Fishing – trapping – and vermin destroying – Decoys
Patent
1997-12-15
1999-09-28
Swiatek, Robert P.
Fishing, trapping, and vermin destroying
Decoys
116 22A, 446 30, A01M 2902, G08B 1500, A63H 1320
Patent
active
059568801
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an apparatus for preventing doves and crows and the like from accessing to buildings such as an aeroplane hangar or a large warehouse to preclude damage incurred by these kinds of birds.
BACKGROUND ART
Doves, crows and other birds incur damages by their droppings. Dropping damages sometimes pose a serious trouble. In a huge building such as an aeroplane hangar, a large-scale warehouse, or a big plant, its entrance and exit have to be left open because of frequent incoming and outgoing operations of planes and transport vehicles. A bird easily enters it. Birds having a nest in the building have generally a strong attachment to it, and doves are particularly notorious for it. Even if they are frightened away, they will definitely come back again and there was no effective solution to it.
Natural enemy relationships are established among birds. For example, birds of prey such as eagles, hawks and falcons are thought of as the natural enemies of doves and crows. When the dove and crow recognize the presence of such a natural enemy nearby, they immediately fly away. If the dove and crow encounter the enemy repeatedly, they will never access the same location.
DISCLOSURE OF INVENTION
It is an object of the present invention to provide a environment, which doves and crows are unlikely to access, by taking advantage of the their natural enemy principle.
The present invention scares birds into flying away by flying a flying object having a predatory-bird-like figure. The flying object may provided with a light emission unit, an ultrasonic sound transmitter, and a sound generator, alone or in combination to increase the scaring effect of the flying object against the birds.
Flying means for the flying object comprises a suspension wire for suspending the flying object to a support, a motor, mounted on the support, for making the flying object fly around the support in a circular trajectory, a reel around which the suspension wire is wound, wherein the motor and the reel are separately controlled by control means to impart a diversity to the trajectory of the flying object.
Another flying means permits the flying object to move along a guide rail formed in a desired configuration. More specifically, the flying object is attached to a self-propelled unit running along the guide rail, or is tied to a driving cable installed within the guide rail. In the arrangement where the guide rail is used, a trolley wire may be extended in parallel with the guide rail, and power is supplied via a current collector kept in sliding contact with the trolley wire to a diversity of units including a light emission unit mounted on the self-propelled unit or the flying object.
The control means for flying the flying object around or the power supply for the trolley wire may be automatically switched on and off by using a timer or a light sensor so that the apparatus is activated in synchronization with the activity pattern of the birds.
A sensor for detecting an incoming bird may be used to activate the movement of the flying object. With this arrangement, the apparatus operates in a power saving manner.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a perspective view showing an example of a flying object used in the present invention;
FIG. 2 is a perspective view of the circular flying motion of the flying object according t first embodiment of the present invention;
FIG. 3 is a perspective view of the circular flying motion of the flying object according to a second embodiment of the present invention;
FIG. 4 is a perspective view of the circular flying motion of the flying object according to a third embodiment of the present invention;
FIG. 5 is a plan view showing the arrangement in which the flying object is moved along a rail;
FIG. 6 is a partially cross-sectional view showing a first embodiment in which the flying object is moved along the rail;
FIG. 7 is a partially cross-sectional view showing a second embodiment in which the flying object is moved along the rail; and
FIG. 8
REFERENCES:
patent: D384598 (1997-10-01), Park
patent: 3136544 (1964-06-01), Strayer
patent: 3325940 (1967-06-01), Davis
patent: 4037358 (1977-07-01), Rosenbaum
patent: 4363181 (1982-12-01), Hyman et al.
patent: 4598660 (1986-07-01), Konzak
patent: 4817937 (1989-04-01), Ozeki
patent: 5602523 (1997-02-01), Turchioe
Bird Stopper Co., Ltd.
Shaw Elizabeth
Swiatek Robert P.
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