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:
Oct. 13, 1998
Filed:
Mar. 04, 1997
Elaine Marans, Pasadena, CA (US);
Rain Bird Sprinkler, Mfg. Corp., Glendale, CA (US);
Abstract
An improved drip irrigation emitter is provided for low volume supply of water at a trickle or drip flow rate. The emitter comprises a housing adapted for connection to a water supply hose, and includes a water inlet and a water outlet with an elongated pressure reducing flow channel extending therebetween. The flow channel is lined on opposite sides by a plurality of flow diverting ribs which project laterally and partially into the flow channel in a staggered or alternating pattern, in combination with a plurality of flow diverting weirs which project upwardly and partially into the flow channel from a floor thereof. The flow diverting ribs and weirs define a three dimensional tortuous flow path for repeated back-and-forth and up-and-down directional flow change as water travels therethrough, resulting in an improved pressure drop between the water inlet and outlet.