发明名称 Apparatus and method for cleaning hot water heater tanks
摘要 Apparatus and method for the removal of deposits from the tank bottom of a hot water heater by employing a cleaning tool adapted to be connected to a suction attachment of a vacuum cleaner and inserted into the tank through an opening in the side of the tank adjacent to the tank bottom. The cleaning tool has a configuration such that it can be manipulated to move its intake end over the tank bottom area.
申请公布号 US4976004(A) 申请公布日期 1990.12.11
申请号 US19880255592 申请日期 1988.10.11
申请人 发明人
分类号 A47L7/00;A47L9/02 主分类号 A47L7/00
代理机构 代理人
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