Harvesters – Miscellaneous
Patent
1992-08-14
1994-04-26
Bagnell, David J.
Harvesters
Miscellaneous
47 101, 1262711, A01M 2104
Patent
active
053055845
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
The invention relates to an implement for mowing lawns, cutting and detaching moss and weeds and comminution of mown and cut materials of the most various types.
BACKGROUND OF THE INVENTION
Known propelled lawn mowers have respectively an internal combustion or electric motor for driving the cutting arrangement, which drives at least one rotating or oscillating horizontally moving blade. The latter makes a loud noise; for this reason the times for using lawn mowers in residential areas are limited. Because of the large throwing range of their cutters, engine-driven lawn mowers are also dangerous. In most cases the material to be cut is pulled through the rotating or oscillating horizontally moving blades, is crushed in the process and often is not cleanly cut, i.e. not evenly and at varying cutting height, particularly because the blades are subject to great wear and their sharpness decreases. Re-grinding of the blades is often required and takes much time. In addition, engine-driven lawn mowers have undesirably great weight.
Chemical and/or mechanical means are used for removing weeds between or on flagstones, paving blocks and garden areas. The known chemicals for moss and weed killing pose a danger to the environment because of their penetration into the groundwater.
Mechanical weed removal devices, such as knives and wire brushes, damage and scratch the edges of the flagstones or paving blocks. In addition, they are clumsy and their use is time-consuming.
Compacting devices for cut and mown materials are known in the form of compressing and/or packing devices. They are attached in the form of packing/baling devices in such a way that baling of the mown materials becomes a complicated process. If a reduction of the volume and weight of the mown materials is also required, it can be accomplished with auxiliary devices only with great expenditures in energy and cost and with loud noise.
In city areas, cut mown materials are hauled away and placed in landfills in the form of garbage at great cost. In cities where biodegradable garbage is collected, only a portion of the cost for its removal by composting means can be recovered by the use of the compost. Carrying the cut mown materials to the trash container is not easy, and the cut materials take up a large amount of space in it.
SUMMARY AND OBJECTIVES OF THE INVENTION
It is the object of the invention to provide an implement by means of which lawn mowing, cutting and removal of moss and weeds and comminution of cut and mown materials becomes possible in a simple, easy and silent way and in a safe and environmentally beneficial manner by simple means.
This object is attained in accordance with the invention by these gardening implements which operate with at least one electrical heat conductor as a cutting, burning and comminuting tool.
It is furthermore an object of the invention to embody the gardening implement as a lawn mower which, along with a relatively simple construction, results in improved safety and improved mowing quality without a need for maintenance, as well as a high degree of quietness.
A further object of the invention in connection with the gardening implement is its embodiment as a weed killer, which can be operated in an ecologically compatible and economical manner, along with a very simple design of the implement and easy and safe handling.
Finally, it is the object of the invention to disclose a gardening implement which is simply constructed and easy to handle, which operates with little noise and which comminutes the cut and mown materials into a small volume and weight in a safe and environmentally compatible manner.
The gardening implement in accordance with the invention makes possible the simple, safe, easy-to-handle mowing of lawns, killing of moss and weeds and comminution of mown and cut materials in a low-noise and environmentally compatible manner by means of one or a plurality of electrical heat conductors in the form of wires or grids as cutting, burning and comminuting tools.
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REFERENCES:
patent: 3183650 (1963-04-01), Ferris
patent: 3559337 (1971-02-01), Marcoux et al.
patent: 3945370 (1976-03-01), Essington
patent: 4094095 (1978-06-01), Dykes
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