Back to results
US 4,285,472 AGranted
Water dropping type irrigation pipe
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorsHiroaki Okada, Takefumi Sonoda, Osamu Shoji
Life of this patent
Estimating the term…
Abstract
A water dropping type irrigation pipe includes a conduit formed by peeling laminated films in a longitudinal direction; laminated side parts projected to both sides of the conduit in a form of fins and a water distribution passage formed by peeling at least one of the laminated side parts in a distribution passage pattern having a throat part which is branched from the conduit.
Claims7
A water dropping type irrigation pipe which comprises a base film;
- a peeling coating mounted on said base film along the longitudinal axis of said base film;
- a second film laminated onto said base film and said peeling coating to form a water conduit having at least one opening;
- and
- a plurality of laminated side parts projected from at least one side of the conduit in the form of fins to form a distribution passage which is branched from the conduit and has a throat in fluid communication with each of said at least one openings wherein said water distribution passage is formed by said conduit and said throat part and wherein said throat part is smaller in width than the distribution passage and said at least one opening.
1 more element
Dependencies are inferred from the claim text.