Abstract: An anti-bird perching device which can be installed by draping over railings, water pipes, wire cables or the like, either as a permanent or temporary barrier or deterrent for keeping both small and large birds from landing or perching on the understructure to be protected is described. The device comprises two identical panels made of a wire open rectangular grid fencing which said panels are hingedly attached to one another at spaced horizontal points, and wherein the wire material above the hinge points define two parallel rows of crisscrossing upwardly projecting wire prongs or spikes defining a surface which deters birds from landing or perching thereon. The hinged attachment permits the two-wire panel units to be pulled apart for installation or collapsed tightly together for compact shipping and storage applications. A method of installing multiple barrier units along a span of electric cable, telephone wire or water pipes and the like is also disclosed.

Abstract: An anti-litter spreading and containment device for pet animals is disclosed. It consists in a fence-like structure which substantially surrounds and sits atop almost the entire perimeter of the animal's waste collection container.The invention also includes a device which is of utility in overcoming the difficulty experienced by small kittens in using cat waste boxes, said device consisting in a ramp-like walkway which leads to the top border of the waste collection container.

Abstract: The system includes a cage which has at least two wall portions with an open lattice structure and with a plurality of flexible rope sections joined to one another at their first ends and connected to the cage itself at their second ends by connecting mechanisms. Joining mechanisms may be included for joining the first ends of said flexible rope sections. In another embodiment, the sytem of the present invention involves a cage with at least two wall portions of open lattice structure and at least one multiple perch-creating flexible rope. The rope has a first end and a second end with separate connecting mechanisms on each end and the flexible rope is connected at one end to a first location of the cage and is then woven in a back and forth manner to create a plurality of perch sections within the cage and, finally, the second end with the connecting mechanism is attached to yet a different location within the cage.