Webbed thermoplastic pipe for drip irrigation systems - offering close, self-regulating control of water release

申请公布号：FR2356986(A1)

申请号：FR19770020003

申请日期：1977.06.29

申请公布日期：1978.01.27

申请人：

DRORI MORDEKI

分类号：A01G25/02;B05B1/02;F16L55/00;(IPC1-7):05D7/01;01G25/02;05B1/20;29D23/10

主分类号：A01G25/02

摘要：<p>Pipes or hoses for drip feed irrigation from a pipe discharging at intervals into outlets comprising a non-linear passage between >=2 layers of flexible thermoplastic sheet joined by weld lines which bound the outlet passage. Used for either buried or suspended pressure pipe supplies feeding integral or individually connected outlets. The passage profiles can be designd for various pressure drop levels to provide a restrained discharge from the feeder pipes. Pref. designs are self-regulating so that outlets having high input pressures bend to increase flow restriction, so that outlets at various distances along a single ended supply discharge at similar rates despite the progressive pressure drop along the supply pipe.</p>

VAPOUR CONDENSOR

CABLE ROTATING HAWSE HOLE

METHOD OF HYDROLYSIS OF THE 1-AMINO-2,4-DIBROMANTRACHINONE

APPARATUS FOR GRINDING ESPECIALLY PLANAR FACES OF VARIOUS SIZES ON GLASS OBJECTS

RECUPERATION HEAT EXCHANGER

TRAVELLING MACHINE FOR THE TRACK CONSTRUCTION MAINLY THE SCRAPER BED CLEANER

THYL-L,1 BIPHENYL-2-YL/ETHENYL/-3,4,5,6-TETRAHYDRO-4-HYDROXY-2H-PYRAAN-2-ONE

FACILITY FOR MAKING THE BINDING WITH CONSTANT MIXING RELATION

EPOXIDE POWDER COMPOSITIONS

DISC CLUTCH WITH THE MEMBRANE SPRING

ESTERS OF TEREBIC ACIDS AND METHOD OF MAKING THE SAME

METHOD OF MAKING THE COPOLYMERE OF THE STYRENE

METHOD OF MAKING POLYMERIC GELS OF AKRYLAR OR METHACRYLAR TYPE CONTAINING FREE AMINO AND MERCAPTO GROUPS

METHOD OF MAKING THE MONOCRYSTAL OF THE SINGLE-VALENCE MERCURY

11-/AMINOALKYL/DERIVATIVES OF THE 11H-DIBENZO/B,E/-1,4-DITHIEPIN A 11H-DIBENZ-/B,F/-1,4-OXATHIEPINE AND METHOD OF PREPARATION OF THE SAME

ANTIFRICTION SEATING OF THE ROLLER JOURNAL OF THE ROLLSTAND ON THE DOUBLE-ROW SPHERICAL ROLLER BEARING

FACILITY FOR THE TWO-WAY PROPULSION OF THE ROPEWAY WIRE STRAND

METHOD OF PREPARATION OF THE ALCYLESTER OF THE 3-METHYLCHINOXALINE-1,4-DIOXIDE-2-CARBOXYL ACID

FACILITY FOR REDUCTION OF THE COMPOUNDS OF THE SIX-VALENCE CHROME IN THE WORKING ELECTROLYTE

APPLAINCE FOR HARVEST AND TURNING THE PRODUCE PARTICULARLY VEGETABLES