A NZ 749968A
- Authority
- NZ
- New Zealand
- Prior art keywords
- trap
- rat
- sewer
- trapper
- killer
- Prior art date
Links
- 241000700159 Rattus Species 0.000 claims abstract description 103
- 230000002147 killing Effects 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims description 5
- 230000003213 activating Effects 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 4
- 241001465754 Metazoa Species 0.000 claims 1
- 241000607479 Yersinia pestis Species 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 210000000078 Claw Anatomy 0.000 description 1
- 206010014405 Electrocution Diseases 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Abstract
trap for exterminating pests, preferably rats in sewers, said trap comprising: a trap housing and a bait mechanism. The trap also has a trigger mechanism capable of detecting the presence of a rat and releasing a killer mechanism when the rat is within the total range of the killer mechanism; and a trapper mechanism capable of detaining an animal. The trap may also convey a killed animal from a first position, in which discharge of the killed animal will not entail that it is conveyed away by water running through the sewer, to a second position, in which discharge of the killed rat will entail that it is conveyed away by water running through the sewer. a trapper mechanism capable of detaining an animal. The trap may also convey a killed animal from a first position, in which discharge of the killed animal will not entail that it is conveyed away by water running through the sewer, to a second position, in which discharge of the killed rat will entail that it is conveyed away by water running through the sewer.
Description
A trap and a method for using a trap
The invention relates to a trap as set forth in claim 1.
Today, rat traps for being deployed in a sewer are typically of the type that
either kills rats by means of a clap mechanism or with a ism capable
of killing by means of eg a device that is capable of advancing one or more
spikes. Most often, those traps are arranged in association with a sewer pipe,
and they kill the rats within the sewer pipe as such that they are arranged to
1O be in association with.
If the trap is provided with a mechanism capable of automatically withdrawing
the spikes, the trap is capable of continuously killing rats in a sewer pipe, the
killed rats being washed away by the water in the sewer pipe.
The drawback of this known type of traps is that it is a prerequisite for several
successive killings (continuous operation) that the killings must take place in
association with the water—carrying part of the sewer pipe.
This is not a m in the type of sewer pipes where the sewer pipe as
such has a size/dimension enabling that the rate is unable to pass by the trap
in the pipe without coming into contact with the trap’s killing mechanism.
However, those conditions are, by far, not always complied with, and
consequently traps of that type have a severe limitation of use, the trap not
being suitable for killing rats continuously in those areas of a sewer that are
not d by water.
In small sewers (wells/pipes) where the sewer pipe has a er of
n 10 and 100 cm, those traps can be used — as mentioned above, and
usually they are configured with a holder part inserted into the sewer pipe as
such. When that type of trap is used, the rats are forced into the trap when
W0 2018;001431 2017/050216
they run through the sewer pipe since the trap partakes, with its holder part,
as a completely natural extension/part of the sewer part. Therefore, those
traps need not be provided with bait. Moreover, the trap also performs the
killing as such in an area of the sewer where discharge of the killed rat entails
that it is washed away by water, and this presents n advantages.
As it is, by making such traps self-emptying and reactivating, they can be
used to kill more rates since, following each killing, they merely
release/discharge the rat into the sewer pipe and reactivate the killer
1O mechanism.
Killed rats being thus washed away, there are no remains that warn other
rats in the sewer pipe about the ce of a trap. In practice this means
that those traps are very efficient and can be deployed for long periods of
time, and the amount of killings performed n servicing operations may
be considerable and is usually limited only by the traps energy supply which
is lly battery—based.
However, sewer pipes exist that have dimensions that are far bigger than the
sewer pipes in which the known traps for continuous operation are used
today, and quite a number of sewer pipes are even built to include walkways
for humans along the sides of the sewer pipes. In that type of sewer pipes of
larger type, use of the prior art traps that are configured for being inserted
into the sewer pipe as such is not an option, since, on the one hand, the
insertion part will no longer be able to retain the trap in the sewer pipe, and,
on the other, the rats will be able to bypass the trap.
Moreover, it is n_ot the usual behaviour of a rat to move in water—filled areas,
but rather it is to move around in dry areas. In those large sewer pipes with
walkways situated along the sides, traps that are arranged in water—filled
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areas will quite simply not serve their purpose since that is not where the rats
are, as they would rather use the walkways.
