发明名称 Variable speed hydromassage pump control
摘要 A control for a hydromassage pump motor and pump controls the speed thereof at one of a plurality of predetermined speeds. The control includes a high voltage motor power control which is connected to the AC lines and to the motor to affect energization thereof and a low voltage user interface. The low voltage user interface is powered by a low cost, small, limited energy power supply which limits the current to the user interface and which provides electrical isolation from the AC lines.
申请公布号 US5151017(A) 申请公布日期 1992.09.29
申请号 US19910700278 申请日期 1991.05.15
申请人 ITT CORPORATION 发明人 SEARS, LAWRENCE;WALL, JOHN T.
分类号 A61H33/00;F04B49/06;F04D15/00;G05D7/06 主分类号 A61H33/00
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