| 摘要 |
PCT No. PCT/AU87/00128 Sec. 371 Date Jan. 5, 1988 Sec. 102(e) Date Jan. 5, 1988 PCT Filed May 4, 1987 PCT Pub. No. WO87/06859 PCT Pub. Date Nov. 19, 1987.An irrigation sprinkler having a body to which is fitted a cap. Water issues from a nozzle in the body to impinge on the end of the cap, the end of the cap having an internal surface formed by revolution of an arc about the axis of the cap. Apertures are formed by serrations in the curved surface opening through a conical surface in the end of the cap. |
