Poultry watering system with float box and elongated line
Patent 4794881 Issued on January 3, 1989. Estimated Expiration Date: 
November 20, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 20, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1202854 2771058 3008451 3537430 3724425 3874344 Animal watering valve with protected biasing spring Patent #: 4402343 InventorAssigneeApplicationNo. 06/932865 filed on 11/20/1986US Classes:119/72.5, Drop-delivering119/78Float-controlled supplyExaminersPrimary: Swiatek, Robert P.Assistant: McNeil, Mary E. Attorney, Agent or FirmInternational ClassesA01K 39/02 (20060101)A01K 39/00 (20060101) A01K 39/024 (20060101) AbstractAn inexpensive poultry watering system allows water to be supplied under very low pressure (e.g. a 2 inch head) to nipples or similar water dispensers, without the use of a regulator. Relatively high pressure water is fed into a float box, with a float valve assembly in the box valving the water as it flows into the float box, to establish a level of water in the box. An outlet opening from the box is connected to an elongated (e.g. 8 foot-10 foot) conduit which has the nipples, or other water dispensers, spaced along it. The conduit is suspended by conventional hangers, The float box needs no additional support, being connected to the conduit by a short pipe section and collar. A ballast/support pipe may be mounted above the conduit. The plastic float box has an anti-roost ridge at the apex of its top, and its bottom is sloped from the inlet toward the outlet.Other References
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