发明名称 MOTORIZED CEILING FAN LIFTING AND LOWERING APPARATUS
摘要 A motorized ceiling fan lifting and lowering apparatus for lowering a ceiling fan so that the ceiling fan may be easily cleaned. The motorized ceiling fan lifting and lowering apparatus includes a tubular member, which is elongated and has a first end and a second end. The first end is open. A shoulder is integrally coupled to an edge of the first end and extends inwardly. A lip extends upwardly from the shoulder. The lip has a threaded inner surface. The second end of the tubular member is coupled to a ceiling fan. A motor is attached to the ceiling. A shaft has a first end attached to the motor such that the motor may selectively rotate the shaft in a first direction or a second direction. The shaft is threaded and has a second end extending through the lip and into the tubular member such that the shaft threadably engages the lip. An actuator selectively actuates the motor in the first or second direction for lowering and lifting the ceiling fan. The actuator is electrically coupled to the motor.
申请公布号 US2002085919(A1) 申请公布日期 2002.07.04
申请号 US20000751744 申请日期 2000.12.29
申请人 ROSS CURTIS O. 发明人 ROSS CURTIS O.
分类号 F04D25/08;F04D29/60;(IPC1-7):F04D29/64 主分类号 F04D25/08
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