Vacuum cleaner accessory for water heaters
September 18, 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 2203088 2206959 2241771 Gutter cleaning nozzle Suction-cleaning dust retriever Rotatable indexable accessory vacuum cleaner tool Apparatus and method for cleaning hot water heater tanks Nozzle integrating assembly for vacuum cleaners Water heater tank cleaning kit Ceiling fan brush and adjustable angle tube vacuum connector for same Patent #: 5410776 InventorApplicationNo. 714014 filed on 09/18/1996US Classes:15/415.1, Nozzle15/395, For opposed surfaces or hollow work internal cleaning15/401, Scraper or squeegee type15/414Detachable and/or extension nozzlesExaminersPrimary: Moore, Chris K.Attorney, Agent or FirmInternational ClassA47L 009/06AbstractAn accessory for a vacuum cleaner for cleaning sediment from the floor of the inside of an electrical hot water tank is received within the electrical heating element mounting port of the tank and is configured such that it may be manipulated in a 360 degree traverse for cleaning the convex dome shaped floor including the floor adjacent the wall. The accessory has a first tubular member having one end adapted to be connected to the vacuum cleaner and includes four sections which have respective axes of elongation inclined relative to those of the adjacent sections. A second tubular member is received within the end of the first tubular member remote from the end which is attached to the vacuum cleaner and has a nozzle at its free end. The second tubular member may swivel about its axis relative to the first tubular member and may be extendible along its axis relative to the first tubular member. The nozzle has a free end which is inclined at an angle relative to the axis of the second tubular member for complementing the convex shape of the floor. | |