This means that the prior art traps for continuous operation do not work
optimally in this type of sewer pipes.
These drawbacks can be partially obviated by use of traps having a built-in
reservoir to which the killed rats are transferred. As it is, this type of trap can
be used in areas of the sewers where water does not flow, such as eg at
1O /near the above-mentioned walkways.
However, those reservoir-based traps have drawbacks, too, since they need
to be provided with a power-intensive monitoring mechanism that is capable
of notifying about emptying when the reservoir is nearly filled. All in all, this
means that such reservoir-traps need servicing more frequently than traps
that merely empty themselves.
It is an object of the invention to remedy those drawbacks.
This is accomplished in that the trap ns: a trap housing; a bait
ism; a trigger mechanism capable of detecting the ce of a rat
and releasing a killer mechanism when the rat is within the total range of the
killer ism; a trapper mechanism capable of detaining a rat; a
conveyor mechanism capable of transporting a killed rat from a first position,
in which discharge of the killed rat will not entail that it is conveyed away by
water running through the sewer, to a second position, in which discharge of
the killed rat will entail that it is conveyed away by water running through the
sewer; a programmable l unit connected to and adapted to: the trigger
mechanism, the killer mechanism, the trapper mechanism, and the discharge
mechanism to the effect that the control ism activates the trapper
mechanism such that it detains a rat when the latter is ed by the trigger
W0 01431 2017/050216
mechanism within the total range of the killer ism, said control unit
also activating the killer mechanism and the conveyor mechanism to the
effect that trapped and killed rats are conveyed from the first position to the
second position; a unit for activating the trap.
By providing the trap with a conveyor mechanism capable of transporting a
rat from a first position in which the rat is trapped to a second position in
which the rat can be discharged it is obtained both: that the trap can be
deployed and hence trap rats at/near those areas in sewers that are not
1O flushed by water, and that the trap is capable of continuously killing several
rats without there being a need for emptying a reservoir in the trap.
According to one embodiment the trap is characterised in that the trap
housing is configured cylindrically, and that the r mechanism of the
trap sits in an end portion of the trap housing. By such configuration of the
trap it is accomplished that the trap can be deployed with the trap mechanism
just above an area where rats move about, while aneously having the
trapper part as the lowermost point on the deployed trap. Since it is the
normal behaviour of the rat to approach unknown s from an end
portion, the rat will usually meet the trapper part first when it approaches the
trap, and this means more killings.
According to one embodiment of the trap, the trapper mechanism can
discharge the rat, irrespective of whether it is in the first position or in the
second position. By configuring the trap such that a rat can be discharged
both in the first on and in the second position, the trap can also be used
in areas where water also runs just below the area where the trap es
the rats.
According to one embodiment the trapper mechanism can discharge the rat
when it is the first position and in the second position. By adapting the trap
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such that it is capable of releasing a killed rat, whether or not it is located in
the same place as the place in which it was caught and killed, or whether it
has been moved to r position, the functionality has been improved
since the trap can thereby also be used and deployed in areas where water
flows.
According to one embodiment, the trapper ism may discharge the rat
when it is any position between the first position and the second position. By
adapting the trap such that it is e of ing a killed rat, whether it is
1O in the same place as the place in which it was caught and killed or whether it
has been moved partially to another position, the functionality has been
improved, since the trap can thereby also be adapted to and used in sewers
that vary in both size and configuration.
According to one embodiment of the trap, the conveyor mechanism of the
trap comprises a hinge mechanism about which the trap can pivot, said hinge
mechanism being adapted to be such that pivoting of the trap entails that a
trapped rat is moved from first position to second position. Configuration of
the trap with a hinge function is a simple way in which to accomplish that the
traps trapper mechanism can be moved across distances.
According to one embodiment of the trap, the traps conveyor mechanism
comprises a hinge mechanism deployed at that end portion of the trap
housing which is opposite the r ism. By arranging the hinge
te the trapper part optimal movability of the r part is obtained in
a very simple manner as it can be moved in a circular arch whose radius is
the length of the trap housing.
