Recreational vehicle waste drainer
Patent 5904183 Issued on May 18, 1999. Estimated Expiration Date: 
October 15, 2016. 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.
October 15, 2016. 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 3712331 3730228 3811462 Waste evacuation attachment for recreational vehicles Sewer connector Drain line for recreational vehicles Waste dispensing device for recreational vehicles and the like Hose support RV sewage line assembly Sewage draining device for recreational vehicles or the like InventorApplicationNo. 731510 filed on 10/15/1996US Classes:138/110, With hose protector137/355.16, With hose storage or retrieval means138/89, WITH CLOSURES AND PLUGS138/114, Coaxial138/120Joined sectionsExaminersPrimary: Ferensic, Denise L.Assistant: Hook, James Attorney, Agent or FirmInternational ClassF16L 57//00AbstractA recreational vehicle (RV) waste drainer having a drainer sheath (1) with an angled drain nipple (3) at a receptacle end in fluid communication with an expandable tube (5) in the drainer sheath. A drain end of the expandable tube is attached to the drain nipple. A holding-tank connector (6) on a holding-tank end of the expandable tube connects the expandable tube to an RV holding tank (21, 22) for draining it and connects the expandable tube to a sheath lid (4) for sealing the drainer sheath and the expandable tube against escape of odorous gases and liquid at a tube end of the drainer sheath when not in use. The drain nipple has a beveled nipple-attachment wall (9) that is resilient and sized to fit inside of receptacle pipes (10) of RV sewage receptacles (11). A nipple lid (2) has a nipple sleeve that fits onto the beveled outside periphery of the drain nipple like an input pipe to seal the drainer sheath against escape of odorous gases and liquid at the drain nipple when not in use. | |
