The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2004
Filed:
Nov. 08, 2002
Bruno Buluschek, Echandens, CH;
Swisscab S.A., Yvonand, CH;
Abstract
The invention concerns a drip irrigation conduits ( ) comprising a tube ( ) designed to be connected to a pressurised water source. The tube is provided with two lateral lips ( ) superposed on each other and are formed integral with said tube. The conduit ( ) further comprises, at intervals, flow cavities allowing water to trickle through ( ) communicating the tube ( ) inside with outside environment. The invention is characterised in that a strip ( ) is fixed in sealed manner between the lips ( ), and the cavities. ( ) are produced in said strip ( ) by stamping said strip ( A) so that they constitute through cavities substantially on either side of a longitudinal plane of symmetry (P) on the strip ( A), each flow cavity ( A) comprising at one first end a feed chamber ( ) designed to emerge into one of said conducts and at the other end a discharge chamber ( ) designed to emerge outside said one conduit; the stamping process being also designed so that the discharge chambers of the flow cavities located substantially on either side of the plane of symmetry (P) of the strip do not communicate with each other.