According to one embodiment of the trap, the conveyor mechanism
comprises a telescopic mechanism capable of advancing the trapper
mechanism such that it is moved from first position to second position. By
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use of a telescopic conveyor mechanism very precise delivery of the dead rat
into the water flowing through a sewer can be obtained.
ing to one embodiment of the trap, the conveyor mechanism
comprises an adjustable chute capable of transporting a dead rat as it slides
on the chute from one position to another position to the effect that it is
moved from first position to second position. By using a opic conveyor
mechanism it is possible to obtain a very precise delivery of the dead rat into
the waterflowing through a sewer.
According to one embodiment of the trap, the killer mechanism also serves
as trapper part.
An embodiment of the invention will now be ned with reference to the
figures, wherein:
Figure 1 is a schematic view of the trap deployed in the first position thereof;
Figure 2 is a tic view of the trap deployed in a sewer where the traps
trapper/killer mechanism is not released;
Figue 3 is a schematic view of the trap deployed in a sewer wherein the
traps conveyor mechanism has conveyed the dead rat to second position;
Figure 4 is a schematic view of the trap arranged in a sewer wherein the
traps killer/trapper mechanism has discharged a rat in second position;
Figure 5 shows an embodiment of the trap, wherein the pivoting ism
is ed with a telescopic mechanism.
In large sewer pipes, it may be associated with difficulties to secure a trap in
the sewer pipe as such, and moreover ms may arise if there are
ences between pipe dimension and trap dimension, since a trap having
a comparatively small dimension seen relative to the pipe may enable the
rats present in the pipes to simply bypass the trap. By the invention it is found
W0 2018;001431
that this problem can be solved by means of a trap configured with a
conveyor mechanism. Thereby the trap can be deployed in a position in
which it can/is to trap the rats, and by means of the transport ism it
can release/discharge the rats in an r position.
Typically, the killing itself will take place in approximately the same position
as the trapping, and usually it will happen in a “dry” area of the well. This
means an area where water is not running during normal operation of the
sewer. When the or mechanism is activated, the rat will be conveyed
1O from this “dry” area in the sewer to an area where the water runs in the sewer
during normal operation, following which the dead rat will be removed by the
water running in the sewer.
Figure 1 shows a trap for extermination of pest, preferably rats. The trap is
shown deployed in a sewer well (1). Sewer wells are usually configured with
round-going sidewall (10), and ly one or more sewer pipes traverse
such wells at the bottoms thereof. One such sewer pipe (3) will also appear
at the bottom of figure 1. The trap comprises a trap housing (4) containing ia
the necessary electronics, motors and power supply. To the person skilled in
the art it is obvious how to provide a trap with motors and power supply and
control, which is why those means are not shown in the figures, and they will
not be described in r detail. In the shown example, the trap housing (4)
is suspended on the wall of the well by means of a g (8,9) comprising a
g (7) to which the trap is secured. The trap housing is capable of
rotating about that bearing.
Moreover, the trap comprises a bait mechanism which is also not shown in
the figures. The bait mechanism will usually comprise a box containing a
ism capable of emitting a smell which is attractive to rats. In its
simplest form, the bait mechanism may be a passage in which rats may seek
shelter.
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Besides, the trap comprises a trigger mechanism (also not shown) capable of
detecting the presence of a rat and ing a killer mechanism when the rat
is within the total range of the killer mechanism. Typically, this trigger
mechanism is configured with an infrared sensor detecting the body heat
from a rat. In the figures, the killer mechanism is a c|aw (9) also functioning
as a /trapper mechanism.
As will appear from the figures, the “dry” area may be the bottom part of a
sewer well (1) on/along a sidewall (10), and, as it will also appear from
figures 1-5, the area in which the water (3) flows may be a sing pipe
deployed centrally at the bottom of the well. The use of the trap according to
the invention is, of course, not limited to this.
In figure 1, a trap (2) is shown deployed on and d to a sidewall in the
sewer. As can be gathered at reference numeral (6), the trap is provided with
a claw-like mechanism which is not released in figure 1. If we now proceed to
figure 2, it will , again at reference numeral (6), that the claw-like
mechanism is now ed and es around the rat (5). The release as
such of the claw (6) takes place by means of a trigger mechanism which is
typically based on infrared measurement of the body heat from an animal.
