Patent ID: 7051677

Claim:
A livestock watering tank, comprising: a) a tank for receiving water for feeding livestock having first and second sidewalls, an upper rim having an interior space; and a bottom wall, said tank being formed of molded plastic to prevent corrosion; b) a drinking tray for livestock to drink water from, said drinking tray being formed of molded plastic and removably mounted on the bottom of said tank for quick disassembly and cleaning, said drinking tray having an outer wall substantially coextensive with one of the sidewalls of said tank, said one sidewall of said tank being indented above said drinking tray to form a recessed section for receiving an animal's head to drink from said drinking tray; c) means for supplying water from said tank to said drinking tray; d) a float valve for controlling the supply of water from said tank to said drinking tray; e) said tank being shaped so as to be nestable with another tank and including a first pair of spaced-apart nesting members formed on said first sidewall of said tank, and a second pair of spaced-apart nesting members formed on said second sidewall of said tank, and said first and second pairs of nesting members each having nesting surfaces on their lower edges for engaging and resting on said upper rim of another tank in order to allow said tank to nest within another tank and to space the rims of the tanks apart a predetermined amount; f) said interior space of said upper rim of said tank defining a first channel therein along said first sidewall extending between at least said first pair of spaced-apart nesting members; and said interior space of said upper rim of said tank defining a second channel therein along said second sidewall extending between at least said second pair of spaced-apart nesting members; g) said first channel having disposed in said interior space of said upper rim a first longitudinal support member extending between at least said first pair of spaced-apart nesting members and being adjacent to said first sidewall of said tank in order to provide increased structural integrity and nestability of said tank when nesting two or more of said tanks with each other; h) said second channel having disposed in said interior space of said upper rim a second longitudinal support member extending between at least said second pair of spaced-apart nesting members and being adjacent to said second sidewall of said tank in order to provide increased structural integrity and nestability of said tank when nesting two or more of said tanks with each other; and i) said first and second longitudinal support members are mounted to said upper rim by rivets screws or bolts.