Global Patent Index - EP 0863804 A4

EP 0863804 A4 2001-05-09 - DRIP IRRIGATION HOSE AND METHOD OF ITS MANUFACTURE

Title (en)

DRIP IRRIGATION HOSE AND METHOD OF ITS MANUFACTURE

Title (de)

ROHR ZUM TROPFENWEISE BERIESELEN UND VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

TUYAU D'IRRIGATION GOUTTE-A-GOUTTE ET SON PROCECE DE PRODUCTION

Publication

EP 0863804 A4 (EN)

Application

EP 95944044 A

Priority

US 9515481 W

Abstract (en)

[origin: WO9719759A1] The serpentine, turbulence inducing path lengths (30) from the inlets (26) to the outlets (28) of the flow regulating passage (22) of a continuous emitter drip irrigation hose are arranged in back to back fashion relative to the outlets in the sense that the chevrons angle away from each of outlets, so there is parallel turbulent flow from two inlets to each outlet. The inlets are sufficiently large that they do not limit the flow rate through the outlets. This doubles the flow rate from each outlet without changing the dimensions of the flow regulating passage.

IPC 1-7 (main, further and additional classification)

A01G 25/02; B05B 1/20

IPC 8 full level (invention and additional information)

A01G 25/02 (2006.01)

CPC (invention and additional information)

A01G 25/02 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE DE ES FR GB GR IE IT NL PT SE

EPO simple patent family

WO 9719759 A1 19970605; AU 4594896 A 19970619; AU 723101 B2 20000817; EP 0863804 A1 19980916; EP 0863804 A4 20010509

INPADOC legal status


2003-12-17 [18R] REFUSED

- Effective date: 20030506

2001-10-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010817

2001-05-09 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010328

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE DE ES FR GB GR IE IT NL PT SE

2001-05-09 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7A 01G 25/02 A, 7B 05B 1/20 B

1998-09-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980604

1998-09-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE DE ES FR GB GR IE IT NL PT SE