However, it is of course possible to use other kinds of trigger mechanisms.
Figure 3 shows a trap according to the invention, wherein the conveyor
mechanism is activated. In the shown example of figure 3, it is a g
mechanism capable of tilting the entire trap housing (4) about a hinge (7).
The degrees as such (the angle) to be/capable of being travelled by the trap
in order for it to move a detained animal to a position above the pipe (3) is, in
one version of the invention, programmed into the control of the trap whereby
the trap can be adapted to different sizes of sewer wells.
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Now, figure 4 shows that the squeezer/killer mechanism (6) is released and
has hence discharged the killed rat (5) y it has dropped down into the
pipe (3). Now the trap will automatically revert to the starting position (as
shown in figure 1) and activate/reactivate itself to enable killing of yet an
animal/a rat.
Figure 5 shows an embodiment of the trap wherein the pivoting ism
is combined with a telescopic mechanism. By ing the pivoting
mechanism with a telescopic mechanism it is obtained that the trap can be
1O used in sewer pipes in which it could otherwise not have been used. As it is,
sometimes traps need to be used in sewer wells having a dimension not
making it possible that a mere ng of the trap, as shown in figures 1-4,
can cause a killed rat to move beyond a lly arranged pipe (3). In the
example shown in figure 5, the trap is therefore also provided with a
telescopic mechanism sing two pipes (11 and 12) that can shifted
mutually, in and out of each other, and hence extend the trap (the trap
housing).
If the trap is provided with both a telescopic mechanism and a pivoting
mechanism, they may operate in dependence of, but also independently of,
each other, ie the isms can be combined, but need not be.
Claims and specification describe a trap for rats in sewers. The trap is not
limited to such use. Moreover, specification and claims use the terminology:
bait mechanism; trigger mechanism; killer mechanism; trapper mechanism;
conveyor mechanism, and activator mechanism.
By the term “bait mechanism” is intended any kind of mechanism capable of
containing a bait that can “lure” a rat into the trap. Typically such bait
mechanism will comprise a box in which a means emitting a smell which is
attractive to the rat can be arranged.
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By “trigger mechanism” is intended the mechanism that “triggers” the trap, ie
a mechanism that is activated by the rat as such. Typically the trigger
mechanism will comprise an infrared sensor which — when it detects body
heat from a rat (or some other animal) — activates one or more parts of the
trap. However, the trigger mechanism may also comprise other means, such
as eg an nce measurement device, sound-level meter, or a
or/tilting mechanism activing one or more of the traps other parts.
By the term “killer mechanism” is intended the mechanism that kills the rat,
and it will lly be of a mechanical or electrical nature, such as something
that squeezes the rat to death or kills by electrocution or a combination of
such means. However, the killer mechanism is not limited thereto; rather it
may in principle be everything that can kill a rat in the trap.
By the term “trapper mechanism” is intended a mechanism capable of
detaining a rat, and it may be tuted by a variety of means, such as a
clap mechanism as is known from the conventional rat/mouse traps.
r, it may also comprise means that shut in the rat by closing off a part
of the trap.
By the term “conveyor ism” is intended the ism that enables
capturing of the rat in one place and uently conveying it to another
place when it has been killed. Typically the distances which the rat is moved
are within the ranges of from 0 cm — 150 cm, 10 cm — 100 cm, or 25 cm —
150 cm. The specification describes in particular one conveyor mechanism,
and that conveyor mechanism conveys the trapper mechanism. This will be
the usual way in which to configure the trap, but the conveyor mechanism
may also be made such that it is an independent conveyor unit capable of
transporting a dead rat from one position to another position. Such conveyor
unit usually cooperates with the trapper mechanism in that the trapper
W0 2018;001431
mechanism delivers the dead rat to the conveyor mechanism; however, the
delivery as such between trapper mechanism or killer mechanism and
conveyor ism may also take place via an intermediary part delivering
the rat from trapper/killer ism to the adjustable conveyor mechanism.
The ial aspect here is that the distance from capturing to delivery is
adjustable and can be d to the surroundings thereby enabling use of
the trap in different contexts, including in particular different sewer sizes. The
type as such of er mechanism or killer mechanism is thus also not a
determining factor since a conveyor mechanism can be used with any kind of
1O trap; including but not limited to eg traps that kill by means of electricity.
