Bird frightening devices
OwnerDavid H. LeMessurierinventor
Life of this patent
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Abstract
A Bird Scare comprised of a sheet of aluminium supported by a swivel and having both a twist and turned edges to enable sensitive response to effect rotation in very light rising air as well as rotation on gentle conventional wind and high wind conditions. The sheet material includes domes impressed throughout the material to increase reflective dissipation effect.
Claims10
A Bird Scare comprising a sheet of material having at least over a substantial portion of the surface a highly light reflective finish, and being of elongate shape which sheet is attached through a connector to a first side of a swivel, and a tie secured to a second side of the swivel, the attachment between the sheet and the swivel being at a narrower edge of the elongate shape of the sheet, the sheet including a shape providing a twist about an axis extending from the point of attachment in the elongate direction of the sheet, such twist being such as to induce rotation of the sheet in gently rising air when the sheet is freely hanging, the sheet shape further including a curved edge portion when measured along a direction transverse to the said axis, such curved portion being such as to induce rotation of the sheet in light winds when such winds are directed in a substantially transverse direction to the said axis.
A Bird Scare comprising a sheet of material having at least over a substantial portion of the surface a highly light reflective finish, and being of elongate shape which sheet is attached through a connector to a first side of a ball bearing swivel, and a tie secured to a second side of the swivel, the attachment between the sheet and the swivel being at a narrower edge of the elongate shape of the sheet, the sheet including a shape providing a twist about an axis extending from the point of attachment in the elongate direction of the sheet, such twist being such as to induce rotation of the sheet in gently rising air when the sheet is freely hanging, the sheet shape further including curved edge portions when measured along a direction transverse to the said axis, such curved portions being such as to induce rotation of the sheet in light winds when such winds are directed in a substantially transverse direction to the said axis, and said sheet of material having a plurality of dome shapes formed therein throughout center areas of said sheet.
Dependencies are inferred from the claim text.