Device for sustained-release of a chemical onto an animal...

Details Device for sustained-release of a chemical onto an animal... Device for sustained-release of a chemical onto an animal...

A - Human Necessities

01

N

43/104, 167/3.1

A01N 25/34 (2006.01) A01K 11/00 (2006.01) A01K 13/00 (2006.01) A01K 27/00 (2006.01)

Patent

CA 1307199

ABSTRACT OF THE DISCLOSURE A device for the controlled, sustained-release of an animal-treating composition, such as an insecticide, onto the surface of an animal in contact with the device comprises a res- ervoir defined by a permeable, imperforate, polymeric membrane. A porous packing inside the reservoir continuously wets the in- side of the reservoir with the animal-treating composition so that the composition can continuously permeate through the mem- brane to the outer surface of the reservoir. A porous sheath in contact with the outer surface of the reservoir continuously con- ducts the composition away from the membrane and continuously deposits the composition onto the surface of the animal. The device is particularly useful for controlling horn flies on range animals, such as cattle.

606973

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