Moreover, the trap is described as a rat trap, and the term ”rat” appears
frequently. Of course, this is not intended to constitute a limitation s
the trap being suitable for use for the killing of rats only. As it is, the trap can
readily be used to kill other rodents/pests, eg mice.
The phrase “activation” also appears in ia claims 1 and 9, and by that is
merely intended that the trap is activated. The claims do not set forth a
requisite sequence of the actions, meaning that such action can also be the
first one to be performed when the trap is to be used, eg the first time, in a
new place or following servicing operations. The phrase “activation” may also
mean that the trap is reactivated which will necessarily be the case in case
the trap has killed and s (self)activated again after that killing.
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Claims (11)
1 . A trap for exterminating animals causing damage, preferably rats in sewers, said trap comprising: a trap housing; a bait ism; a r mechanism capable of detecting the presence of a rat and releasing a killer mechanism when the rat is within the total range of 10 the killer ism; a trapper mechanism capable of detaining a rat; a conveyor mechanism capable of transporting a killed rat from a first position, in which discharge of the killed rat will not entail that it is conveyed away by water running h the sewer, to a second 15 on, in which discharge of the killed rat will entail that it is conveyed away by water g through the sewer; a programmable control unit connected to and adapted to: the trigger mechanism, the killer mechanism, the trapper mechanism, and the discharge mechanism to the effect that the control mechanism 20 activates the r mechanism such that it detains a rat when the latter is detected by the trigger mechanism within the total range of the killer mechanism, said control unit also activating the killer mechanism and the conveyor mechanism to the effect that trapped and killed rats are conveyed from the first position to the second position; 25 a unit for activating the trap.
2. A trap according to claim 1, characterised in that the trap housing is configured cylindrically, and that the trapper mechanism of the trap sits in an end portion of the trap housing. W0 2018;001431
3. A trap according to claims 1-2, characterised in that the trapper mechanism can discharge the rat when it is in the first position and in the second position.
4. A trap according to claims 1—3, characterised in that the r mechanism can discharge the rat when it is any position between the first position and the second position.
5. A trap according to claims 1-4, characterised in that the conveyor 1O mechanism of the trap comprises a hinge mechanism around which the trap can pivot, said hinge mechanism being d to be such that pivoting of the trap entails that a trapped rat is moved from first position to second position. 15
6. A trap according to claims 2—5, characterised in that, the traps conveyor mechanism comprises a hinge mechanism deployed at that end portion of the trap housing which is opposite the trapper mechanism.
7. A trap according to claims 1-4, characterised in that the conveyor 20 mechanism comprises a telescopic mechanism capable of advancing the trapper ism such that it is moved from first position to second
8. A trap according to claims 1-3, characterised in that the conveyor 25 mechanism comprises a hinge mechanism and a ope mechanism, and that they cooperate to move the trapper mechanism such that it is moved from first position to second position.
9. A trap according to claims 1-8, characterised in that the transport 30 mechanism comprises a hinge mechanism and a opic ism that are capable of moving the trapper mechanism independently of each other. W0 2018;001431
10. A trap according to claims 1-9, terised in that the killer mechanism also serves as trapper part.
11. A method for exterminating sewer rats by means of a trap according to claims 1-10, said method comprising the following actions and measures: deployment of the trap in a first area of a sewer where the water does not have its l course through the sewer; adjustment of conveyor mechanism such that it is capable of 1O conveying a rat from a first area of the sewer without water to another area of the sewer, said second area of the sewer being located such that discharge of a rat means that the rat is discharged in a part of a sewer pipe through which water flows and is hence flushed away by the water; 15 tion of the trap, whereby the killer mechanism, r mechanism, holder mechanism, and conveyor mechanism are activated whereby the trap is able to detect, kill and detain a rat in the first area of the sewer; activation of the bait mechanism; 20 killing and detention of the rat; movement of the rat from first area to second area; discharge of the rat in the second area of the sewer; activation of the trap. WO 01431
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201670467 | 2016-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ749968A true NZ749968A (en) |
Family
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