Netting, Open Weave, Mesh, Or Foraminous Type Patents (Class 47/31)
  • Method of inhibiting bird-nesting at an airport
    Patent number: 4091625
    Abstract: A method which contemplates the application of a porous, fabric-like cover over bird-nesting areas at airports, to serve as a physical barrier preventing the natural use by the birds of any nominal vegetation which might grow beneath same, so as to effectively inhibit continued use of these areas for said bird-nesting activities. This, in turn, minimizes the hazards posed by birds to jet planes using the airport.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: May 30, 1978
    Inventors: Emilio Fontana, Rocco Fontana, Walter Schiffelholz
  • Benthic semi-barrier to control the growth of weeds in aquatic environments
    Patent number: 4056936
    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.
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: November 8, 1977
    Inventor: J. Richard Mayer
  • Method and means for covering low plant growths
    Patent number: 3975859
    Abstract: A method and article for horticultural protection of plant growths during the maturation thereof whereby the volume exchange of oxygen, carbon dioxide, and moisture is controlled in accordance with the demands thereof during maturation.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Breveteam S.A.
    Inventor: Jean-Pierre Muller