초록 ▼

A water discharge device for use with irrigation systems, comprising a tubular element formed with female threads at the inside surface thereof and a screw element formed with male threads at the outside surface threof, the height of said female threads being different from that of said male threads

A water discharge device for use with irrigation systems, comprising a tubular element formed with female threads at the inside surface thereof and a screw element formed with male threads at the outside surface threof, the height of said female threads being different from that of said male threads, whereby a helical passage is formed along the female and male threads, through which water is moderately discharged under reduction of pressure.

대표청구항 ▼

A fluid discharge device for use with irrigation systems comprising a T-type body having a first tubular portion which defines a flow-through channel with oppositely directed connecting end portions adapted to be inserted into cooperating end portions of respective hoses, and a second tubular portio

A fluid discharge device for use with irrigation systems comprising a T-type body having a first tubular portion which defines a flow-through channel with oppositely directed connecting end portions adapted to be inserted into cooperating end portions of respective hoses, and a second tubular portion connected substantially perpendicular to said first tubular portion and provided with a free end portion, said second tubular portion being provided with female threads on the inside surface thereof and male threads on the outside surface of said free end portion, a screw element provided with male threads on the outside surface thereof, said screw element male threads engaging said female threads of said second tubular portion and defining therebetween a continuous flow passage therethrough, an aperture disposed in said first tubular portion, said aperture providing communication between said continuous flow passage and said flow-through channel, and a locking cap element disposed on the free end portion of said second tubular element in a manner to substantially close said free end and retain said screw element against rotation and axial movement, said cap element being provided with female threads which engage the male threads on the outside of said second tubular free end portion and a plurality of openings disposed in said cap element, said openings communicating with said continuous flow passage.