Fishing – trapping – and vermin destroying – Vermin destroying – Insect
Patent
1989-06-30
1991-10-01
Rowan, Kurt
Fishing, trapping, and vermin destroying
Vermin destroying
Insect
A01M 502
Patent
active
050521470
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to methods and apparatus for collecting dirt and other solid matter, in general, and insects in particular.
2. Introduction to the Invention
Vacuum cleaners and other forms of powered collection apparatus are well known. They may be powered by line voltage, or by rechargeable batteries, or by an internal combustion engine, and may be used for collecting dirt, insects and a wide variety of other solid and liquid objects and materials. In such apparatus the motor draws air through a collection opening which is placed near the material to be collected; the air then passes through a screen, filter or other receptor which retains the solid material entrained in the air; and finally the cleaned air is exhausted. The receptor can be of the disposable type, in which case it can be removed and thrown away with the solid material retained in it or on it, or the receptor can be of the re-usable type, in which case it can be removed, cleaned and replaced. Reference may be made for example to U.S. Pat. Nos. 4,573,235, 4,451,951, 4,449,319, 4,290,165, 4,209,875, 4,175,352, 4,074,458, 4,011,624, 3,683,446, 3,619,851, 3,599,213, 3,513,500, 3,238,556, 3,477,087, 3,196,577, 3,214,861, 2,340,944, 1,517,131, 1,313,203 and 1,029,972, the entire disclosures of which are incorporated herein by reference.
SUMMARY OF THE INVENTION
The need to use a disposable receptor, or alternatively to clean a reuseable receptor, is a serious disadvantage. Most people dislike handling such a receptor, particularly a reusable receptor that must be removed, cleaned and replaced; and many find it difficult even to contemplate the handling of a receptor containing insects which may still be alive. Even when the collected material is less offensive, there is hardly anyone who would not prefer to leave the task of cleaning the receptor to someone else.
The present invention provides a solution to this problem. We have realized that if a screen or other receptor can be moved rapidly from a first position which is appropriate for collection to a second position which is appropriate for disposal, and can be brought to an abrupt stop in the second position, this will dislodge any insects etc. retained on the receptor. The receptor, when it is in the first position, is preferably within a housing having a collection opening through which air is drawn, thus entraining the insects which are to be collected. When the receptor is in the second position, it can be wholly or partially within the housing, preferably close to the collection opening, so that the insects are ejected through the collection opening; alternatively the receptor can be wholly outside the housing, but preferably still connected to the housing by a rigid or flexible member. As a result, the receptor will rarely, if ever, need to be cleaned. In this way, the user can collect an insect at one location (e.g. inside a house) and can then move to a different location to eject the insect (e.g. outside the house). In a modification of this principle, the receptor is removably mounted on a carriage which moves within the housing and is brought to an abrupt stop in the second position, thus dislodging the receptor, with the insect(s) retained thereon.
We have also realized that if a user can choose whether air is sucked into the opening of the collection apparatus or is blown out of it, then this too will enable an insect to be collected at one location and disposed of at another location. This expedient can be used without the movable receptor, but is preferably used in conjunction with the movable receptor.
The invention can for example be embodied in an attachment for a conventional hand-held electrical vacuum cleaner (the attachment (a) being used in place of the conventional nozzle and collection unit or (b) being attached to the conventional nozzle of the vacuum cleaner). Alternatively, the invention can be embodied in an apparatus having its own power unit.
In one aspect the present invention provides an attach
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Broomfield Douglas W.
Broomfield Jack M.
Richardson Timothy H. P.
Rowan Kurt
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