公开(公告)号：US5347664A

公开(公告)日：1994-09-20

申请号：US791918

申请日：1991-11-12

申请人： Hassan Hamza ,  Garrett J. Burkitt, III ,  Gordon D. Olson

发明人： Hassan Hamza ,  Garrett J. Burkitt, III ,  Gordon D. Olson

IPC分类号： A61H33/00 ,  F04B49/025 ,  G01F23/74 ,  E04H4/12

CPC分类号： F04B49/025 ,  A61H33/6073 ,  G01F23/74 ,  A61H2033/0054 ,  A61H2201/0176

摘要： A suction fitting for use in a water circulation system, the fitting having a perforated body that is mounted to permit fluid flow through both front and rear perforated faces, and thereby minimize the possibility of complete blockage of the fitting by entrapped hair or skin. Operation of a circulating pump is controlled to prevent damage to equipment and property and also to minimize the possibility of serious personal injury or death. The suction fitting further includes a suction tube for connection to the pump, for circulating water in the tub or spa back through jets in the tub or spa, and a pressure sensor line connecting the water in the tub or spa to a water level sensor. The front face of the perforated body has a number of grooves, to provide fluid communication between the pressure sensor line and the suction tube, through one or more front-face perforations. When flow into the suction fitting is blocked, a reduced pressure is sensed immediately behind the front face of the perforated body, through the pressure sensor line and the grooves in the front face, and the pump is disabled to prevent damage or physical injury.

摘要翻译： 一种用于水循环系统的抽吸配件，该配件具有穿孔体，其被安装成允许流体流过前后穿孔面，从而最小化被夹带的头发或皮肤完全阻塞配件的可能性。 控制循环泵的运行，以防止损坏设备和财产，并尽可能减少严重人身伤害或死亡的可能性。 吸入装置还包括用于连接到泵的吸入管，用于使桶中的水循环或通过浴缸或水疗中心内的喷嘴温水回流，以及将浴缸或温泉中的水连接到水位传感器的压力传感器线。 穿孔体的前表面具有多个凹槽，以通过一个或多个前面穿孔提供压力传感器线和吸入管之间的流体连通。 当进入吸入配件的流体被阻塞时，通过压力传感器线和前面的凹槽立即感测穿孔体的正面后面的减压，并且泵被禁用以防止损坏或人身伤害。