Plant husbandry – Process – Soil conditioning
Reexamination Certificate
2001-02-14
2003-09-23
Jordan, Charles T. (Department: 3644)
Plant husbandry
Process
Soil conditioning
C405S129900, C427S421100, C156S326000
Reexamination Certificate
active
06622428
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a method of containing yard debris in piles or layers.
Every autumn trees drop their leaves and homeowners must remove them or risk harm to their grass and other plants. Blowing leaves also increase likelihood of accidents by obscuring hazards and reducing traction. Leaves may also cause blockage of drainage resulting in flooding. In many municipalities public works crews drive through the neighborhoods and vacuum these leaves up for disposal if the homeowner rakes them into piles at the roadside. Often there are several days of delay between the time the leaves are piled at the roadside and when the crews picks them up. Blustery weather and the wind from passing cars can redistribute the leaves. The homeowner then has to rake the leaves together in piles again. This frustrating process often occurs over and over sometimes two and three times until the leaves are finally removed.
Many things have been tried to keep the leaves in piles including covering them with old bedspreads and tarps. It is frequently a difficult task to spread out the tarps properly over the entire pile because they are often too small and the wind blows them off before they can be weighted down with something. The old bedspreads and tarps covering the piles also create an ugly eyesore that most homeowners would rather not have spread out in front of their house.
There have been several inventions to aid homeowners in the collection and containment of leaves such as U.S. Pat. No. 4,366,949 to Staub, U.S. Pat. No. 5,579,610 to Jackson, and U.S. Pat. No. 5,417,462 to Hensley. All of these inventions have relied on an expensive and cumbersome netting or fabric covering that has to be spread out and then weighted or staked down. Not only are these inventions difficult to operate but the covering apparatus creates an eyesore. All the inventions to contain leaves and other yard debris heretofore known suffer from a number of disadvantages.
BRIEF SUMMARY OF THE INVENTION
Briefly, in accordance with the present invention, an adhesive layer is applied to the surface of piles or layers of organic debris, such as, for example, autumn leaves. The adhesive layer binds together a layer of organic debris and holds the pile or layer in place. The adhesive layer may include functional additives such as fertilizer or live biological organisms to increase the rate of decay of the leaves and to increase the value of the resulting leaf mould.
DETAILED DESCRIPTION OF THE INVENTION
This invention is a method for containing organic debris is comprised of an adhesive layer applied to the outside of a pile or layer of organic debris. In the preferred embodiment the adhesive layer is biodegradable and non-toxic to plants and animals so that when organic debris is dumped in a landfill or used as mulch it does not pollute the soil or harm plants and animals. For optimum results, the adhesive layer would be made of all natural components, the adhesive would be derived from animal and vegetable materials that would also be friendly to the environment. The adhesive layer could come in the form of a powder or foam or as two parts whereby another component would be added such as water. One embodiment is a mixture by volume of: 2% ground psyllium husk; 33% denatured alcohol that acts as a suspending agent; and 65% water. The water would either be mixed with the powder in a bottle, in a hose attachment similar to lawn fertilizer sprayers or after the powder had first been sprinkled on leaves. The adhesive layer could include one or more additives such as; a biological agent that would accelerate the decomposing process of the yard debris, a fertilizing agent that would be beneficial to plants if the yard debris was used as a mulch spread around plants, a coloring agent so that when a person was distributing it over leaves they would know if the pile had been adequately covered. The adhesive layer, after drying, would be a non-gumming solution that would not damage the vacuuming equipment used to remove leaves from the side of the road.
The adhesive layer may be distributed with various equipment, for example, the distributing device is a pump spray bottle similar to the ones used with consumer cleaning solutions. The nozzle on the distributing device can be adjusted to spray a stream or a wide pattern and is non-clogging. In other embodiments the distributing device could be a can with wide holes to effectively distribute a powdered version of coating, or it could be a can under pressure to distribute an aerosol or foam version of coating. In other embodiments the distributing device could be a garden pump sprayer commonly used by homeowners to distribute herbicides. In other embodiments distributing device could be an industrial sprayer commonly used to distribute grass seed along highways. In still further embodiments the distributing device could be a lawn-fertilizing sprayer that includes a bottle that attaches on a garden hose (nozzle end sprayer such as the Ortho Dial'n Spray®) that would mix a powder or liquid concentrate with water as coating was sprayed on leaves. As the adhesive layer dries, leaves and other debris are bonded together into one piece so that blowing wind and passing cars cannot remove the large top layer and redistribute the pile. In other embodiments, the adhesive could come in the form of a powder that would be first sprinkled over leaves and then moistened with water that would begin the bonding of all loose leaves into one solid top component. The adhesive could also come with a coloring agent that would show the user that the entire pile of leaves had been adequately covered. In other embodiments, the adhesive could be distributed as mentioned above however, as it dries it would form a hard coat over leaves like paint on any surface. The aerodynamic qualities, shape and mass of coating would keep leaves in place in a pile or a few heavy objects like rocks could be placed on the pile.
One embodiment of the invention is to apply the adhesive layer to organic debris to control the movement of the organic debris from where the decomposition of the debris is advantageous. For example, autumn leaves may be blown by gas or electric powered leaf blowers from golf turf areas or home lawns into natural area and then treated with an adhesive layer. The adhesive layer would ensure the leaves do not get blown around. The decomposition of the leaves will enhance desirable soil characteristics (increased water retention, decreased erodability, reduction of weedy under story growth, increased health of desirable vegetation). The advantages of mulching is well know, see, for example, Mulching for a Healthy Landscape, Diane Relf, Virginia Tech Publication Number 426-724. This would also result in golfers being able to find errant golf balls more quickly.
Another embodiment of the invention is to apply an adhesive layer to autumn leaves arranged in a doughnut shape around the base of a tree. The adhesive layer would ensure the leaves do not get blown around. The decomposition of the leaves will enhance desirable soil characteristics (increased water retention, decreased erodability, and reduction of weedy under story growth, with resulting increased health of desirable vegetation. The leaves act as a barrier to plant growth from beneath the doughnut structure thus making lawn maintenance easier.
Addition of live biological organisms, including but not limited to Bacillus sp., Pseudomonas sp., Trichoderma sp., Erwinia sp., Pichia sp., Candida sp., Cryptococcus sp., Talaromyces sp.,
P. fumosoreus, B. bassiana,
Chaetomium sp., Gliocladium sp., Aureobasidium sp., Dabaryomyces sp., Exophilia sp., Ampelomyces sp., and Mariannaea sp will result in faster leaf breakdown accelerating removal of leaves and increase the benefits of leaf breakdown listed above. BIO•Bplus™ a product of GreenReleaf™ by Sybron is a commercially produced example of a mixture of bacteria specifically selected to speed breakdown of organic debris in lawns. The biological organisms may also be nitr
Jones Keith John
White, II Locke
Alimenti Susan C
Schwartz Law Firm P.C.
White, II Locke
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