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    • 73. 发明授权
    • Shower head
    • 淋浴头
    • US4154402A
    • 1979-05-15
    • US776132
    • 1977-03-10
    • Samuel L. Fletcher
    • Samuel L. Fletcher
    • B05B1/08B05B1/12B05B1/34
    • B05B1/3452B05B1/08B05B1/12B05B1/3447B05B1/3478
    • A stem has an upper central bore terminating a short distance from the lower end, with transverse holes for connecting the bore with the outside of the stem. Below these holes is a spiral rib, such as an Acme thread, with the lower end of the stem being beveled. A housing having interfitting threads with the stem and adjustable along the stem has a central bore terminating in a conical surface corresponding to the bevel of the stem, from which a hole extends to the lower end of the housing. A restricted hole in a passage leading to the stem, as in the ball of a ball joint, restricts flow through the head to on the order of 2 to 1.6 gallons per minute, for certain sizes of holes tested. A pair of opposed holes, spaced equidistantly from the bottom of the stem, extend through the rib area into a short counterbore at the lower end of the stem, and result in the production, at certain longitudinal positions of the housing relative to the stem, of pulsating, oscillating jets having a massage effect. These holes may be positioned at different places relative to the rib and to the channel between turns of the rib.
    • 杆具有一个上部中心孔,其中心孔距离下端有一个很短的距离,其横向孔用于将孔与杆的外部连接起来。 在这些孔下面是螺旋肋,例如Acme螺纹,杆的下端被倒角。 具有与杆相配合的螺纹并具有可沿柄杆调节的壳体的壳体具有中心孔,该中心孔终止于对应于杆的斜面的锥形表面,孔从孔延伸到壳体的下端。 如通过球接头的球一样,通向杆的通道中的限制孔限制了通过头部的流量为每分钟2至1.6加仑,对于某些尺寸的测试孔。 从杆的底部等距离地延伸的一对相对的孔在杆的下端延伸穿过肋区域进入短的沉孔,并且导致在壳体相对于杆的某些纵向位置处的产生, 具有按摩效果的脉动,振荡射流。 这些孔可以位于相对于肋的不同位置和肋的匝之间的通道。