Back to results
US 4,056,936 AGranted
Benthic semi-barrier to control the growth of weeds in aquatic environments
OwnerJ. Richard Mayerinventor
Life of this patent
Estimating the term…
Abstract
A screen of foraminous material is laid directly on the surface of shallow water beds where weed growth is likely or is occurring. The screen is non-reactive to the surrounding water and creates a physical semi-barrier to rootlet and stem formation and to the transmission of light to the area therebetween to thereby retard germination and growth of weeds but not to stop growth entirely. The screen is formed with sufficient openings so that the normal movement of the surrounding water is not materially affected.
Claims2
An ecologically harmless method of limiting weed growth in selected areas of the bottom of a body of water comprising the steps of:
- placing a noncorrosive foraminous screen, having a plurality of generally uniform apertures, on an area to be treated upon existant plant life and in a co-planar relationship with the bottom of the body of water;
- maintaining said noncorrosive foraminous screen in close proximity and co-planar relationship with the bottom of the body of water;
- inhibiting plant growth in the area beneath said noncorrosive foraminous screen by,
- shielding said area from a substantial degree of the sun's rays with said noncorrosive foraminous screen;
- and
- limiting plant size in an area beneath and through said noncorrosive foraminous screen by,
- limiting the size of plant stems which extend through the foraminous screen to the size of the apertures in said noncorrosive foraminous screen.
4 more elements
Dependencies are inferred from the claim text.